122 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 91 



Midbody scale rows 17 ; ventrals 152-161 ; anal divided ; subcaudals 

 91-99 ; labials 7-8, fourth or fifth entering the orbit ; temporals 2 + 3, 

 the lower anterior longer than its distance from the loreal. Larger, 

 the ? , measures only 312 (228 +84) mm. 



BOIGA BLANDINGII (Hallowell) 



1844. Dipsas Blandingii Hallowell, Proc. Acad. Nat. Sci. Philadelphia, 1844, 



p. 170 (Liberia). 

 1856. Dipsas valida Fischek, Abh. Nat. Ver. Hamburg, vol. 3, p. 87, pi. 3, 



fig. 4 (Edina, Grand Bassa County, Liberia). 

 1856. Dipsas globiceps Fischek, Hid., p. 89, pi. 3, fig. 6 (Edina, Grand Bassa 



County, Liberia). 



$ (U.S.N.M. No. 109306), Bromley 



Midbody scale rows 21; ventrals 264; anal entire; subcaudals 135; 

 labials 8, the third, fourth, and fifth entering the orbit. Total length 

 1,415 (1,085 + 330) mm. 



CROTAPHOPELTIS DUCHESNII GUINEENSIS (Chabanand) 



1920. Leptodira guineensis Chabanaud, Bull. Com. fitudes Hist. Sci. Afrique 

 Occ. Frangaise, 1920, p. 491 (Dieke, Nzerekore region, French Guinea). 



5 (U.S.N.M. No. 109645), Harbel 



Midbody scale rows 17; ventrals 223; anal entire; subcaudals 111; 

 labials 8, third, fourth, and fifth entering the orbit; loreal sharply 

 distinct, not entering orbit. Total length 733 (547+186) mm. In 

 its oviducts (March 10-July 17) are 4 eggs, each measuring about 

 27 by 8 mm. 



This species is the genotype of Dipsoglyphophis Barbour and 

 Amaral, 1927, and I should prefer to recognize this name for the 

 group of chunky-headed, attenuate, long-tailed, arboreal snakes (as 

 distinct from the moderate, short-tailed, terrestrial species like C. h. 

 hotamboeia) rather than force them into the genus Dipsadohoa 

 (which differs in possessing large vertebrals and single subcaudals) 

 as has been advocated by Bogert (1940, p. 65). Admittedly they 

 occupy an intermediate position between G. h. hotarriboeia and D. 

 unicolor, but in head shape C. shrevei conforms to hotamboeia rather 

 than to its long-tailed relatives. Nor can I agree with the synonymiz- 

 ing of guineensis with duchesnii Boulenger, from which it differs in 

 several particulars, so that I should have preferred to let it remain 

 as a full species until more material is available, but I compromise in 

 reviving it to subspecific rank. 



