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Thamnophis sirtalis fitchi (Valley Gartersnake). Coloration.

Herpetological Review
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Abstract

During surveys for Thamnophis gigas (Giant Gartersnake), I observed an adult T. sirtalis fitchi with unusual coloration— a yellow-cream background color with some typical red coloration laterally, but with very minimal amounts of the dark slate-black (along the sides of the yellow dorsal stripe and on top of the head) that normally predominates in this subspecies (Fig. 1; LACM [Natural History Museum of Los Angeles County] PC 2339, photo voucher). The snake was captured in a modified minnow trap on 21 May 2017, in Sutter County, Sacramento Valley, California, USA. Prior to this capture, our survey crew made two sightings of similarly marked T. s. fitchi at the same field location, and another snake with similar markings was captured at a nearby field location on 13 May 2016 (LACM PC 2341, photo voucher).

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Thamnophis sirtalis fitchi (Valley Gartersnake). Coloration.
Series title Herpetological Review
Volume 49
Issue 2
Year Published 2018
Language English
Publisher Society for the Study of Amphibians and Reptiles
Contributing office(s) Western Ecological Research Center
Description 1 p.
First page 358
Last page 358
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