FROM THE CAYMANS AND THE BAHAMAS. 113 



body between arms and hips. Tail with six (or more) 

 black rings separated by white ones of equal width. Low- 

 er surfaces light. 



LiocEPHALUS LOXOGRAMMUS C7oj?e, 1887. 



Hyla septentrionalis Tsch.; Blgr, 



V. ANDKOS ISLAND. 

 Sph^rodactylus asper sp. n. 



Snout pointed, longer than the distance between the eye 

 and the ear, one and one-half times the diameter of the 

 orbit. Ear opening small, as large as the digital expan- 

 sions, oval, inclining backward from a vertical. Eostral 

 large, with median cleft above. In contact between the 

 nostrils with two moderate-sized and a smaller median 

 plate. Nostril pierced between rostral, first labial and 

 three scales. Five upper and five lower labials ; anterior 

 lower nearly as long as first two of the upper. Upper 

 eyelid with a small spine-like scale. Head covered with 

 keeled granular scales, those on snout very little larger. 

 Dorsals twice as large as ventrals, strongly keeled, in six- 

 teen to eighteen rows, with a vertebral zone of granules ; 

 ventrals moderate, imbricate, smooth. Guiar scales gran- 

 ular, little larger toward the pair of larger submentals 

 immediately behind the mental. Caudal scales irregular, 

 spine-like, imbricate, lower series smooth, median lower 

 broad. 



Brown ; scales minutely puncticulate ; belly lighter, free 

 margins of scales dark ; head yellowish without spots or 

 streaks. 



Closely allied to the species I have elsewhere described 

 from Hayti under the name 8. picturatus, on which the 

 scales on head and tail are less like spines, and which is 

 handsomely marked by lines, bands and spots. 



