Batrachoseps pacificus — Overview

Channel Islands Slender Salamander learn more about names for this taxon

IUCN threat status:

Least Concern (LC)

Comprehensive Description

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Description

This is one of the largest species of the genus and reaches nearly 70 mm in snout vent length (up to 130 mm total length). It is relatively robust for this genus and has a broad head and long limbs. Eyes are relatively large and protuberantThere are 18 20 costal grooves, and 5.5 to 8 intercostal folds are left uncovered when the limbs are appressed to the body. The tail is relatively short for the genus and often does not exceed snout-vent length. Hands and feet are moderately large for the genus, and have four digits each. The coloration is generally dark gray to gray black with a subdued dorsal stripe that is more prominent in smaller individuals. There are some yellow to yellow-green highlights in the dorsal stripe of some individuals but usually there is little color other than grays and browns. The venter is significantly paler than the dorsum. There are small white speckles along the sides but they are not prominent.

Until recently populations from the mainland were included as subspecies of this species, but recent biochemical work (Wake and Jockusch 2000) combined with earliler morphological analyses (Brame and Murray 1968) have led to changes in classification and the species now is restricted to the northern Channel Islands. A population refered to B. nigriventris is sympatric with this species on Santa Cruz Island.

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