SNAKES OF WEST AFRICA. 289 



Two species :- 



■Snout with angular horizontal edge, curved in profile ; 2 or 3 



superposed anterior temporals ; subcaudals 90-110 B. o-vi/vhynclms. 



:Snout obtusely pointed; 1 or 2 anterior temporals; subcaudals 



64-88 jB. tofioensis. 



1. Rhamphiophis oxyrhynchus. 



Fsammophis oxyrhynchus Reinh. Vid. Selsk. Skr. x. 1843, 

 p. 244. 



Rhamphiophis oxyrhj/ncMis Bouleng. t. c. p. 146. 

 Tropical Africa, as far north as the Gold Coast. 



2. Rhamphiophis togoensis. 



Psammojjhis togoensis Matschie, Mitth. Deutsch. Schutzgeb. 

 vi. 1893, p. 212. ' 



Rhamiihiophis togoensis Bouleng. t. c. p. 147. 

 Togoland, N. Nigeria. 



8. Dromophis. 

 Peters, Mon, Berl. Ac. 1869, p. 447; Bouleng. Cat. Sn. iii. p. 149. 



Two species : — 



Scales in 17 rows ; veiitrals 140-159 : subcaudals 78-105 B. liiieatus. 



Scales in 15 rows ; ventrals 161-180; subcaudals 110-122 D. prceornatus. 



1. Dromophis lineatus. 



Dryopliylax lineatus Duin. &i Bibv. Erp. Gen. vii. p. 1124. 



Dromo2}hAs lineatus Bouleng. 1. c. 



Coast of Guinea to Egyptian Soudan and Zanzibar Coast. 



2. Dromophis pr^ornatus. 



JDendrojjhis pirceornatus Schleg. Phys. )Serp. ii. p. 236, 

 . Dromophis 2:)r(eo7'naiiis Bouleng. t. c. p. 150. 

 Gold Coast to Niger. 



9. Psammophis. 

 Boie, Isis, 1827, p. 521 ; Bouleng. Cat. Sn. iii. p. 152. 



Synopsis of the Species. ^ 



I. Rostral well visible from above; snout 1^ to 2 times as long as 03 e; sub- 



caudals 64-149. 



A. Frontal narrower than the supi-aocular ; anal divided. 



Loreal 3 to 4 times as long as deep ; usuall}' 9 upper labials, 5th and 6th 



entering the eye F. scJiokari. 



Loreal If to 2| times as long as deep; usually 8 upper labials, 



4th and 5th entering the eye P. sihilans. 



B. Frontal as broad as the supraocular ; loreal 2\ times as long as 



deep ; 8 upper labials, 4th and 5th entering the eye ; anal 



entire -P. regularis. 



II. Rostral scarcely visible from above; snout 2 to 2\ times as 



long as eye ; loreal 3 to 4 times as long as deep ; 9 upper 



labials, 5tli and 6th entering the eye ; subcaudals 144-172 ... F. elegans. 



