17. BoRBOoROcHTES.—18, ZACHNUS. 957 
11. Borborocetes coppingeri. (Prare XVII. fig. 2.) 
Cacotus coppingeri, Giinth. Proc. Zool, Soc, 1881, p. 19. 
Tongue entire. Vomerine teeth in two strong oblique series © 
between the choane. Head depressed; snout rounded, shorter 
than the orbital diameter; nostril equally distant from the eye 
and the tip of the snout; interorbital space as broad as the upper 
eyelid ; no tympanic disk. First 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. Skin of upper surfaces with very minute 
tubercles. Olive above. 
W. coast of Patagonia. 
an Ds W. coast of Patagonia. Dr. Coppinger [C.]. 
(Type-) 
Cyclorhamphus fasciatus, Peters, Mon. Berl. Ac. 1869, p. 789 
(Cystignathus fascatus, 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 choane. Tongue entire. Toes free. No 
palmar tubercle ; two metatarsal tubercles. Skin quite smooth. 
Brown, with dark cross bars. 
Puerto Montt, Chili. 
18. ZACHANUS. 
Zachzenus, Cope, Journ. Ac. Philad. (2) vi. 1866, p. 94. 
Pupil horizontal. Tongue subcircular, 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. Zachenus parvulus. 
Cystignathus parvulus, Gerard, U.S. Explor. Exped., Herp. p. 35, 
pl. 3. f. 34-38. 
Zachzenus parvulus, Cope, 1. ¢. 
Vomerine teeth disposed upon a transverse series, scarcely inter- 
rupted in the middle, and obliquely situated behind the choanee. 
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 
8 
