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no. 16] amphibians of western north america 59
Measurements of 6
Specimens in the Collection of the
Caufornia Academy of Sciences
Snout to anus 43 43 47 53 53 60
Front of anus to end of
tail 36 38 42 47 45 56
Width of head 6 6% 7 8 8 9
Nostril to orbit 2 2 2 2 2 2
Snout to orbit 2^^ 3 4 4 4 4
Snout to gular fold 10 10 11 12 12 13
Snout to fore limb 14 13 15 15 16 17
Gular fold to anus 33 33 36 41 41 47
Axilla to groin 24 24 25 30 30 34
Adpressed limbs separated
by 2 2 14 4 3
Fore limb 11 11 13 14 14 15i^
Hind limb 12 12 15 16 16 18y2
Heel to end of longest toe 5 5 6 6 7 7
Breadth of foot 3 3 4 4 5 6
Distribution.— This salamander is
known only from the vicinity
of Puget Sound, Washington.
It was first described from a specimen
taken in Paradise Valley, Mount Rainier National Park, Pierce
County.
It has been found on the Calawa River near Forks, Clallam
County, and in the Skokomish River Valley, Mason County.
Habits.— Specimens were found under stones along the upper
edge of the bed of the Calawa River where small seepages from
the banks kept the soil
wet.
Genus 7.
Ensatina
Ensatina Gray, Cat. Batrach. Grad. Brit. Mus., 1850, p. 48 (type,
eschscholtzii) .
In the salamanders of this genus both vomerine and parasphenoid
teeth are present; the teeth in the jaws are not unusually large;
the skull is well ossified; a prefrontal bone is present;
there is
a large fontanelle between the spines of the two premaxillary
bones; the tongue is attached along the median line except posteriorly;
the anterior limb has four digits and the posterior has
five digits.
The salamanders of this genus are very closely related to those
of the genus Plethodon from which they differ in having longer
limbs, palmar tubercles, and a basal constriction of the tail.