324 BULLETIN 17 7, UNITED STATES NATIONAL MUSEUM 



by a small scale in the original figure; in No. 55025 this small scale is 

 absent on one side of the head, and the loreal and preocular touch 

 the second prefrontal; in No. 66713 the small scale is absent on both 

 sides of the head. In the figure, a number of large irregular scales 

 are shown behind the parietals. These large plates, in No. 55025, 

 seem more regularly arranged as a series of three pairs following the 

 parietals and separated by a median row of scales, while No. 66713 

 resembles the type in that there are no regularly arranged scales on 

 the occipital region. 



Relationships.— Its affinity to Epicrates jordii has been discussed 

 under relationships of that species. 



Specimens examined. — As listed in table 61. 



Table 61. — Specimens of Epicrates gracilis gracilis examined 



Museum No. 



U.S.N.M. 



55025. 

 66713. 



M.C.Z. 



5135.. 

 43655. 

 43687. 



Hamburg Mus. 



a (cotype). 

 b (cotype) . 



Locality 



Rojo Cabo, Samana Penin- 

 sula, D. R. 

 Jovero, D. R 



Sosua, D. R 



Santa Barbara do Samana, 

 D. R. 



"Cape Hayti". 

 do 



Date 



Aug. 29,1916 

 Nov. 29, 1923 



1937. 

 1937. 



Collector 



W. L. Abbott. 

 do.. 



W. J. Clench. 

 do 



H. Rolle. 

 do... 



13 

 12-13 

 13 



Genus TROPIDOPHIS Bibron 



1840. Tropidophis Bibron, in de la Sagra's Historia fisica, politica y natural de 

 la isla de Cuba, vol. 4, Reptiles, p. 124; French ed., p. 208 (type, Boa mel- 

 anura). 



1841. Leionolus Bibron, ibid., p. 127; French ed., p. 212 (type, L. maculaius) 

 (not of Kirby, 1837). 



1842. Ungalia Gray, Zool. Misc., 1842, p. 46 (type, Boa melanura). 



1843. Erycopsis Fitzinger, Systema reptilium, p. 27 (type, Boa melanura). 

 1856. Notophis Hallowell, Proc. Acad. Nat. Sci. Philadelphia, 1856, p. 156 



(type, N. bicarinatus= Boa melanura) . 

 1864. Lionotus Peters, Monatsb. Berlin Akad. Wiss., 1864, p. 388 (emend.). 

 1868. Ungualia Cope, Proc. Acad. Nat. Sci. Philadelphia, 1868, p. 101 (emend.). 



Although the neighboring island of Cuba harbors five living repre- 

 sentatives belonging to both of the larger groups of this genus, a 

 single species of Tropidophis is recognized on the island of Hispaniola. 



