32 EEPTILES. 



Lumbar gland prominent, rounded, oval, not longer than head 

 broad. Toes shghtly fringed in all varieties. Tympanum indistinct. 



Var. A. Without dorsal streak ; lumbar gland whitish, a black 

 spot in the centre. 



a. Adult. Maldonado. Presented by Charles Darwin, Esq. — Original 

 specimen for Prof. Bell's PJcurodema daru'inn not being in a 

 good state, and having lost the vomerine teeth. 



h, c. Adult. ChiH. 



d. Adult. Chili. From M. Parzudaki's Collection. 



e. Adult. Chili. From Mr. Cuming's Collection. 

 /. Adiilt. Shores of Pacific Ocean. 



g, h. Adult. South America. Presented by Charles Darwin, Esq. 

 i. Adult. South America. Presented by Charles Darwin, Esq. 

 l\ Adult female. South America. Presented by Charles Darwin, 

 Esq. 



Var. B. With an iuchstinct dorsal streak, conspicuous only in 

 front on the muzzle and on the coccyx. Lumbar gland black, with 

 some small white spots in the centre. 



I. Adult male. Venezuela. From Mr. Dyson's Collection. 

 m. Half-grown. Venezuela. From Mr. Dyson's Collection. 



Var. C. Back with a broad whitish longitudinal streak : Pleuro- 

 dema elegans, Bell. 



n. Adult. Chiloe. Presented by Charles Dai-win, Esq. Original 



specimen of Prof. Bell's figure. 

 0. Adult. Chili. From Mr. Bridge's Collection. 

 2). Adult. South America. Presented by Charles Darwin, Esq. 

 q-s. Adult. South America. Presented by Charles Dai-niu, Esq. 



Intennediate between Var. A. and Var. C. 



3. LIMNODYNASTES. 



Habit rather stout, sometimes with large head ; extremities 

 rather short ; fingers quite free ; toes quite free or sometimes sUghtly 

 webbed or fringed. Skin smooth or with scattered flat warts, in 

 one species a large gland on the calf. Palatine teeth in one long, 

 straight, in the middle harcUy interrapted scries, behind the inner 

 nostrils. Tongue more or less cii'cular, nearly entire behind. Inner 

 nostiils and eustachian tubes moderate ; tympanum hidden. Males 

 mth an external subgular vocal sac. Australia. 



Wagleria, Girard, Proc. Ac. Nat. Sc. Philacl vi. p. 421. 

 Perialia, Gray, hi Ut/re^s Joiini. Exped. Centr. Avstr. i. p. 406. 

 Limiiodynastes, Fitzinge); Syst. Rept. p. 31 ; Gray, MSS. 

 Cvstiiriiathus, sp., Bum. ^- Bibr. viii. p. 409; Gray, in Capt. Grey''s 

 ' West Austr. p. 446. 



