74 B A T R A C H I A. 



The lumbar joatclies are lighter, but upon their upper and posterior 

 portion may be seen a jet-black, oblong spot, with a narrow light mar- 

 gin. A narrow black band commences behind the eyes, extends over 

 the shoulders, and becomes wider as it spreads over the sides of the 

 chest, but tapers towards the belly. A few transverse, jet-black bands 

 are observed on the hind legs and one or two upon the anterior ones. 

 Along the posterior, outer margin of the thighs, is a longitudinal, dark 

 streak, with an upper, lighter margin. The head beneath, the chest, 

 and the under parts of the legs, are reddish ; the latter vermiculated 

 with whitish. The belly is maculated with white and black. 



This species w^as caught in the neighborhood of Rio de Janeiro, 

 Brazil. 



Genus BUFO, Laur. 



Gen. Char. — Tympanum more or less distinct. Parotid glands present. 

 Tongue elongated, elliptical, entire, or forked posteriorly, and more 

 or less free. Eustachian tubes moderate. Fingers free ; toes pal- 

 mated or subpalmated. Males generally provided with a subgular 

 vocal bladder. 



Syn.—Bu/o, Laur. Synops. Rept. 1768.— Dum. & B. Erp. gen. VIII, 1841, 662.— 

 Wagl. Naturl. Syst. Amph. 1830, 206. 



Observ. — The parotid glands and pustulous skin constitute the most 

 characteristic features of the toads, properly so called. The fingers, 

 four in number, and the toes, five, are depressed ; the former being 

 always free, whilst the latter are webbed to a greater or lesser degree. 

 A horny process may likewise be observed at the base of the inner 

 toe, and occasionally a second smaller one, outwardly. 



1. BuFO BOREAS, B. & G. 



(Plate VI, figs. 4-9.) 



Car. spec. — Capitis facie superiore plana; cute Icei'i, calvce iion ad- 

 lio?rente. Qlandulis parotidis modicis. Tympam exiguo. Plica- 

 tiira membranea in tarso. Plantar um dir/ltis jxdmatis. Supra vindi 



