Echidna Black & White Stock Photos
RMG7J3EH–short-beaked echidna, Tachyglossus aculeatus, Tachyglossidae, illustration from book dated 1904
RMB5T023–Echidna spiny anteaters, extant mammal species belonging to the Tachyglossidae family of the monotremes, hedgehog
RMTB2PT9–Spiny anteater (Tachyglossidae), Historische, zeichnerische Darstellung, Ameisenigel (Tachyglossidae) oder Schnabeligel oder Echidna, Kloakentiere (Monotremata) oder Gabeltiere, 19. Jahrhundert
RMRYEY6D–Wood cut engraved illustration, taken from 'The Treasury of Natural History' by Samuel Maunder, published 1848
RFEW4F45–Echidna or spiny anteaters, vintage engraved illustration. Natural History of Animals, 1880.
RF2H0W99H–Black and white educational cartoon illustration of typical Australian animal species and world map with continents coloring book page
RFT5XP98–Echidna belong to the family Tachyglossidae in the monotreme order of egg laying mammals vintage line drawing or engraving illustration.
RFW2GWKM–Animals of Australia set of sketshes. Echidna, platipus doodle isolated on white background. Vintage. Vector. Black and white
RF2DFC219–Echidna. Engraved black and white Fantasy illustration with mythological creatures and characters
RMC36JD8–19th Century book illustration, taken from 9th edition (1875) of Encyclopaedia Britannica, of Western Long-beaked Echidna
RF2DKB9XC–Echidna, short echidna, spiny anteater, Tachyglossus aculeatus, illustration from 1885 / Ameisenigel, Kurzschnabeligel, Tachyglossus aculeatus, Illustration aus 1885, Historisch, historical, digital improved reproduction of an original from the 19th century / digitale Reproduktion einer Originalvorlage aus dem 19. Jahrhundert
RFPG50PF–Flat Australia and Oceania flora and fauna elements. Animals, birds and sea life simple line icon set. Vector illustration
RF2DKW94R–Echidna, short echidna, spiny anteater, Tachyglossus aculeatus, illustration from 1885 / Ameisenigel, Kurzschnabeligel, Tachyglossus aculeatus, Illustration aus 1885, Historisch, historical, digital improved reproduction of an original from the 19th century / digitale Reproduktion einer Originalvorlage aus dem 19. Jahrhundert
RF2D3TM5Y–Black and White Illustration of Educational Counting Game for Children with Cartoon Wild Animal Characters Group Coloring Book Page
RF2CTH9F9–Black and White Cartoon Illustration of Finding the Right Picture to the Shadow Educational Task for Children with Wild Animal Characters Coloring Boo
RF2D1A4T5–Black and White Cartoon Illustration of Find One of a Kind Picture Educational Game with Comic Wild Animal Characters Coloring Book Page
RF2GEDA4C–Black and white cartoon illustration of educational game of matching halves of pictures with wild animals characters coloring book page
RM2BTX4PT–Echidna trossula Jordan Starks. Holotype, 133 mm; 2 paratypes removed to usnm 320270; tt-02381 (loose in jar)21 Feb 20181
RF2E9ME46–Black and white cartoon illustration of educational matching task for children with animal species characters and continents coloring book page
RF2JH5RW3–Australian animals color line icons set. Pictograms for web page, mobile app, promo. UI UX GUI design element. Editable stroke.
RF2HK6FKR–Vintage illustration of echidna on isolated white background. Vector illustration animal from Australian. Retro design character wildlife in engraving
RF2RE462D–Wild animal black silhouettes of hunting sport and zoo vector design. Kangaroo, koala bear, badger and beaver, platypus, kiwi bird, porcupine and lemur, echidna, capybara and armadillo wild animals
RM2JA9NEP–Engraving of a spiny anteater, the western long-beaked echidna (Zaglossus bruijnii) of New Guinea
RM2ABXCNC–SOME INTERESTING ANIMALS. Bicycle. A Phonograph Voice. THE ALPACA. The Liquefaction of Hydrogen. THE ECHIDNA OR PORCUPINE ANT EATER., scientific american, 1895-04-27
RM2AJ1CH1–Outlines of zoology . which there isa close (placental) union between the unborn embryo and itsmother, e.g. Ungulates, Carnivores, Monkeys. BIRDS. {b) Metatheria, Didelphia, or Marsupials—the prematurely bearing,usually pouch-possessing kangaroos, opossums, etc. (c) Prototheria, Ornithodelphia, or Monotremes—the egg-layingduckmole (Orniihorhynchus), Echidna, and Proechidna. i^ 1^ —,- -*? -— V •*^ % *^tA ^^ ^B^^^^l ^ ?^^ ^^^^^&W ^ kI Fig. 2.—Phenacodus, a primitive extinct Mammal.—After Cope. Birds. —There can beno hesitation as to theclass which ranks next toMammals. For Birds arein most
RM2ABX2D8–GUINEA ANT EATER. A TATTOOED WHALE. small fishes: and BRUIJN'S ECHIDNA (PROECHIDNA BRIIIJND NEW GUINEA ANT EATER, scientific american, 1887-08-27
RFR1PGWA–Platypus vector icon isolated on transparent background, Platypus transparency logo concept
RF2RF8W4T–Animals of Australia Icons Set. Kangaroo, Koala, Emu. Editable Stroke. Simple Icons Vector Collection
RMG16EDC–The platypus (Ornithorhynchus anatinus) is a semiaquatic mammal endemic to eastern Australia, including Tasmania. Together with the four species of echidna, it is one of the five extant species of monotremes, the only mammals that lay eggs instead of givi
RMPG08MT–. American types of animal life. Zoology; Animal behavior. THE OPOSSUM 6i other beasts. Nevertheless, it is now certain that it truly lays eggs, and that the same is the case with the echidna. Fig. 17.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Mivart, St. George Jackson, 1827-1900. Boston, Little, Brown and Company
RM2AKR5TH–First lesson in zoology : adapted for use in schools . FiQ. 233.—Duck-bill. Australia. (One-fourth natural size.) the duck-bill), which are long and narrow in the Echidna,or broad and flat in the duck-bill {Ornithorhynclius para-doxus), where it is covered by a leathery integument; theexternal ear is wanting; in these respects they resemblereptiles and birds. In the aquatic duck-bill (Fig. 333) the feet are webbed,with claws of moderate size. It is covered with a soft fur,and is a-bgut half a metre (17-33 inches)-long. Its habits 232 FIRST LESSONS IN ZOOLOGY.. are like those of a muskrat, freq
RFR1PGXX–Ant Eater vector icon isolated on transparent background, Ant Eater transparency logo concept
RMPFYKK3–. The popular natural history . Zoology. THE SLOTH. 225 somewhat similar to that of the Ant-eater, and there are no teeth of any kind in the jaws. The food of the Echidna consists of ants and other insects, which it gathers into its mouth by means of the long extensile tongue. It is a burrowing animal, and is therefore furnished with limbs and claws of proportionate strength. Indeed, Lieutenant Breton, who kept one of these animals for some time, considers it as the strongest quadruped in existence in pro- portion to its size. On moder- ately soft ground it can hardly be captured, for it gathe
RM2AGBGCF–. Outlines of zoology. totheria {Syn. Ornithodelphia),Orders Monotremata and (?) AUotheria The Monotremes include the duckmole {Ornithorhynchusanatinus), the spiny ant-eater {Echidna aculeata), and athird form resembling Echidna, but often referred to adistinct genus as Proechidna. These are the lowestMammals, very different from all the rest, and they exhibitaffinities with Reptiles. The duckmole is found in the rivers of Australia andTasmania; Echidna in Australia, Tasmania, and New Guinea; Proechidna in NewGuinea. In Ornithorhynchus the skinis covered with soft fur; inEchidna and Proechidna
RMPG43FC–. The mammary apparatus of the mammalia : in the light of ontogenesis and phylogenesis . Mammals; Mammary glands. MAMMARY POUCHES OF ECHIDNA 11. Fig. 3.—Echidna: Showing the Two Mammary Pouches described by Owen. (After Owen.) case of danger ! Further development pro- ceeded by the deepening of these slits, thus. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Bresslau, E. (Ernst), 1877-; Hill, James Peter, 1873-1954. Londo
RM2ANEP0M–The encyclopdia britannica; a dictionary of arts, sciences, literature and general information . nterior and posterior in some animals. 402 BRAIN [ANATOMY the first appearance of the fascia dentata (see fig. 20). The anteriorcommissure is divided, as in reptiles, into dorsal and ventral parts, ofwhich the latter is the larger (fig. 20, Comm. V. and Z).), while justbehind the dorsal part is the first appearance of the fimbria or fornix.In addition to the two fissures already named, there is, in the Echidna,one which in position and mode of formation corresponds with theSylvian fissure of higher
RMPG43FK–. The mammary apparatus of the mammalia : in the light of ontogenesis and phylogenesis . Mammals; Mammary glands. INCUBATORIUM OF ECHIDNA 5 of the abdomen from that of Echidna, In the case of Echidna, the cutaneous muscle, which covers nearly the whole surface of. Fig. 1.—Echidna: Ventral View of a Brooding Female, showing the so-called Incubatorium SOMEWHAT ENLARGED. (HaAGKE.) -r-!- The two tufts of hair in the lateral folds of the mammary pouch (6.771.), from which the secretion flows ; cl., cloaca. the trunk, leaves free an oval area of the abdominal wall, situated between the two mammary g
RM2AGBHK3–. Outlines of zoology. disc of formative epibiast;jSw., blastodermic vesicle;H., hypobast. of cells. Development begins in theoviducts, but the eggs are in noway attached to the wall. They arelaid in a nest by the Duckmole; in the Echidna they arehatched in a slight, periodically developed, external pouch. CONNECTION BETWEEN EMBRYO AND MOTHER. 727 {b) In the Marsupials the embryo is born prematurelyafter a short gestation. It is very small and helpless. Tillrecently it was believed that during its intra-uterine life itwas either not attached to the wall of the uterus at all, oronly to a slight
RMPG43DA–. The mammary apparatus of the mammalia : in the light of ontogenesis and phylogenesis . Mammals; Mammary glands. 60 MAMMARY APPARATUS OF THE MAMMALIA and 20), and, with the disappearance of the membrana reuniens inferior, approach each other in a medioventral direction. But while in the Echidna they remain passive until the formation of the mammary hairs and glands, in the Marsupialia the differentiating processes.. / ./ Fig. 20.—Embryo of Perameles. (After Hill.) already started in the Didelphys embryo, go steadily forwards, so that even before birth the primary-primordia have entirely disap
RMRDEG1M–. American types of animal life. Zoology; Animal behavior. THE OPOSSUM 6i other beasts. Nevertheless, it is now certain that it truly lays eggs, and that the same is the case with the echidna. Fig. 17.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Mivart, St. George Jackson, 1827-1900. Boston, Little, Brown and Company
RMPG43F1–. The mammary apparatus of the mammalia : in the light of ontogenesis and phylogenesis . Mammals; Mammary glands. 18 MAMMARY APPARATUS OF THE MAMMALIA bloodvessels (Fig. 6c). Internally to the cutis the beginnings of the trunk muscles were distinctly seen. Further, the primordia of the skin muscle were visible as thickenings of the cutis, which extended ventrally on either side as far as the epidermal thickenings. These formations undoubtedly represent the first primordia of the mammary apparatus, the. Fig. 6c.—Echidna: Semon's Embryo. Transverse Section through the Primary-Primordia, show- in
RMRDT3AK–. An introduction to the study of zoology. Zoology. 28o AN INTRODUCTION TO ZOOLOGY. Mammalia. Link between Mammalia and Reptiles.— The Mammalia, or animals that suckle their young, are connected with Reptiles by the existence of a link between them, the Australian animal called the duck- billed mole, or Ornithorhynchus (bird-billed animal).. IPig. 105.—The Duct-billed Mole, OrnithorhyneJius paradoxus, a link between Reptiles and Mammalia. To this animal, with another similar kind, called Echidna, the group name of Monoteemata has been given. The structure of its pectoral girdle is like that of
RMPG43E6–. The mammary apparatus of the mammalia : in the light of ontogenesis and phylogenesis . Mammals; Mammary glands. 28 MAMMARY APPARATUS OF THE MAMMALIA these hair primordia, which are crowded to- gether and are sometimes concentrically arranged, is over 100 for each primary- primordium, so that they are henceforward characterized by an unusual wealth of hairs, in contradistinction to their former baldness. The significance of these formations comes out more distinctly still in the following stages, ^i^. Fig. 12a.—Echidna : Transverse Section through THE Incubatorial Area OF Semon's Embryo, Stag
RMRDA6KR–. The popular natural history . Zoology. THE SLOTH. 225 somewhat similar to that of the Ant-eater, and there are no teeth of any kind in the jaws. The food of the Echidna consists of ants and other insects, which it gathers into its mouth by means of the long extensile tongue. It is a burrowing animal, and is therefore furnished with limbs and claws of proportionate strength. Indeed, Lieutenant Breton, who kept one of these animals for some time, considers it as the strongest quadruped in existence in pro- portion to its size. On moder- ately soft ground it can hardly be captured, for it gathe
RMPG43EC–. The mammary apparatus of the mammalia : in the light of ontogenesis and phylogenesis . Mammals; Mammary glands. 26 MAMMARY APPARATUS OF THE MAMMALIA. Fig. 10.—Echidna: Semon's Embryo. Teansverse Section of a still Older Pouch-Young, show- ing THE PrIMARY-PRIMORDIA WHICH HAVE AGAIN BECOME Distinct. These are indicated by Crosses.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Bresslau, E. (Ernst), 1877-; Hill, James Pete
RMRDHJK6–. Elementary text-book of zoology. MAMMALIA. 491 Other skeletal peculiarities must be noted.^ The pelvis bears a pair of epipubic bones similar to those of the Meta- theria, arid at least in Echidna the acetabulum is incompletely ossified. The cervical ribs are incompletely fused on to the cervical vertebrae, and the dorso-lumbar vertebrae have no Fig. 336—DucKMOLE {Ornilhorhynchus aiiatimis).. (From Gould's Mammals of Australia.) epiphyses, or only traces of them. The cranial bones anky- lose early, obliterating all sutures,* and the rami of the mandible are free. There is an entepicondylar f
RMPG2NW2–. Elements of the comparative anatomy of vertebrates. Anatomy, Comparative. 28 COMPARATIVE ANATOMY Monotremes possess no teats, and the milk probably passes along the hairs, which in this region are arranged in bunches, and is then licked off by the young animal. The gland is compressed by a strong sphincter muscle. In Echidna, a mavimary or marsupial pouch which is primarily paired and becomes unpaired secondarily, is early formed for the reception of the young, and the gland-masses open into two depressions of the ventral integument where the bunches of hair are situated (Fig. 17). These dep
RMRDP0JN–. Outlines of zoology. Zoology. Fig. 2.—Phenacodus, a primitive extinct Mammal.—After Cope. (<r) Prolotheria, Ornithodelphia, or Monotremes — the egg-laying duckmole (Ornithorhynchus), Echidna, and Proechidna. Birds.—There can be no hesitation as to the class which ranks next to Mammals. For Birds are in most respects as highly developed as Mammals, though in a different direc- tion. They are character- ised by their feathers and wings, and many other adaptations for flight, by their high temperature, by the frequent spongi- ness and hollowness of their bones, by the tend- ency to fusion in
![. The mammary apparatus of the mammalia : in the light of ontogenesis and phylogenesis . Mammals; Mammary glands. DEVELOPMENT IN ECHIDNA 23 to do ontogenetically witli the specific organiza- tion of the manamary apparatus. When closure of the navel opening takes place a part of the body wall in the caudal portion of the incu-. se " -^"^ "^ . Fig. 8a.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Bresslau, Stock Photo](https://c8.alamy.com/comp/PG43EJ/the-mammary-apparatus-of-the-mammalia-in-the-light-of-ontogenesis-and-phylogenesis-mammals-mammary-glands-development-in-echidna-23-to-do-ontogenetically-witli-the-specific-organiza-tion-of-the-manamary-apparatus-when-closure-of-the-navel-opening-takes-place-a-part-of-the-body-wall-in-the-caudal-portion-of-the-incu-se-quot-quot-quot-fig-8a-please-note-that-these-images-are-extracted-from-scanned-page-images-that-may-have-been-digitally-enhanced-for-readability-coloration-and-appearance-of-these-illustrations-may-not-perfectly-resemble-the-original-work-bresslau-PG43EJ.jpg ". The mammary apparatus of the mammalia : in the light of ontogenesis and phylogenesis . Mammals; Mammary glands. DEVELOPMENT IN ECHIDNA 23 to do ontogenetically witli the specific organiza- tion of the manamary apparatus. When closure of the navel opening takes place a part of the body wall in the caudal portion of the incu-. se " -^"^ "^ . Fig. 8a.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Bresslau, Stock Photo")
RMPG43EJ–. The mammary apparatus of the mammalia : in the light of ontogenesis and phylogenesis . Mammals; Mammary glands. DEVELOPMENT IN ECHIDNA 23 to do ontogenetically witli the specific organiza- tion of the manamary apparatus. When closure of the navel opening takes place a part of the body wall in the caudal portion of the incu-. se " -^"^ "^ . Fig. 8a.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Bresslau,
RMRDMAWB–. The Cambridge natural history. Zoology. DASYURES I ; I is getting rarer on account of its sheep-killing propensities, and the consequent war of extermination declared upon it by the colonists. It will, however, feed upon other animals; and it is related that the first specimen ever captured had in its stomach the remains of an Echidna ! Mr. Thomas thinks that the persist- ence of this and of some of the other larger carnivorous jIarsu- pials in Tasmania after their extinction in Australia is not uncon- nected with the advent of the Dingo. But it is stated that the Thylacine is quite capable
RMPG43DX–. The mammary apparatus of the mammalia : in the light of ontogenesis and phylogenesis . Mammals; Mammary glands. 32 MAMMARY APPARATUS OP THE MAMMALIA are the first mammary formations which appear in the course of ontogeny in Echidna. These gland areas, it is true, arise very early in the indifferent form of the primary-primordia. The development of the incuhatorium falls in point of time between the first formation of the primary-primordia and their final evolution. Fig. 14.—Echidna: Semon's Embryo, Stage 53. with the appearance of the mammary glands. In contradistinction, then, to the views
RMRDKJG7–. Mammals of other lands;. Mammals. CHAPTER XXII MARSUPIALS AND MONOTREMES BY W. SAVILLE-KENT, F.L.S., F.Z.S. MARSUPIALS WITH the order of the Pouched Mammals we arrive — with the exception of the Echidna and Platypus, next described — at the most simply organised representatives of the Mammalian Class. In the two forms above named, egg-production, after the manner of birds and reptiles, constitutes the only method of propagation. Although among marsupials so rudimentary a method of reproduction is not met with, the young are brought into the world in a far more embryonic condition than occurs
![. The mammary apparatus of the mammalia : in the light of ontogenesis and phylogenesis . Mammals; Mammary glands. se " -^"^ "^ . Fig. 8a.. Fig. 8b Figs. 8a and 8b.—Echidna: Tkansverse Sections THROUGH THE PRIMARY-PRIMOEDIA OF A STILL Later Embryo (Semon's Embryo) in which the Epidermal Thickening is no longer Apparent, AND ONLY THE CUTIS THICKENING IS DISTINCT. batorial area remains connected with the bladder by means of the urachus, and is therefore exposed to a continual pull inwards, which is the more efEectual since the muscle-free area. Please note that these images are ex Stock Photo](https://c8.alamy.com/comp/PG43EE/the-mammary-apparatus-of-the-mammalia-in-the-light-of-ontogenesis-and-phylogenesis-mammals-mammary-glands-se-quot-quot-quot-fig-8a-fig-8b-figs-8a-and-8bechidna-tkansverse-sections-through-the-primary-primoedia-of-a-still-later-embryo-semons-embryo-in-which-the-epidermal-thickening-is-no-longer-apparent-and-only-the-cutis-thickening-is-distinct-batorial-area-remains-connected-with-the-bladder-by-means-of-the-urachus-and-is-therefore-exposed-to-a-continual-pull-inwards-which-is-the-more-efeectual-since-the-muscle-free-area-please-note-that-these-images-are-ex-PG43EE.jpg ". The mammary apparatus of the mammalia : in the light of ontogenesis and phylogenesis . Mammals; Mammary glands. se " -^"^ "^ . Fig. 8a.. Fig. 8b Figs. 8a and 8b.—Echidna: Tkansverse Sections THROUGH THE PRIMARY-PRIMOEDIA OF A STILL Later Embryo (Semon's Embryo) in which the Epidermal Thickening is no longer Apparent, AND ONLY THE CUTIS THICKENING IS DISTINCT. batorial area remains connected with the bladder by means of the urachus, and is therefore exposed to a continual pull inwards, which is the more efEectual since the muscle-free area. Please note that these images are ex Stock Photo")
RMPG43EE–. The mammary apparatus of the mammalia : in the light of ontogenesis and phylogenesis . Mammals; Mammary glands. se " -^"^ "^ . Fig. 8a.. Fig. 8b Figs. 8a and 8b.—Echidna: Tkansverse Sections THROUGH THE PRIMARY-PRIMOEDIA OF A STILL Later Embryo (Semon's Embryo) in which the Epidermal Thickening is no longer Apparent, AND ONLY THE CUTIS THICKENING IS DISTINCT. batorial area remains connected with the bladder by means of the urachus, and is therefore exposed to a continual pull inwards, which is the more efEectual since the muscle-free area. Please note that these images are ex
RMRE09AF–. Zoology for high schools and colleges. Zoology. 562 ZOOLOGY. they are sometimes called Cavicorns. In most horned mammals, the horns are persistent; in the deer they are dropped annually ; in the prong-horned antelope (Fig. 487) the horns are also shed annually. The mammary glands are modiiications of the tegument- ary glands which are found in all vertebrates except fishes. In the duckbill and spiny ant-eater (Echidna), these glands retain their simple elementary nature. In all others nip- ples are developed (Fig. 486). They correspond in general to the number of young in a litter. The denti
RMPG1G51–. Zoology : for students and general readers . Zoology. 562 ZOOLOGY. they are sometimes called Cavicorns. In most horned mammals, the horns are persistent; in the deer they are dropped annually ; in the prong-horned antelope (Fig. 487) the horns are also shed annually. The mammary glands are modifications of the tegument- ary glands which are found in all vertebrates except fishes. In the duckbill and spiny ant-eater {Echidna), these glands retain their simple elementary nature. In all others nip- ples are develoj)ed (Fig. 486). They correspond in general to the number of young in a litter. Th
RMRDKKYA–. A manual of zoology for the use of students : with a general introduction on the principles of zoology . Zoology. 528 MANUAL OF ZOOLOGY. thorhynchus and Echidna—the one represented by a single species {O. paradoxus), and the other by two species {E. hystrix and E. seiosa). All are exclusively confined to Aus- tralia and Tasmania. The Ornithorhynchus'01 Duck-mole is one of the most ex- traordinary of Mammals. The body (fig. 203) resembles that of a mole or small otter, and is covered with a close, short, brown fur. The tail is broad and flattened. The jaws are produced to form a beak just lik
RMPG43ED–. The mammary apparatus of the mammalia : in the light of ontogenesis and phylogenesis . Mammals; Mammary glands. 24 MAMMARY APPAKATUS OF THE MAMMALIA. Fig. 9.—Echidna: Semon's Embkyo No. 7. Trans- verse Section through the Primary-Primordia OF A Young One shortly after Hatching. These are indicated by Crosses.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Bresslau, E. (Ernst), 1877-; Hill, James Peter, 1873-1954. London
RMRDEEJM–. The mammary apparatus of the mammalia : in the light of ontogenesis and phylogenesis . Mammals; Mammary glands. INCUBATORIUM OF ECHIDNA 5 of the abdomen from that of Echidna, In the case of Echidna, the cutaneous muscle, which covers nearly the whole surface of. Fig. 1.—Echidna: Ventral View of a Brooding Female, showing the so-called Incubatorium SOMEWHAT ENLARGED. (HaAGKE.) -r-!- The two tufts of hair in the lateral folds of the mammary pouch (6.771.), from which the secretion flows ; cl., cloaca. the trunk, leaves free an oval area of the abdominal wall, situated between the two mammary g
![. The mammary apparatus of the mammalia : in the light of ontogenesis and phylogenesis . Mammals; Mammary glands. DEVELOPMENT IN MAESUPIALIA 57 perhaps six days old. Upon examining the sections of the region of the trunk, which probably contained the primordia of the mam- mary apparatus, I at once saw that here exactly the same primary-primordia were present as. Fig. 19b.—Transverse Section of Six-Days-Old Embryo of "Didelphys maksupialis." ma, Primary-primordia of mammary apparatus; sm, primordium o( trunk musculature. exist in Echidna—viz., little circumscribed areas of the abdomin Stock Photo](https://c8.alamy.com/comp/PG43DC/the-mammary-apparatus-of-the-mammalia-in-the-light-of-ontogenesis-and-phylogenesis-mammals-mammary-glands-development-in-maesupialia-57-perhaps-six-days-old-upon-examining-the-sections-of-the-region-of-the-trunk-which-probably-contained-the-primordia-of-the-mam-mary-apparatus-i-at-once-saw-that-here-exactly-the-same-primary-primordia-were-present-as-fig-19btransverse-section-of-six-days-old-embryo-of-quotdidelphys-maksupialisquot-ma-primary-primordia-of-mammary-apparatus-sm-primordium-o-trunk-musculature-exist-in-echidnaviz-little-circumscribed-areas-of-the-abdomin-PG43DC.jpg ". The mammary apparatus of the mammalia : in the light of ontogenesis and phylogenesis . Mammals; Mammary glands. DEVELOPMENT IN MAESUPIALIA 57 perhaps six days old. Upon examining the sections of the region of the trunk, which probably contained the primordia of the mam- mary apparatus, I at once saw that here exactly the same primary-primordia were present as. Fig. 19b.—Transverse Section of Six-Days-Old Embryo of "Didelphys maksupialis." ma, Primary-primordia of mammary apparatus; sm, primordium o( trunk musculature. exist in Echidna—viz., little circumscribed areas of the abdomin Stock Photo")
RMPG43DC–. The mammary apparatus of the mammalia : in the light of ontogenesis and phylogenesis . Mammals; Mammary glands. DEVELOPMENT IN MAESUPIALIA 57 perhaps six days old. Upon examining the sections of the region of the trunk, which probably contained the primordia of the mam- mary apparatus, I at once saw that here exactly the same primary-primordia were present as. Fig. 19b.—Transverse Section of Six-Days-Old Embryo of "Didelphys maksupialis." ma, Primary-primordia of mammary apparatus; sm, primordium o( trunk musculature. exist in Echidna—viz., little circumscribed areas of the abdomin
RMRDX921–. Natural history. Zoology. EGG-LAYING MAMMALS. 217 ;.v«JJ. /'iy. 117.—¥ivE-T0ED Echidna (Echidna aculeata). south-eastern New Guinea to Australia and Tasmania, while the second is exclusively Papuan. All the echidnas have stout and depressed bodies, which when the creatures are in repose rest flat on the ground, although in walking the legs raise the body some distance above the surface. In the typical genus of which there appears to be only one very variable specific representative (Echidna aculeata), the wbole of the five digits of each foot are furnished with claws, which in the fore-feet
RMPG43ER–. The mammary apparatus of the mammalia : in the light of ontogenesis and phylogenesis . Mammals; Mammary glands. DEVELOPMENT IN ECHIDNA 21 cutis part of the primordia is well marked owing to its condensed character and the presence of numerous capillaries (Figs. 8a and 8b). The general topographic features, especially those of the skin muscle, remain unaltered. Whilst the primary-primordia long persist in this condition, soon after birth other differen-. FiG. 7c.—^Echidna: Transverse Section or Semon's Embryo, showing the Primary-Primokdia when IT FORMS A Lens-shaped Projection on the Surface
RMRE06CF–. Outlines of zoology. Zoology. 684 MAMMALIA. Strong spines occur thickly in Echidna, more sparsely in Proechidna among the hairs. The snout is prolonged into a slender tube. The limbs bear five toes, two of which in Proechidna are often without claws and somewhat rudimentary. In Echidna^ the eggs seem to be hatched in a temporarily developed pouch. Sub-class Metatheria or Didelphia,—Order Marsupialia. With the exception of the N. American opossums, all the Marsupials now alive are natives of Australasia. But fossil remains found in Europe and America show that they once had a wide range. As t
![. The mammary apparatus of the mammalia : in the light of ontogenesis and phylogenesis . Mammals; Mammary glands. 16 MAMMARY APPARATUS OF THE MAMMALIA I was able to show that it begins much earlier, in embryos considerably before the time of hatching. Fig. 5 is a drawing of Semon's embryo 42, ma^ hm -. "am -hm -sm Fig. 6a.—Echidna: Transvekse Section of Semon's Embryo, showing the Primary-Primordia. ma, Primary-primordia ; Am, beginning of the skin muscle. in which I noticed the first primordia of the mammary apparatus. I received the embryo cut in transverse sections, and, on examining Stock Photo](https://c8.alamy.com/comp/PG43F5/the-mammary-apparatus-of-the-mammalia-in-the-light-of-ontogenesis-and-phylogenesis-mammals-mammary-glands-16-mammary-apparatus-of-the-mammalia-i-was-able-to-show-that-it-begins-much-earlier-in-embryos-considerably-before-the-time-of-hatching-fig-5-is-a-drawing-of-semons-embryo-42-ma-hm-quotam-hm-sm-fig-6aechidna-transvekse-section-of-semons-embryo-showing-the-primary-primordia-ma-primary-primordia-am-beginning-of-the-skin-muscle-in-which-i-noticed-the-first-primordia-of-the-mammary-apparatus-i-received-the-embryo-cut-in-transverse-sections-and-on-examining-PG43F5.jpg ". The mammary apparatus of the mammalia : in the light of ontogenesis and phylogenesis . Mammals; Mammary glands. 16 MAMMARY APPARATUS OF THE MAMMALIA I was able to show that it begins much earlier, in embryos considerably before the time of hatching. Fig. 5 is a drawing of Semon's embryo 42, ma^ hm -. "am -hm -sm Fig. 6a.—Echidna: Transvekse Section of Semon's Embryo, showing the Primary-Primordia. ma, Primary-primordia ; Am, beginning of the skin muscle. in which I noticed the first primordia of the mammary apparatus. I received the embryo cut in transverse sections, and, on examining Stock Photo")
RMPG43F5–. The mammary apparatus of the mammalia : in the light of ontogenesis and phylogenesis . Mammals; Mammary glands. 16 MAMMARY APPARATUS OF THE MAMMALIA I was able to show that it begins much earlier, in embryos considerably before the time of hatching. Fig. 5 is a drawing of Semon's embryo 42, ma^ hm -. "am -hm -sm Fig. 6a.—Echidna: Transvekse Section of Semon's Embryo, showing the Primary-Primordia. ma, Primary-primordia ; Am, beginning of the skin muscle. in which I noticed the first primordia of the mammary apparatus. I received the embryo cut in transverse sections, and, on examining
RMRE099N–. Zoology for high schools and colleges. Zoology. 573 ZOOLOGY. the cloaca, as in birds. The sternum is provided with a pecu- liar T-shaped bone, and there are important features in the. brain separating them from the members of the higher sub- classes. Echidna lays large eggs, 3 cm. long, placing them. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Packard, A. S. (Alpheus Spring), 1839-1905. New York, H. Holt and Company
RMPG43F9–. The mammary apparatus of the mammalia : in the light of ontogenesis and phylogenesis . Mammals; Mammary glands. DEVELOPMENT IN ECHIDNA 15 mammary apparatus, thus refuting Ruge's views. Let me now sketcli the actual stages in the development of the mammary apparatus in aur. ma Fig. 5.—Echidna: Semon's Embryo, Stage 42. VM, Primai-y-primordium ; aur, beginnings of the outer ear. Echidna so far as I could observe them in the material at my disposal. Whereas Klaatsch and Ruge believed that the development of the mammary apparatus began only after the hatching of the young,. Please note that thes
RMRDMMEB–. Text-book of zoology for junior students. Zoology. OliDEIlS OF MAMMALIA. 321 have a spur on the hind-lega. Tlie cmly known species i.i the Orni- thorhynclius paradoxiu. The other genus of Monotrcmes comprises the Spiny Ant-eaters {Echidna or Tachyglossus), whicli are not unlike large hedgehogs in appearance. The snout is very long, and is enclosed in a continuous skin till close upon its extremity, where there is a small aperture for the protrusion of a long and flexible tongue. Thei-e are no teeth, or any organs to act as teeth. The feet have five toes each, and are. Fig. 227.-Monotrfmata.
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