THE HERPETOLOGY OF HISPANIOLA 41 



limbs being laid along the sides, knee and elbow are slightly separated; 

 the hind limbs being adpressed, heel reaches nearly to nostril; the 

 hind limbs being placed vertically to axis of body, heels overlap. Skin 

 of upper parts finely shagreened; a median dorsal ridge, less prominent 

 on snout, fading out on sacral region ; a glandular ridge over tympanum, 

 and a very fine, branching glandular line just above and behind the 

 shoulder on the side of the body, but no prominent dorsolateral fold; 

 skin of throat and chest smooth; belly and lower surface of thighs 

 minutely granular; an external vocal sac extending across the throat, 

 marked by some small diagonal folds of skin in front of the shoulders 

 when not inflated. 



Dimensions: Snout to vent, 28 mm.; width of head, 10.5 mm.; 

 diameter of eye, 4.5 mm. ; diameter of tympanum, 2 mm. ; foreleg from 

 axilla, 19 mm.; hindleg from vent, 46 mm.; vent to heel, 27 mm.; 

 tibia, 15.5 mm.; femur, 15 mm. 



Color (in alcohol): Dorsum clay color; a narrow chocolate inter- 

 orbital bar not extending onto the upper eyelids ; an irregular W-shaped 

 brown mark behind the occiput, its outer terminations extending onto 

 the posttympanic area; several small brown spots on the snout, and 

 series of similar spots on the back tending to be arranged in short 

 transverse rows; canthus rostralis with a brown stripe, spotted with 

 deeper chocolate; upper lip light raw umber with indistinct dark and 

 light spots; upper surfaces of tibia, foot, and forearm with brown cross 

 bars; upper femur with the bars very indistinct, its posterior surface 

 unmaculate; ventral surface immaculate buff, except for some faint 

 dark suffusions on the throat of the male. 



Variations. — The five paratypes, all smaller than the type, differ 

 only slightly. The adpressed hind limb reaches sometimes to the 

 anterior corner of the eye, sometimes to the tip of the snout. The 

 vomerine teeth are weak and short in all specimens. The dorsal 

 ground color varies from buff to drab, but the dark pattern is remark- 

 ably constant. The dorsal skin is minutely shagreened in all but one 

 specimen, in which it appears to be smooth. 



Remarks. — This species differs from the flavescens of the Samand 

 region in having larger eyes, the eye diameter equaling twice that of the 

 tympanum, while the vomerine teeth are strikingly weak in compari- 

 son. The pigment is likewise more distinctly concentrated in a defi- 

 nite pattern of spots on the dorsal surface in these frogs from the 

 Citadel, and the light and dark areas stand out sharply, instead of 

 being blurred and suffused into half tones, as is the case in practically 

 all the frogs from the eastern part of the island. 



Specimens examined. — As listed in table 10. 



226849 — 41- 



