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No. 16] AMPHIBIANS OF WESTERN NORTH AMERICA 95
Sci., XVI, 1921, p. 113; Schmidt, Bull. Amer. Mus. Nat. Hist.,
XLVI, Art. XI, 1922, pp. 612, 615, 629, 634; Stejneger & Barbour,
Check List N, Amer. Amph. Rept., 1923, p. 24; Pratt,
Verteb. Animals of the U. S., 1923, p. 174; Grinnell & Storer,
Animal Life in the Yosemite, 1924, pp. 655-657, pi. 60a; Storer,
Univ. Calif. Publ. Zool., XXVII, 1925, p. 169.
Bufo borealis halophilus Stephens, Trans. San Diego Soc. Nat.
Hist., Ill, No. 4, 1921, p. 60.
Description. — Size large; head a little broader than long, rounded
in outline from above. Snout broadly truncate, overhanging in
profile. Nostril horizontal or directed slightly downward, nearer
to tip of snout than to orbit; distance between nostrils less than
interorbital width; interorbital width equal to or very little greater
oval or
than width of upper eyelid. Tympanum small, broadly
roundish in outline. Canthus rostralis moderately prominent or
obscure. Parotoid glands well developed, elongate or sometimes
roundish in outline. Limbs robust; a prominent inner sole tubercle;
two large palmar tubercles; under surfaces of feet with minute
tubercles; subarticular tubercles prominent; fingers and toes with
rounded knob-like ends. Skin smooth; back and dorsal surface
of hind limbs with widely scattered roundish or elongate warts.
Under surfaces granular, with small tubercles on thighs. Tongue
narrow, oval in outline, attached centrally and anteriorly.
Ground color above grayish or greenish, spotted or reticulated
with black. Warts on back may be with or without black borders.
A narrow yellowish dorsal stripe extends from tip of snout to
anus. Under surfaces yellowish, sparsely spotted with black. Some
individuals
are uniform yellowish without the black markings.
Measurements of 6
Specimens in the Collection of the
California Academy of Sciences
Snout to anus 72 77 78 82 86 93
Width of head 30 33 32 35 38 35
Diameter of eye 8-10 10 10 11 10
Interorbital width 7 6 5 8 6 7
Snout to orbit 12 12 12 12 11 9
Nostril to orbit 6 6 5 7 7 7
Fore limb 50 47 38 49 42 47
Hind limb 90 83 95 101 99 97
Length of foot 48 46 54 55 51 57
Breadth of foot 18 21 25 28 30 27
Habits.— This species is common throughout its range. It usually
inhabits flower gardens, roads or sheltered paths, where it can be
found feeding shortly after dark. Its food consists principally of
September 15. 1928