17. BOEBOROC(ETES. 18. ZACH^XUS. 257 



11. Borl3orocoetes coppingeri. (Plate XVII. fig. 2.) 

 Cacotiis coppingeri, Giinth. Proc. Zool. Soc. 1881, p. 19. 



Tongue entire. Yomerine teeth in two strong oblique series 

 between the choanae. Head depressed ; snout rounded, shorter 

 than the orbital diameter ; nostrU equally distant from the eye 

 and the tip of the snout ; interorbital space as broad as the upper 

 eyelid ; no tympanic disk. Pirst finger not extending beyond second; 

 toes slightly fringed, with a rudiment of web ; subarticular tubercles 

 well developed ; two metatarsal tubercles. The hind limb being 

 carried forwards along the body, the tibio-tarsal articulation reaches 

 the hinder edge of the eye. 8kin of upper surfaces with very minute 

 tubercles. Olive above. 



W. coast of Patagonia. 



a. 2 • W. coast of Patagonia. Dr. Coppinger [0.]. 



(Type.) 



Cijclorhamjphus fasciatus, Peters, Mon. Berl. Ac. 1869, p. 789 

 {CystignathiLs fasciatus, id. ibid. p. 881), appears to belong to this 

 genus. 



Vomerine teeth in two oblique series, a little behind the level of 

 the hinder edge of the choanoe. Tongue entire. Toes free. ]!^o 

 palmar tubercle ; two metatarsal tubercles. Skin quite smooth. 

 Brown, with dark cross bars. 



Puerto Montt, Chili. 



18. ZACH^ENUS. 



Zachsenus, Coije, Journ. Ac. Philad. (2) vi. 1866, p. 94. 



Pupil horizontal. Tongue si;bcircular, entirely adherent. Vome- 

 rine teeth in a transverse series upon palatine arch. Tympanum 

 distinct. Fingers and toes free, the tips not dilated. Outer meta- 

 tarsals united. Omosternum cartilaginous ; sternum a cartilaginous 

 plate. Terminal phalanges simple. 



Brazil. 



1. Zachasnus parvulus. 



Cvstignathus parvuluSj Girard, U.S. Explor. Exped., Herp, p. 35, 



"pi. 3. f. 34-38. 

 Zacbsenus parvulus, Cop)e, I. c. 



Vomerine teeth disposed upon a transverse series, scarcely inter- 

 rupted in the middle, and obHciuely situated behind the choanae. 

 Snout rounded ; tympanum smaller than the eye. Fingers de- 

 pressed, first longer than second ; toes slender, depressed, bor- 

 dered by a membranous fold; two metatarsal tubercles. Hind 

 limb a little longer than -head and body. Skin everywhere perfectly 

 smooth. Light yellowish or reddish brown above; a chestnut- 

 brown vitta extends from the snout, over the nostrils, to the anterior 



s 



