THE HERPETOLOGY OF HISPANIOLA 



127 



semicircles and the occipital; a very strong lateral ridge from the mid- 

 dle of the posterior orbital border extending horizontally backwards 

 and ending in a heavy tuberculated knob above the ear; several 

 enlarged spinose scales above this ridge; two weak ridges running 

 parallel with these, and extending from the posterior border of the 

 supraorbital ridges to the occiput; a faint transverse ridge across the 

 occiput joining the posterior portions of all the ridges; nine upper and 

 nine lower labials to a point directly beneath the center of the eye; 

 all the head scales with a sharp keel or a spinose tubercle in the center, 

 excepting the occipital and the scales between the supraorbital semi- 

 circles which are smooth ; ear-opening with scarcely any indication of a 

 ridge in front of it, oval, about half the length of the eye-opening. 

 A short gular fan, and a decided transverse fold behind it extending on 



Figure 42. — Chamaelinorops wetmorei: a, Top of head; b, scales around middle of body 

 U.S.N.M. No. 72630, type, from Fonds-des-N^gres, Haiti. Four and one-half times 

 natural size. 



the sides of the neck up to the knob above the ear and nearly onto the 

 nuchal region; throat covered with rows of very small keeled scales. 



"Body extremely compressed, the sides vertical or concave, over 

 twice as deep as widp at mid-body; no trace of a dorsal or caudal crest. 

 Lepidosis heterogeneous; six rows of large dorsal scales; the two 

 middle rows narrower than long, each scale with a distinct keel ending 

 in a raised elevation posteriorly; the next two rows the largest, the 

 scales about as wide as long and with their keels ending in elevations 

 which are even more pronounced and which form in profile an irreg- 

 ular saw- toothed line; the two outer dorsal rows like the middle 

 pair in size and carina tion; below these and merging gradually into 

 them is a band of small, rather smooth but very irregular dorso- 

 laterals about 12 scales in width; below these comes a lateral band 

 of two rows of large, tubercular scales beginning in front of the 

 shoulder, running above it and straight along the sides to the 

 groin; below these and sharply separated from them is a latero- 



