74 



B A T R A C H I A. 



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

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

 o-in. 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 was 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. Bufo, LAUR. Synops. Kept. 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 Icevi, cahce non ad- 

 hcprente. Olandulis parotidis modicis. Tympano exiguo. Plica- 

 tura membranea in tarso. Plantar >im digitis palmatis. Supra vlridi, 



