124 



ECAUD1TA. 



36379-80. A split slab of lignite showing the impression and traces 

 of the bones of the skeleton, with some indications of the 

 contour of the soft parts ; from the Lower Miocene of 

 Rott, near Bonn, Siebengebirge. This specimen agrees in 

 all respects with the type skeleton from the same deposits, 

 figured by Meyer in the 4 Palseontographica,' vol. vii. 

 pi. xviii. fig. 9. Purchased, 1862. 



Section AECIPERA. 



Coracoids and precoracoids connected by an arched epicoracoid 

 cartilage, of which one side overlaps the other. Tongue present or 

 absent l . 



Family LEPTODACTYLID^ \ 



Upper jaw toothed ; sacral processes with slight or no termi- 

 nal expansion ; terminal phalangeals never claw-like ; vertebrae pro- 

 ccelous ; no dorsal ribs ; urostyle articulating with the sacrum by 

 two condyles, and without transverse processes. Tongue present. 



In the type genus the humerus of the male is expanded into a 

 more or less largely developed flange-like plate extending from the 

 posterior surface. 



Genus LEPTODACTYLUS, Fitzinger 3 . 



Syn. Cystiynathus, Wagler 4 . 



The type species. Skull smooth and without dermal ossifications ; 

 teeth on the vomer placed behind the posterior nares ; tympanum 

 very distinct. Outer metatarsals united. Sacral processes with- 

 out any distinct expansion. 



lUptotf actjrfuS pcntafcactglusi (Laurenti 5 ). 



Syn. Rana pentadactyla, Laurenti 6 . 

 Rana labyrinthica, Spix 7 . 

 Cystignathus labyrinthicus, Dumeril & Bibron 8 . 



1 The PalcBobatrachidce seem to connect the Phaneroglossa and Aglossa of 

 Boulenger's classification so closely, that such divisions are not advisable in 

 a palaeontological classification. 



2 This family is usually known as Cystignathida, but since Cystignathus is a 

 synonym the above name is substituted. 



3 Class. Reptilium, p. 38 (1826). 



4 Syst. Amphib. p. 202 (1830). 



5 Synopsis Eeptilium, p. 32 (1768).— i?a??a. 6 Lac. cit. 



7 Nov. Sp. Eanar. Brasil. p. 31 (1824). 



8 Erpetologie Grenerale, vol. viii. p. 407 (1841). 



