1 68 VERTEBRATE ANIMALS OF THE UNITED STATES 



salmon, with 3 dark dorsal stripes or rows of spots; length 30 mm.: 

 eastern and central States. 



Subspecies of P. nigrita 



P. n. nigrita (LeConte). Spots outlined with lighter: North 

 Carolina to Mississippi. 



P. n. feriarum (Baird). Color greenish brown or gray, creamy 

 underneath; legs longer; hind leg 40 mm. long: Virginia to New York, 

 east of the mountains. 



P. n. triseriata (Wied). Legs shorter; color light ash, usually with 

 5 or 6 brown stripes: central States, from the Alleghenies to Arizona 

 and Idaho. 



P. hrachyphona (Cope). A black triangle present between the eyes, 

 and a black band through each eye; 2 broad curved dorsal stripes; 

 length 30 mm. : Pennsylvania to Tennessee, in the mountains. 



P. ornata (Holbrook). Body smooth, gray, green or reddish brown 

 in color, with or without elongated dark spots and with a black band on 

 each side of the body; several bright yellow spots on the sides pos- 

 teriorly; length 35 mm.: Florida and South Carolina to Texas. 



P. ocularis (Holb.). Color chestnut, with a dark stripe through the 

 eye; length 17 mm.; upper jaw edged with white: South Carolina and 

 Georgia; the smallest American tree toad. 



Family 5. Ranidae. — Frogs. Medium sized or large Salientia; 

 skin smooth; maxillary and usually vomerine teeth present; pectoral 

 girdle iirmisternal (coracoids and precoracoids do not overlap mid- 

 ventrally) ; sacral transverse processes cylindrical ; toes 4-5 ; no parotoid 

 glands: about 270 species, in all the geographical regions, four-tifths of 

 which are in Africa and India; i genus and about 15 species in the 

 United States. 



Rana L. Toes webbed; fingers not webbed; first finger of male 

 swollen, especially in the spring at breeding time; vomerine teeth pres- 

 ent; a pair of conspicuous dorso-lateral glandular ridges (Figs. 93, 94 and 

 95) run the length of the back in most species: about 120 species, 

 widely distributed throughout the world; 15 species in the United States, 

 mostly diurnal and more or less terrestrial animals which live in moist 

 situations on the ground near the water, to which they return to breed, 

 and often also, when alarmed, for protection. The eggs are laid in the 

 water in large jelly masses attached usually to sticks or vegetation. 

 The tadpoles usually complete their metamorphosis the year in which 

 they are born, but the green-frog and the bullfrog do not become adult 

 until the following, or in many cases, the second year. The principal 



