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Cirripedia Black & White Stock Photos
RMG16EEW–Sacculina is a genus of barnacles that is a parasitic castrator of crabs. They are recognized as barnacles because their larval forms are like other members of the barnacle class Cirripedia. The female Sacculina larva finds a crab and walks on it until it
RMMMWXKJ–. English: Protoelepas and Balanus, in a plate from Charles Darwin's Monograph on the Cirripedia, 1854, engraved by George Brettingham Sowerby, Jr. . 1854. Charles Darwin; George Brettingham Sowerby Jr Darwin's barnacles Proteolepas and Balanus
RM2ABXYY3–Screw-propelled Cunarders. Chinese Music. ovules larval or cirripedia that seek to attach them selves Photometer. be utilized which are available for scientific investiga tions; and finally measurements could be taken by Power Production of the Future. Americus Ga., scientific american, 1906-01-27
RF2KDYXN5–Close up macro of Percebes or goose neck barnacle seafood in monochrome, also known as Lucifer's Fingers
RMRDKH86–. The Cambridge natural history. Zoology. 94 CRUSTACEA—CIRRIPEDIA very much in the state characteristic of the Cyj^ris larvae of other Cirripedes, being furnished with two terminal hooks by which attachment is effected. The thoracic appendages, of which there are the normal number six, are reduced flabellate structures, and the abdomen forms an indefinitely segmented lolie of consider- able size. The animal appears to be in an arrested state of dcAelopment, and so retains some of the characteristics of the Cypris larvae, but it is very doubtful how far these characters can be considered primit
RMPG3YGD–. A manual of zoology. Zoology. I. CRUSTACEA: CIRRIPEDIA 371 Sub Class IV. Ostracoda. Like the Cladocera and the Estheriidoe the Ostracoda are enclosed in a bivalve shell, which, when closed, includes not only the body but the head and appendages as well, these being protruded when the shell is opened. The valves are closed by an adductor muscle, opened l^y a hinge ligament like that of lamellibranchs. This resemblance to the molluscs is heightened by lines of growth upon the shell. The antennae.. Fig. 3S9.—Cypris fasciatus, adult female (after Claus). I-IV, appendages; c, furca; e, eye; I, li
RF2KDYXN3–Close up macro of Percebes or goose neck barnacle seafood in monochrome, also known as Lucifer's Fingers
RMRDKH4A–. The Cambridge natural history. Zoology. I30 CRUSTACEA—^PERACARIDA male, and upon which the female organisation is imposed as the parasitic hahit is assumed. The following is a list of the Epicarida with the Crustacea which serve as their hosts ':— 'Microiiiscidae on Copepoda. Cryptonisoidae on Ostracoda. Liriopsidae on Rliizocephala. Cryptoniscina- Hemioniscidae on Cirripedia. Cabiropsidae on Isopoda. Podasconidae on Aniphipoda. ^Asconiscidae on Schizopoda, 'Dajidae -„ . Pliryxidae Bopynna - ^^^^.^-^^^ on Decapoda. Entoniscidae |. In all cases the first larval form which hatches out from t
RMPG3YG0–. A manual of zoology. Zoology. I. CRUSTACEA: CIRRIPEDIA 373 with few exceptions, in contrast to most otlier arthropods, are hermaphro- ditic, a condition possibly correlated with their sedentary life and the con- sequent need of self-impregnation. The testes lie in the sides of the body; the ovaries in the Lepadids are in the stalk, in the Balanids in the basal plate. In cases of several solitary hemaphrodite species complementary dwarf males occur. These are very small, purely male forms, with ex- tremely simple structure (fig. 392), which live inside the mantle cavity near the genital openi
![. Text-book of embryology. Embryology. VIII AETHEOPODA 201 forked nature and swimming function of the second antenna, so that in their case the " critical" character of the moult is reduced to the loss of the distal joints of the mandible. The Cirripedia also begin their free life as Nauplius larvae, which in all essentials, and even in such minute points as the many-jointed exopodite and feebly-jointed endopodite, agree with the larvae of Cyclops. They differ in the development of the dorsal integument into a great triangular shield, with two antero-dorsal horns, the dorso-lateral s Stock Photo](https://c8.alamy.com/comp/RDHFDA/text-book-of-embryology-embryology-viii-aetheopoda-201-forked-nature-and-swimming-function-of-the-second-antenna-so-that-in-their-case-the-quot-criticalquot-character-of-the-moult-is-reduced-to-the-loss-of-the-distal-joints-of-the-mandible-the-cirripedia-also-begin-their-free-life-as-nauplius-larvae-which-in-all-essentials-and-even-in-such-minute-points-as-the-many-jointed-exopodite-and-feebly-jointed-endopodite-agree-with-the-larvae-of-cyclops-they-differ-in-the-development-of-the-dorsal-integument-into-a-great-triangular-shield-with-two-antero-dorsal-horns-the-dorso-lateral-s-RDHFDA.jpg ". Text-book of embryology. Embryology. VIII AETHEOPODA 201 forked nature and swimming function of the second antenna, so that in their case the " critical" character of the moult is reduced to the loss of the distal joints of the mandible. The Cirripedia also begin their free life as Nauplius larvae, which in all essentials, and even in such minute points as the many-jointed exopodite and feebly-jointed endopodite, agree with the larvae of Cyclops. They differ in the development of the dorsal integument into a great triangular shield, with two antero-dorsal horns, the dorso-lateral s Stock Photo")
RMRDHFDA–. Text-book of embryology. Embryology. VIII AETHEOPODA 201 forked nature and swimming function of the second antenna, so that in their case the " critical" character of the moult is reduced to the loss of the distal joints of the mandible. The Cirripedia also begin their free life as Nauplius larvae, which in all essentials, and even in such minute points as the many-jointed exopodite and feebly-jointed endopodite, agree with the larvae of Cyclops. They differ in the development of the dorsal integument into a great triangular shield, with two antero-dorsal horns, the dorso-lateral s
RMRDT8TB–. Fourteen weeks in zoology. Zoology. LemtBonlma epratti. Sprat-sucker, attached to eye of Sprat. Baldmm crenatm, Acorn Barnacle. ORDER CIRRIPEDIA. General Characteristics.—The Cirripeds (curl-footed) in their early stages have eyes, antennae, and limbs. After swimming about for a while they attach themselves to any solid substance, the eyes become rudimentary and the antennae obsolete. The thoracic feet by constant motion create currents of water which float food to the animal's mouth. Balanidae,—The Acorn Barnacle is sessile, the shell. Please note that these images are extracted from scanne
![. The transformations (or metamorphoses) of insects. Insects; Insects; Myriapoda; Arachnida; Crustacea. THE CIRRIPEDIA. 471 Lepas, and their absence may be remarked in many instances. They are enclosed within the cavity formed *by the white looking shell, which, however, in Nature is occasionally coloured with a blue and even purple tint. When a sessile barnacle is examined—and they can readily be kept in the aquarium—the cirri will be seen to project through a trap-door apparatus called the '' operculum," or lid of the shell. The shell is made up of five or more side pieces connected tog Stock Photo](https://c8.alamy.com/comp/RR1WNR/the-transformations-or-metamorphoses-of-insects-insects-insects-myriapoda-arachnida-crustacea-the-cirripedia-471-lepas-and-their-absence-may-be-remarked-in-many-instances-they-are-enclosed-within-the-cavity-formed-by-the-white-looking-shell-which-however-in-nature-is-occasionally-coloured-with-a-blue-and-even-purple-tint-when-a-sessile-barnacle-is-examinedand-they-can-readily-be-kept-in-the-aquariumthe-cirri-will-be-seen-to-project-through-a-trap-door-apparatus-called-the-operculumquot-or-lid-of-the-shell-the-shell-is-made-up-of-five-or-more-side-pieces-connected-tog-RR1WNR.jpg ". The transformations (or metamorphoses) of insects. Insects; Insects; Myriapoda; Arachnida; Crustacea. THE CIRRIPEDIA. 471 Lepas, and their absence may be remarked in many instances. They are enclosed within the cavity formed *by the white looking shell, which, however, in Nature is occasionally coloured with a blue and even purple tint. When a sessile barnacle is examined—and they can readily be kept in the aquarium—the cirri will be seen to project through a trap-door apparatus called the '' operculum," or lid of the shell. The shell is made up of five or more side pieces connected tog Stock Photo")
RMRR1WNR–. The transformations (or metamorphoses) of insects. Insects; Insects; Myriapoda; Arachnida; Crustacea. THE CIRRIPEDIA. 471 Lepas, and their absence may be remarked in many instances. They are enclosed within the cavity formed *by the white looking shell, which, however, in Nature is occasionally coloured with a blue and even purple tint. When a sessile barnacle is examined—and they can readily be kept in the aquarium—the cirri will be seen to project through a trap-door apparatus called the '' operculum," or lid of the shell. The shell is made up of five or more side pieces connected tog
RMRDX832–. Natural history. Zoology. 532 CRUSTACEA—ORDERS COPEPODA AND CIRRIPEDIA. Drqjihniidd', or water-fleas are small Crndacea whicli abound in fresh water. They are of a compressed oval form, and are partly covered by a thin, trans- parent bivalve shell. The first pair of aiitennce is small, but the second very large, bifid at the extremity, and set with long hairs, which serve as the principal organs of locomotion. The eyes are fused into one large one, near which is often another small one. They have from four to six pairs of swimming legs. They are very favourite objects with microscopists, bei
![. The Cambridge natural history. Zoology. go CRUSTACEA CIRRIPEDIA as the hard sharp objects which cover rocks and piles near high- water mark on every sea-coast. If we examine the hard slceleton of one of these animals, we find that, unlike the Pedunculata, they possess no stalk, the capitulum being fused on to the surface of attachment by a broad basal disc. Typically, there may be considered to be eight skeletal pieces forming the outer ring which invests the soft parts of the animal, an unpaired rostrum and carina, and laterally a pair of rostro - lateral, lateral, and carino-lateral " Stock Photo](https://c8.alamy.com/comp/RDKH8P/the-cambridge-natural-history-zoology-go-crustacea-cirripedia-as-the-hard-sharp-objects-which-cover-rocks-and-piles-near-high-water-mark-on-every-sea-coast-if-we-examine-the-hard-slceleton-of-one-of-these-animals-we-find-that-unlike-the-pedunculata-they-possess-no-stalk-the-capitulum-being-fused-on-to-the-surface-of-attachment-by-a-broad-basal-disc-typically-there-may-be-considered-to-be-eight-skeletal-pieces-forming-the-outer-ring-which-invests-the-soft-parts-of-the-animal-an-unpaired-rostrum-and-carina-and-laterally-a-pair-of-rostro-lateral-lateral-and-carino-lateral-quot-RDKH8P.jpg ". The Cambridge natural history. Zoology. go CRUSTACEA CIRRIPEDIA as the hard sharp objects which cover rocks and piles near high- water mark on every sea-coast. If we examine the hard slceleton of one of these animals, we find that, unlike the Pedunculata, they possess no stalk, the capitulum being fused on to the surface of attachment by a broad basal disc. Typically, there may be considered to be eight skeletal pieces forming the outer ring which invests the soft parts of the animal, an unpaired rostrum and carina, and laterally a pair of rostro - lateral, lateral, and carino-lateral " Stock Photo")
RMRDKH8P–. The Cambridge natural history. Zoology. go CRUSTACEA CIRRIPEDIA as the hard sharp objects which cover rocks and piles near high- water mark on every sea-coast. If we examine the hard slceleton of one of these animals, we find that, unlike the Pedunculata, they possess no stalk, the capitulum being fused on to the surface of attachment by a broad basal disc. Typically, there may be considered to be eight skeletal pieces forming the outer ring which invests the soft parts of the animal, an unpaired rostrum and carina, and laterally a pair of rostro - lateral, lateral, and carino-lateral "
RMRDX82W–. Natural history. Zoology. BARNACLES. 533. Fifj. 6.—Acorn Barnacle (^Btilaiuis halanoides). Nat. size. Order IV.—Cireipedia. By recent authors the Cirripedia have been treated as a section of the Crustacea, from which, however, they differ so much when adult, that they were formerly regarded as a separate class. In their perfect state they are fixed immov- ably by their heads to a rock, or some other object submerged in the sea, and are without antennae, eyes, or any means of loco- motion. Their bodies are enclosed more or less completely in a calcareous shell, formed of several parts, which
![. The Cambridge natural history. Zoology. 98 CRUSTACEA CIRRIPEDIA CHAP. of the crab's intestine, at the abdomen, all the adult organs are the whole structure is surrounded by invagination known as the The young " Scwculina interna " some time, and being applied to of the crab just at the point wheri unction between thorax and laid down in miniature, and by an additional sac formed perivisceral space (Fig. 70). remains in this position for the ventral abdominal tissues e thorax and abdomen join, or. Fig. 69.—The raid-gut of Inachus OYUxwitanicits with a young Saccu- ^ma overlying it, Stock Photo](https://c8.alamy.com/comp/RDKH6P/the-cambridge-natural-history-zoology-98-crustacea-cirripedia-chap-of-the-crabs-intestine-at-the-abdomen-all-the-adult-organs-are-the-whole-structure-is-surrounded-by-invagination-known-as-the-the-young-quot-scwculina-interna-quot-some-time-and-being-applied-to-of-the-crab-just-at-the-point-wheri-unction-between-thorax-and-laid-down-in-miniature-and-by-an-additional-sac-formed-perivisceral-space-fig-70-remains-in-this-position-for-the-ventral-abdominal-tissues-e-thorax-and-abdomen-join-or-fig-69the-raid-gut-of-inachus-oyuxwitanicits-with-a-young-saccu-ma-overlying-it-RDKH6P.jpg ". The Cambridge natural history. Zoology. 98 CRUSTACEA CIRRIPEDIA CHAP. of the crab's intestine, at the abdomen, all the adult organs are the whole structure is surrounded by invagination known as the The young " Scwculina interna " some time, and being applied to of the crab just at the point wheri unction between thorax and laid down in miniature, and by an additional sac formed perivisceral space (Fig. 70). remains in this position for the ventral abdominal tissues e thorax and abdomen join, or. Fig. 69.—The raid-gut of Inachus OYUxwitanicits with a young Saccu- ^ma overlying it, Stock Photo")
RMRDKH6P–. The Cambridge natural history. Zoology. 98 CRUSTACEA CIRRIPEDIA CHAP. of the crab's intestine, at the abdomen, all the adult organs are the whole structure is surrounded by invagination known as the The young " Scwculina interna " some time, and being applied to of the crab just at the point wheri unction between thorax and laid down in miniature, and by an additional sac formed perivisceral space (Fig. 70). remains in this position for the ventral abdominal tissues e thorax and abdomen join, or. Fig. 69.—The raid-gut of Inachus OYUxwitanicits with a young Saccu- ^ma overlying it,
RMRDJF3J–. A manual of zoology. Zoology. I. CRUSTACEA: CIRRIPEDIA 373 with few exceptions, in contrast to most otlier arthropods, are hermaphro- ditic, a condition possibly correlated with their sedentary life and the con- sequent need of self-impregnation. The testes lie in the sides of the body; the ovaries in the Lepadids are in the stalk, in the Balanids in the basal plate. In cases of several solitary hemaphrodite species complementary dwarf males occur. These are very small, purely male forms, with ex- tremely simple structure (fig. 392), which live inside the mantle cavity near the genital openi
RMRDT2D5–. Principles of economic zoo?logy. Zoology, Economic. CRUSTACEA 91 antennules are also provided with olfactory hairs. Many of this order are marine. Some, however, live in brackish or in fresh water. They live usually at the bottom of their aquatic habitat. Order III. Copep'oda.—As examples may be named para- sitic fish lice and the fresh-water cyclops. Respiration takes place over the entire body surface. The Cyclops (Fig. 65) is a small, white, shelless animal with elongated segmented body. It has a rather large eye in the center of its head. Order IV. Cirripe'dia or Barnacles. —These fixed,
RMRE3NDE–. Text book of zoology. Zoology. Sab-Class 1. Entomostraca. Order 7. Cirripedia. 207 peduncle; the tlu-eads of the anterior region twine round the internal organs of the host, and absorb food by endosmosis; they are comparable, both in general appearance and in function, with the roots of a plant. The saccular part is covered by a soft mantle; the mantle cavity, in which the eggs are retained, communicates with the exterior only by a small aperture. Digestive tract and limbsai-e altogether wanting. The Rhizocephala undergo a, metamorphosis. Fig. 169. A Ehizo- cephalon (SaccuUna), 3, on the ven
RMRDJF45–. A manual of zoology. Zoology. I. CRUSTACEA: CIRRIPEDIA 371 Sub Class IV. Ostracoda. Like the Cladocera and the Estheriidoe the Ostracoda are enclosed in a bivalve shell, which, when closed, includes not only the body but the head and appendages as well, these being protruded when the shell is opened. The valves are closed by an adductor muscle, opened l^y a hinge ligament like that of lamellibranchs. This resemblance to the molluscs is heightened by lines of growth upon the shell. The antennae.. Fig. 3S9.—Cypris fasciatus, adult female (after Claus). I-IV, appendages; c, furca; e, eye; I, li
RMRDKY2J–. The Cambridge natural history. Zoology. 88 CRUSTACEA CIRRIPEDIA. c Fig. 57.—Conchodenna vir- gata, x 1. C, Carina; S, scutum ; T, tergurn. (After Darwin.) of them, e.g. Oxy^iaspis, live at considerable depths attached to -J- corals, etc., but large numbers Heat on the surface of the sea, fixed often on logs and wreckage of various kinds. Dichelaspis is found attached to the shells of large Crustacea. Conchoderma is an interesting genus, the species of which live affixed to various floating objects, the keels of ships, etc. ; the mautle is often brilliantly coloured, as in C. rirgata, and the
RMRDTDK5–. Zoology. Zoology. 86 ZOOLOGY. Order 1. Cirripedia.—The barnacles would, at a first glance, liardly be I'egardcd as Ci'ustacea at all, so much modified is the form, owing to their fixed, parasitic mode of life. Tlie barnacle is, as in the common sessile form (Fig. 100), a shell-like animal, the shell composed of sev- eral pieces, with a conical movable lid, having an opening through which several pairs of long, many-jointed, hairy ap- pendages are thrust, thus cre- ating a current which sets in towards the mouth. The com- mon barnacle {Balanus lalanoi- des) abounds on every rocky shore from e
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