14 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 69 



The dorsal dark cross-bars in No. 50094 number 20^ on the body 

 and 5 on the tail The transformation of a narrow cross-bar, con- 

 stricted on the mid-dorsal line anteriorly, to an oval longitudinally 

 elongated spot on the posterior part of the Ijody is clearly shown on 

 this specimen. 



EPICRATES CENCHRIS MAURUS (Gray) 



A single female specimen, U.S.N.M. No. 50125, collected at Gatun, 

 [uly 31, 191 1, bv E. A. Goldman, has 238 ventrals and 54 subcaudals. 

 The remains of a Boqueron cotton rat (Sigmodoii hispidus chiri- 

 qiioisis Allen) are contained in the stomach. 



BOA RUSCHENBERGII (Cope) 



A single male specimen, U.S.N.IM. No. 53896, was collected by 

 Meek and Hildebrand, v^^ithout data other than " Panama." The 

 ventrals number 267, the subcaudals 86. 



TRETANORHINUS MOCQUARDI Bocourt 



Two specimens, L'.S.N.M. Nos. 54200, 54203, collected at Corozal, 

 April 20, 191 1, by Meek and Hildebrand. The first of these, a female 

 with tail incomplete, has 168 ventrals; the second is a male with 166 

 ventrals and 78 subcaudals. 



The venter is nearly uniform dark brownish ; lateral yellow stripe 

 with scales narrowly outlined with brown. The lateral scales just 

 above the anal cleft have well developed supra-anal ridges in the male 

 specimen. 



TRETANORHINUS NIGROLUTEUS Cope 



One specimen, U.S.N.M. No. 54151, collected at Gatun, May 13. 

 191 1, by E. A. Goldman, is referred to this species. It is in excellent 

 agreement with Cope's description except that the internasals are 

 narrowly in contact with the rostral, and that there is a mid-ventral 

 series of widely spaced brownish spots, as described by Bocourt for 

 his lateralis. The specimen is a female, with 147 ventrals and 61 

 subcaudals. 



NINIA ATRATA SEBAE (Dumeril and Bibron) 



A single specimen, U.S.N.M. No. 501 14, collected at Cana, April 

 10, 1912, by E. A. Goldman, is a male, with strongly tuberculate chin- 

 shields. The ventrals number 140, the subcaudals 60. 



