BATRACHIA SALIENTIA. 43 



1. PHRYNISCUS. 



Head moderate, with distinct muzzle, angular ; body raniform ; 

 cleft of mouth moderate ; extremities moderate ; teeth, none in jaws 

 nor in palate ; tongue elongate, free and entire behind. No tym- 

 panum nor cavum tympani ; eustachian tubes closed or conspicuous ; 

 sldn entirely or partially warty and spiny or smooth ; metatarsus with 

 two small blunt and flat tubercles. Fingers four, toes five, half- webbed. 

 Males with an internal subgular vocal sac. Tropical America. 



Phr}iiiscus, Wiegm. Not\ Act. Leap. 1834, p. 264 ; Dum. ^ Bibr, viii. 



p. 722 ; Bell, Zool. of the Bem/le, p. 48. 

 Chaunus, sp., Tschudi, Batr. p. 87. 



Pliryuidium, Marte7is, in No^nenclat. Rept, Mtis, Zool. Berol. 1856, p. 40. 

 Hylaemorplius, Fitzmger, Mus. Vienn. 



■■ - y€tji^, I'S^^A h/jM*,'!-.^,^ 



1. Phryniscus nigricans. 



Phryniscus nigricans, Wieqm. I. c. ; Dum. 8f Bibr, p. 723 ; Bell, Zool. 



of the Beagle, p. 49. t. 20. f. 3-5. 

 Cliauuus foi'mosus, (3fus. Leyden) Tschudi, I, c, ; If Orhigny, Voy. 



Amer. Mcvid. t. 15. f. 1-4. 



All upper and lateral parts covered with warts and small spines ; 

 head short, snout very blunt, the elongated outlines forming a rather 

 obtuse angle ; crown not concave ; plantar and palmar surface and 

 tarsus very rough and tuberculous ; all fingers quite free. Above 

 and beneath black ; arm-pit, some spots on the belly and anus white. 



a-c. Maldonado. Presented by Charles Darwin, Esq. 



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



2. Phryniscus laBvis. (Plate III. fig. A.) 



Upper parts without spines, with flat warts or quite smooth ; head 

 moderate ; snout rather protruding, the elongated outHncs forming a 

 rather acute angle ; canthus rostralis swollen, so as to render the 

 crown concave ; plantar and palmar surface mth flat smooth tuber- 

 cles, not rough ; tarsus with a cutaneous fold at the inner edge ; first 

 and second fingers half-webbed. Above brownish black, beneath 

 whitish ; anus brownish, 

 rt, h. Adult male and female. Panama. From M. PufFeis' Collection. 



c. Adult. Quito. 



d, e. Young : bad state. Chili. From Mr. Cuming's Collection. 



Description. — Habit like Bomhinator igneiis ; head angular, -with 

 swoUen canthus rostraHs, so as to render the crown and the loreal 

 region concave ; snout rather protruding, perpendicularly truncated, 

 but rounded in front ; mouth moderately cleft ; nares small, lateral. 

 AU upper parts without spines, except upper side of thigh and hu- 

 merus ; croMTi quite smooth ; back with some flat smooth warts ; 

 sides, upper parts of thigh and humerus mth spiny warts. Extre- 

 mities short ; humerus as long as the occiput is broad ; fore-arm rather 

 shorter : thigh and calf as long as humerus ; first and second fiueers 



