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.
RMAE6NFG–Santa Cruz garter snake Thamnophis atratus atratus in the Santa Cruz Mountains California
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
RM2C3XBRF–An unusual blue aquatic gartersnake (Thamnophis atratus) from Northern California
RM2C3XB9H–An aquatic garter snake (Thamnophis atratus) from a river in Northern California.
RMW7XX0F–Pacific Coast Aquatic Garter Snake (Thamnophis atratus atratus) Point Reyes, California, USA, April.
RMATC8MA–Santa Cruz garter snake Thamnophis atratus atratus Santa Cruz Mountains California USA
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
RM2C3XC8N–An aquatic garter snake (Thamnophis atratus) from a river in Northern California.