13. LErosoma.—14. LoxoPHOLIS. 387 
2. Leposoma dispar. 
Leposoma dispar, Peters, Mon. Berl. Ac. 1880, pp. 217, 309, pl. —. 
fig. 2. 
Closely allied to the preceding; differing chiefly in the following 
points :—Frontonasal obtusely angular posteriorly ; interparietal 
shorter and broader, much larger than parietals ; four pairs of chin- 
shields, the three anterior in contact; a complete row of smaller 
scales across the throat, from one car to the other. Scales distinctly 
broader; abdominals rounded or truncate posteriorly, mucronate. 
Dark brown above, black-dotted; on each side of the back a light 
line, commencing from the supraocular region; sides of head with 
oblique black lines; lower surfaces yellowish white. 
millim. millim. 
Total length ...... 104 Fore limb ........ 12 
To base of tail .... 37 Hind limb........ 17 
Caceres, Colombia. 
14, LOXOPHOLIS. 
Loxopholis, Cope, Proc. Ac. Philad. 1868, p. 305. 
Head with large regular shields; frontonasal separating the 
nasals ; prafrontals and frontoparietals present. Eyelids developed, 
lower with a transparent disk. Ear exposed. Limbs well deve- 
loped, each with five digits. Scales imbricate, arranged in oblique 
rows or quincuncially, the exposed portion triangular, strongly 
keeled; lateral and gular scales like the dorsals; ventrals broad, 
quadrate, smooth. No collar. Tail cylindrical. 
Colombia. 
1. Loxopholis rugiceps. 
Loxopholis rugiceps, Cope, J. ¢. 
Upper head-shields rugose, with longitudinal striz; two loreals 
or preoculars between nasal and eye; four supraoculars ; fronto- 
nasal as long as broad; prefrontals largely in contact ; upper labials 
five, long and narrow, third and fourth under orbit, with a narrow 
series of scales between ; five long and narrow lower labials; chin- 
shields large, one anterior and five pairs, the first two pairs in 
contact. Twenty rows of lance-triangular scales on back and both 
sides, and four rows of smooth abdominal scales, which are broader 
than long. Six large praanal plates, five reaching the margin, the 
two outer narrow, the median short. Scales of the limbs large, 
keeled. Caudal scales like those of the back of Puntodactylus; keels 
stronger below than above. Above yellowish brown, with a narrow 
blackish band on each side from the upper margin of the ear to near 
the end of the tail; a median pair of bands appear near the rump, 
and continue half the length of the tail, but are very indistinct ; the 
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