NORTH AMERICAN BATRACHIA AND REPTILIA. 
17 
parotoids not confluent, rounded; two metatarsal tubercles; tongue 
oval, elongated ; toes more or less palmated ; skin tuberculous ; 
no dorsal ossification on head ; subgular vocal vesicle in males. 
43. £. lentiginosus , subsp. americanus , LeConte. Common 
Toad. Superciliary ridges well marked, though but moderately 
elevated and not terminating in a knob posteriorly ; skin on head 
thick, adhering to skull ; tympanum well developed ; parotoids 
large, si^b-reniform ; internal metatarsal tubercle large and spade- 
shaped; toes semipalmated ; large tubercles on back; beneath 
granulated ; color above, greenish or yellowish-brown, with 
scattered black spots or patches ; two black patches under eyes, 
and occasionally spots about nostrils and jaws; beneath dirty 
yellowish, sometimes spotted and blotched; L. two and one-half 
inches. Eastern United States; west to the plains. 
44. B. lentiginosus , subsp. lentiginosus , Latr. Superciliary 
ridges much elevated posteriorly and terminating in a rounded 
knob; mouth very large; tympanum and parotoid well developed, 
the latter uniform; toes semipalm ate; back warty; abdomen 
granulated ; above dusky brown, tinged with yellowish, and more 
or less blotched ; beneath dirty yellowish-wliite ; L. two inches. 
Austroriparian region. 
45. B. lentiginosus , subsp. fowltri, Putnam, MSS. Massa- 
chusetts to Lake Winnipeg. 
46. B. quercicus , Holb. Superciliary ridges slightly 
elevated, terminating posteriorly in a small knob ; snout pointed ; 
tympanum small ; parotoids large, oblong ; metatarsal tubercles 
small; toes slightly webbed; back with a few small warts; 
beneath granulated ; body greatly depressed ; back dusky, with a 
pale yellow vertebral line, on each side of which are black 
blotches, with here and there a tinge of reddish-brown ; beneath 
silver-gray, with a yellowish tinge around vent ; L. three-quarters 
of an inch. Florida to North Carolina and Louisiana. 
47. B. vallicejos , Wieg. Upper surface of head deeply 
concave; skin thin, firmly adhering to skull; superciliary ridges 
prominent; tympanum large; parotoids small; toes semipalmate; 
above yellowisli-brown, with a broad dorsal streak of same tint, 
on each side of which is generally a black bar, extending the 
whole length of body; sides maculated; beneath unicolor in 
adults, spotted in young. Texas district and Louisiana. 
