NO. 7 llKUPETOLO(ilC'AI. COI.I.IXTIONS COCHRAN 45 



MABUYA SLOANII (Daudin) 



Scincus sloanci Daudin, Hist. Nat. Kept., vol. 4, p. 287, 180,^. 



A much mutilated lizard, IT.S.N.M. no. 81448, apparently of this 

 species was taken on West Caicos on August 4, 1930. Its coloration is 

 much like that of the type of niticla from San Domingo described by 

 Garman. The supranasals in nitida are barely in contact ; in the lizard 

 from West Caicos they are slightly separated ; in the Puerto Rican 

 examples of sloaiiii they are very broadly in contact. In the Puerto 

 Rican and Hispaniolan forms the first supraocular is very minute, 

 while the second is very large indeed. The specimen from West Caicos, 

 although badly damaged about the head, nevertheless shows a fairly 

 large first supraocular and a correspondingly reduced second supra- 

 ocular. In this specimen one pair of enlarged nuchal scales is present, 

 with a trace of a second pair in some fused scales on one side of the 

 neck. With so little material from Hispaniola, and with this single 

 injured specimen from the Bahamas, it is best to let the name Mabuya 

 sloanii cover these forms until more material has given a conclusive 

 decision about their status. 



Suborder Serpentes 



Family BOIDAE 



EPICRATES ANGULIFER Bibron 

 Epicrates angulifer Bibron in R. de la Sagra's Hist. Cuba, Rept., p. 215, 1843. 



U.S.N.M. no. 75865, a shed skin of a snake of this species, was found 

 at La Caridad de Mendoza, Senado, Camagiiey Province, Cuba, on 

 .Sei)tember 2, 1928. 



BOA HORTULANA COOKII (Gray) 

 Corallus cookii Gray, Zool. Misc., p. 42, 1842. 



For the two specimens, U.S.N.M. nos. 79097-8 from Quatres Island, 

 Grenadines, taken Atigust 17, 1929, I adopt the name proposed by 

 Amaral (Mem. Inst. Butantan, vol. 4, p. 143, 1929). A careful 

 inspection of scale coitnts of 29 West Indian examples of Boa appears 

 to establish the fact that the number of scale rows in this region lies 

 between 39 and 47, with over half of the specimens having either 41 

 or 43 scale rows. Those from the mainland appear to fall into two 

 groups, one having 43 to 47 scale rows, the other 51 to 55. These two 

 groups are found in separate geographical ranges, the first grotip 

 occurring in Venezuela, British Guiana and Colombia, the second in 

 Surinam, Brazil and Peru. As an intergrading probably occurs where 

 the ranges come together in the Guianas, subspecific names are desir- 



