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RM2EX4078–Oregon Aquatic Garter Snake (Thamnophis atratus atratus) clear lake, McKenzie River, Oregon.
RFRCWAG9–Garter snake (Thamnophis atratus zaxanthus) basking in the sun on a hot day, San Francisco bay, California
RMW7XX0E–Pacific Coast Aquatic Garter Snake (Thamnophis atratus atratus) Point Reyes, California, USA, April.
RFKH0HFA–Diablo Range Gartersnake (Thamnophis atratus zaxanthus) from Contra Costa County, California, USA.
RMRH020A–. Bulletin. Science; Natural history; Natural history. 74 SOUTHERN CALIFORNIA ACADEMY OF SCIENCES. Collections Key T. e.terrestris • T. c.otratus o both species o Fig. 1. Distribution of Thamnophis elegans terrestris (diagonal lines), T. couchii alratus (horizon- tal lines), and T. c. hammondii (vertical lines) in California. Collection sites are indicated for T. e. terrestris and T. c. atratus.. 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
RMW7XX0F–Pacific Coast Aquatic Garter Snake (Thamnophis atratus atratus) Point Reyes, California, USA, April.
RMRH01YA–. Bulletin. Science; Natural history; Natural history. DIAGNOSTIC CHARACTERS OF GARTER SNAKES 79. -2-10 1 2 3 4 5 Fig. 3. Canonical graph showing spatial relationships among 38 snakes as determined by discrimi- nant analysis of 14 mensural and meristic characters. C^ indicates Thamnophis coiichii atratus and (D indicates T. eleguns lerrestris. as terrestris on the basis of electrophoretic results and color pattern. Re- measuring showed the original morphological data to be accurate, and the snake was found to have a rather narrow pointed snout as well as 19 thoracic scale rows, both of which a
RMW7XX0H–Pacific Coast Aquatic Garter Snake (Thamnophis atratus atratus) Point Reyes, California, USA, April.
RMA6H19J–Santa Cruz Garter Snake Thamnophis atratus atratus single striped form from San Francisco County California
RMAE6NJG–Santa Cruz garter snake, Thamnophis atratus atratus, in the Santa Cruz Mountains, California.
RM2F9HGT4–The Santa Cruz gartersnake (Thamnophis atratus atratus) an bay area endemic subspecies of the aquatic gartersnake in California.
RMA6H19G–Santa Cruz Garter Snake Thamnophis atratus atratus single striped form from San Francisco County California
RMAE6NDR–Santa Cruz garter snake Thamnophis atratus atratus swimming in a pond in the Santa Cruz Mountains California
RMW7PJ94–Santa Cruz Garter Snake (Thamnophis atratus), on rock by moving water. Half Moon Bay, California, November.
RM2F9HGRX–The Santa Cruz gartersnake (Thamnophis atratus atratus) an bay area endemic subspecies of the aquatic gartersnake in California.
RMA6H19W–Santa Cruz Garter Snake Thamnophis atratus atratus single striped form from San Francisco County California
RMAE6NBH–Santa Cruz garter snake Thamnophis atratus atratus swimming in a pond in the Santa Cruz Mountains California
RMW7PJ95–Santa Cruz Garter Snake (Thamnophis atratus), by stream. Half Moon Bay, California, November.
RM2F9HGY3–The Santa Cruz gartersnake (Thamnophis atratus atratus) an bay area endemic subspecies of the aquatic gartersnake in California.
RM2G7PY7T–An aquatic gartersnake (Thamnophis atratus) a harmless nonvenomous snake in a river in Northern California, USA.
RMA6H19N–Santa Cruz Garter Snake Thamnophis atratus atratus single striped form from San Francisco County California
RM2F9HGYB–A close up macro image of the keeled scales of a Santa Cruz gartersnake (Thamnophis atratus atratus), a reptile endemic to the bay area of California.
RMW7PJ91–Santa Cruz Garter Snake (Thamnophis atratus), detail of head. Half Moon Bay, California, November.
RM2JCBE6M–Diablo Range Gartersnake (Thamnophis atratus zaxanthus). The snake is near a pond in the San Francisco bay region of California, USA.
RM2D4Y645–Diablo Range Gartersnake (Thamnophis atratus zaxanthus) a subspecies of garter snake endemic to the Diablo range in the Bay area of California.
RMA6H19M–Santa Cruz Garter Snake Thamnophis atratus atratus single striped form from San Francisco County California
RM2D4Y64A–Diablo Range Gartersnake (Thamnophis atratus zaxanthus) a subspecies of garter snake endemic to the Diablo range in the Bay area of California.
RMA6H19R–Santa Cruz Garter Snake Thamnophis atratus atratus single striped form from San Francisco County California
