274 BUFONID 2. 
rior limbs (extended backwards, they reach beyond the body), 
the absence of an outer metatarsal tubercle, the completely webbed 
toes, and larger size. 5 
Peru, 
2. DENDROPHRYNISCUS. 
Dendrophryniscus, Espada, Jorn. Sc, Lish. iii. p. 65. 
Pupil ? Tongue oblong, entire, free behind. Vomerine 
teeth none. ‘Tympanum hidden. Fingers and toes webbed at the 
base, the tips dilated. No omosternum; sternum with a bony style. 
Brazil. 
1. Dendrophryniscus brevipollicatus. 
Dendrophryniscus brevipollicatus, Lspada, 1. c., and Viaj. Pacif., Vert. 
pl. 6. £. 3: 
Head depressed, triangular; snout produced, truncate. First 
finger rudimentary. Skin minutely tubercular. Reddish brown 
above; limbs with dark cross bands; beneath light brown, belly 
whitish. 
Rio Janeiro, 
7. BUFONIDA. 
Brachycephalidee, part., Engystomatide, part., Butonidie, part., Rhi- 
nophrynidee, Giinther, Cat. Batr. Sal. 
Rhinophrynide, part., Brachymeridie, part., Bufonidee, Cope, Nat. 
ITist. Rev. 1865, 
Rhinophrynide, Phryniscide, part., Bufonidie, part., Engystomidie, 
part., Mivart, Proc. Zool. Soc. 1869, 
Rhinophrynide and Bufonidee, Cope, Check-list N.-Amer. Batr. § 
Rept., Bull. U.S. Nat. Maus. i. 1877. 
Maxillary teeth none; diapophyses of sacral vertebra dilated. 
The first two genera of this family approach the Cystignathidea— 
Engystomops resembling Paludicolu, and Pseudophryne resembling 
Crinia ; whilst the last two, viz. Wyobatrachus and Rhinophrynus, 
approach the Hngystomatide. 
The omosternum is generally absent ; if present, it is reduced to 
a narrow cartilage. The sternum is usually a cartilaginous plate, 
which in a few cases is ossified along its centre; in Engystomops 
there is a well-defined bony style supporting a cartilaginous disk. 
The vertebra are proceelian and without ribs. The diapophyses 
of the sacral vertebra are more or less dilated, but never to such a 
degree as in the Pelobatide. . The coccyx is attached to two condyles. 
A fronto-parietal fontanelle is present.in Hngystomops, Pseudo- 
phryne, and a few species of Bufo ; and in a few other species of the 
latter genus the derm is completely involved in the cranial ossifi- 
cation. 
In two genera the pupil is erect. 
The distal phalanges are simply obtuse, or T-shaped. 
