346 COLUBRID^. 



2. Simocephalus guirali. 



Heterolepis bicarinatus {noti D. Sf B.), Sauvage, Bull. Soc. Philoin. 



(7) viii. 1884, p. 145. 

 guirali, Mocquard, Bull. Soc. Philom. (7) xi. 1887, p. 23, pi. ii. 



fig. 3. 



Rostral much broader than deep, just visible from above ; inter- 

 nasals broader than long, two thirds the length of the praefrontals ; 

 frontal as long as broad or slightly longer, as long as the prge- 

 frontals, much shorter than the parietals ; loreal as long as deep ; 

 one pra3- and two postoculars ; temporals l-|-2; seven upper 

 labials, third, fourth, and fifth entering the eye ; five lower labials 

 in contact with the anterior chin-shields, which are a little longer 

 than the posterior. Scales strongly keeled and striated, the stria- 

 tions directed obliquely towards the keels, in 15 rows (17 on the 

 neck). Yen trals 248-255 ; anal entire; subcaudals 60-70. Black 

 above, the lateral scales tipped with yellow ; lower parts yellow ; a 

 black spot at the outer end of each ventral ; subcaudals brown in 

 front. 



Total length 1260 millim. : tail 160. 



Coast of Guinea. 



a-h. 5 (V. 248 ; 0. 60) & Oil River District. H.H.Johnston, Esq. 



yg.(V.248; C. 70). [P.]. 



3. Simocephalus poensis. 



Heterolepis poensis, Smith, III. Zool. S. Afr., Bept. (1847) ; Boettg. 



Ber. Sench. Ges. 1889, p. 279 ; Boulemj. Ann. Sf Mag. N. II. (6) 



viii. 1891, p. 346. 

 bicarinatus, Dum. Sf Bibr. vii. p. 422 (1854) ; Jan, Icon. Gen. 



36, pi. vi. tig. 5 (1870) ; Mocquard, Bull. Soc. Philom. (7) xi. 



1887, p. 19, pi. i. fig. 2. 

 Simocephalus poensis, Gdnth. Cat. p. 194 (1858), and Ann. S)- Mag. 



N. H. (3) xii. 1803, p. 360 ; Bocage, Jorn. Sc. Lisb. iv. 1873^ 



p. 218. 



Rostral nearly twice as broad as deep, just visible from above ; 

 interuasals broader than long, one half or three fifths the length of 

 the prefrontals ; frontal a little longer than broad, as long as its 

 distance from the rostral, much shorter than the parietals ; loreal 

 as long as deep or a little longer ; one prae- and two postoculars ; 

 temporals l4-2; seven upper labials, third and fourth entering the 

 eye ; five lower labials in contact with the anterior chin-shields, 

 which are a little longer than the posterior. Scales strongly 

 keeled, secondary keels feebly marked or absent, in 15 rows (17 on 

 the neck). Ventrals 240-256 ; anal entire ; subcaudals 75-124. 

 Blackish above and on the outer ends of the ventrals, yellow 

 inferiorlv. 



Total 'length 1200 millim. ; tail 220. 



West x\frica. 



