new Bah achians from Costa Rica. 341 



wliicli are confluent into short folds ; bellj smooth. Pale 

 brown or grey above, spotted and marbled with darker ; 

 upper surface of snout sometimes whitish ; a dark streak from 

 the canthus rostralis to the edge of the mouth and two or 

 three from the eye; a dark triangular spot between the 

 eyes J an angular dark band, light-edged behind, may extend 

 across the anterior dorsal region; a blackish lu'nbar spot; 

 limbs with more or less angular dark cross-bauds ; inguinal 

 region and sides of thighs tinged with carmine. Male with 

 infernal vocal sacs. 



From snout to vent 30 millim. 



Several specimens from La Palma. 



Ilylella puncticrus. 



Tongue circular, entire. Head broader than long; snout 

 rounded, shorter than the diameter of the orbit; canthus 

 rostralis indistinct, loreal region concave, very oblique; 

 nostril nearer the tip of the snout than the eye ; interorbital 

 space broader than the upper eyelid; tympanum distinct, one 

 third the diameter of the eye. Fingers with large disks, 

 larger than the tympanum, the two outer one-third webbed ; 

 toes with smaller disks, three-fourths webbed. Tibio-tarsal 

 articulation reaching the tip of the snout. Skin smooth, 

 feebly areokte on the belly. Head and back purplish blue 

 (green?) or yellowish, finely speckled with purple; liuibs 

 colourless or finely speckled with purple; antebrachium and 

 crus, and sometimes also pelvic region and thigh, scantily 

 dotted with dark purple ; upper lip and lower parts white. 



From snout to vent 26 millim. 



Two specimens from La Palma. 



Spelerpes subpahnatus. 



Palatine teeth in two slightly arched series, not extending 

 outwards beyond the choanal, and separated from the para- 

 sphenoid teeth, which form a single patch. Head moderate, 

 much depressed, longer than broad ; greatest width at angles 

 of jaws ; snout- rounded, without canthus ; eye moderately 

 large. Body cylindrical, elongate, thrice as long as the 

 distance from tip of snout to gular fold. Limbs short, widely 

 separated when pressed against the body ; lingers and toes 

 short, depressed, obtuse, webbed at the base. Tail cylin- 

 drical or slightly compressed, very fragile ; when intact, 

 longer than head and body. Skin smooth and shiny, closely 

 pitted ; no parotoids ; gular fold distinct ; twelve costal 

 grooves. Grey or grey-brown above, speckled or marbled 

 Ann. c& May. N, Hist, Ser. 6. Vol. xviii. 24 



