52 REPTILES. 



obtuse ; eyes modei'ate ; skin smooth ; thighs -ndthout white streak ; 

 sometimes a cutaneous fohl across the occiput. 



a. Adult. Mexico. From M. Parzudaki's Collection. Talon with 

 two tuliercles. 



h, c. Adult and half-grown. New Orleans. 



d, e. Half-grown and young. North America. Presented by Ed- 

 ward Doubleday, Esq. 



f. Adult : fine specimen. Cordova. From M. Salle's Collection. 



Rose-coloured ; back with an irregular broad dark band ; sides 

 of the head and body brown ; hip with a round black spot ; legs 

 with three broad black-edged bands ; belly white, marbled with 

 brown ; throat brown, marbled with white. 



g, h. Half-grown. Cordova. From M. Salle's Collection. One of 



these specimens agrees with the fonner ; the other one, probably 

 a female, with E. olivaeeum, Hallowell. 



3. Engy stoma rugosum. 



Engystoma rugosum, Dm)). iS'' Bibr. p. 744. 

 Talon with only a single tubercle. Skin nigose. 

 a. Half-grown. Mexico. From M. Parzudaki's Collection. 



4. Engystoma microps. 



Engystoma microps, Dum. &,• Bihr. p. 744. 



Talon with only a single tubercle ; muzzle miich pointed ; skin 

 smooth ; eyes excessively small {Dum. ^ Bihr.). Brazil. 



2. BREVICEPS. 



Head veiy short, confounded with body ; muzzle indistinct, mouth 

 small ; thigh and arms very short, indistinct ; teeth, none in jaws 

 nor in palate ; tongue oval, entii'e. Tympanum hidden ; eustachian 

 tubes veiy small. Fingers four, toes five, all quite free. South and 

 West Africa. 



Breviceps, Merr. Tent. p. 178 ; Dmn. Sf Bihr. p. 752. 

 Systoma, Wm/l. Syst. Amph. p. 205 ; Tschudi, Batr. pp. 47, 86. 

 Engystoma, sp., Ctiv. Rk/ne Anim. 

 Rana, sp., Bufo, sp., auct. jnior. 



1. Breviceps verrucosus. 



3SUS, Sapp, in Erichson^ j. 

 6. f. 5 ; Smith, HI. of S. Af, 



Above and beneath covered with perforated granular glands ; head 



Breviceps verrucosus, Rapp, in Erichson^s Archiv fur Naturqesch. 

 1842, p. 289. t. 6. f. 5 ; Smith, III of S. Afr. App'. p. 27. 



