BATUACIIIA SALIENTIA. 43 



1. PHRYNISCUS. 



Ilctul modoratc, with distinct muzzle, angular ; body ranifbrm ; 

 ili'll of moiitli niodonito ; extremities moderate ; teeth, none in jaws 

 nor in palate ; touf^ue elongate, free and entire behind. No tym- 

 panum nor eavum tympani ; eustachian tubes closed or consi)ieuous ; 

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

 two snudl blunt and llat tubercles. Fingers four, toes five, hall- webbed. 

 Males with an internal subgular vocal sac. Tropical America, 



Phryniscus, Wiegm. Nov. Act. Loop, 1834, p. 2G4 ; Bum, S,- Bihr. viii. 



p. 722; Bvll, Zool. of the Bemjlv, p. 48. 

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



riu'}iiidium, 3I(irtciis, in Nomenclat. Rqtt. Mus. Zool. Berol. 185G, p. 40. 

 Ilylsemoi-phus, Fitzinycr, 3Im. Vii'iin. 



1. Phryniscus nigricans. 



Phrvniscus nigricans, Wiegm. I. c. ; Dum. ^- Bihr. p. 723 ; Bell, Zool. 



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

 Chaunus forniosiis, {3Ius. Leyden) Tschudi, I. c. ; D'Orbii/ntj, Voij. 



Amer. 3Ierid. 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 

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

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



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



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



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



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

 moderate ; snout rather protruding, the elongated outlines forming a 

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

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

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

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

 whitish ; anus brownish. 

 ((,b. 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 Bombinntor igneus; head angular, with 

 swollen canthus rostralis, so as to render the crown and the lorcal 

 region concave ; snout rather protruding, perpendicularly truncated, 

 but ro\indcd in front ; mouth moderately cleft ; uarcs small, lateral. 

 All upper parts ^\^thout spines, except upper side of thigh and hu- 

 merus ; crown (piit(> smooth ; back with some llat smooth warts ; 

 sides, upper parts of thigh and hunun-iis with spiny warts. Extre- 

 mities short ; humerus as long as the occiput is l)road ; fore-ai'in rather 

 shorter ; thigh and calf as long as humerus ; first and second finders 



