ART. 11 HERPETOLOGICAL COLLECTIONS FROM SIAM — COCHRAN 



19 



median dorsal rows enlarged; prefrontals forming a long median 

 suture; hind limb reaching three-fifths to four-fifths the distance to 

 axilla, reaching wrist or elbow; 21 keeled subdigital lamellae on the 

 fourth toe. 



Type. — U.S.N.M. No. 75591, from Pran, Peninsular Siam, collected 

 on May 25, 1928, by Dr. Hugh M. Smith. 



Description oj the type. — Distance between the end of snout and 

 forelimb about one and one-third times in distance between axilla 

 and groin; limbs well developed, pentadactyle ; hind limb barely 

 reaching wrist when adpressed, covering about three-fifths the dis- 

 tance from groin to axilla; snout obtusely pointed; lower eyelid with 

 an undivided, transparent disk; no supranasals; rostral convex, 

 forming an almost straight suture with the frontonasal which . is 

 broader than long; nostril large, pierced in the nasal; prefrontals 

 forming a long median suture; frontal very narrow behind, a little 



Figure 4.— Leiolopisma peaxensis. Type. U. S. Nat. Mus. No. 75591. 

 From Pran, Peninsular Siam. a, top of head; 6, profile view; c, 



UNDER side of HEAD; d, DORSAL SCALES AT MID-BODY 



shorter than the frontoparietals and interparietals together andfin 

 contact with the two anterior supraoculars; a large temporal scale 

 bordering the parietals; four large supraoculars, the first longer than 

 the second; on right side eight superciliaries, on left seven; fronto- 

 parietals a little smaller than and distinct from the interparietal, 

 which shows the pineal body very plainly as a round black spot; 

 parietals forming a suture behind the interparietal; two or three pairs 

 of enlarged nuchals, slightly irregular in shape; the suture between 

 fifth and sixth upper labials falling below center of eye; ear opening 

 roundish, less than half the size of the eye opening, with two or three 

 very weakly developed lobules in its anterior margin; about 30 

 smooth scales around the body, the four median dorsal rows con- 

 siderably enlarged; the laterals a little smaller than the ventrals and 

 not arranged with perfect regularity; a pair of enlarged preanals; 

 digits compressed, especially towards the tips; all the subdigital 



