610 



REPOKT OF NATIONAL MUSEUM, 1902. 





nuchals seem to predominate in Jamaican specimens, while suprana- 

 sals in contact and two nuchals belong more to the eastern form. 



During my visit to Berlin in 1901 I was enabled to examine two inter- 

 esting type specimens in the Natural History Museum there, thanks to 

 the kindness of the curator, Dr. G. Tornier. They were JEuprepes semi- 

 tseniatus and E. spilonotus, both described by Wiegmann from unknown 

 localities. The latter (No. 3785) has three pairs of nuchals and the supra- 

 nasals are not in contact, thus agreeing with the Jamaican form. The 

 other (No. 5290), E. semitxniatus, has two pairs of nuchals and the 

 supranasals are in contact; it has also 32 scale rows around the body. 

 In these respects it agrees with M. sloanii, but the coloration is so 

 different and so peculiar that I can not refer it to this species. On 

 the head and anterior portion of the body there are two very dark 

 brown longitudinal bands, with a narrow, light band on the middle 

 line. The dark bands gradually taper off posteriorly, disappearing 

 on the middle of the back. The lateral dark band is traceable to the 



groin. 



Figs. 56-58. — Mabuya sloanii. 2 x natural size. 56, top of head; 57, side of head; 58, underside of 



head. No. 6052, M.C.Z.C. 



Description of adult. — Mus. Comp. Zool. Cambr. No. 6052; Porto 

 Rico. Head depressed, snout moderate; supranasals broadly in con- 

 tact behind the rostral separating the latter from the frontonasal, 

 which is broader than long and in contact with frontal; nasal irregu- 

 larly trapezoidal with the large nostril in the posterior half; a small 

 postnasal; two loreals, the posterior about twice as large as the 

 anterior; prefrontals separated, in contact with both loreals, just 

 touching second supraocular; frontal about as long as its distance from 

 posterior end of interparietal, in contact with second supraocular 

 only; four supraoculars, first small, scarcely touching frontal, second 

 largest, just touching prefrontal; four superciliaries, second very 

 long; two frontoparietals in contact with second, third, and fourth 

 supraoculars; an interparietal, behind which the parietals are in con- 

 tact; two pairs of enlarged nuchals; a transparent disk on lower eye- 

 lid; temporals large; the sixth supralabial forming a long subocular, 

 there being five subequal supralabials anterior to it; mental followed 



