from the Niger. 33 
the Niger, and presented by him to the British Museum. 
Among the numerous species represented in the collection the 
tollowing may be mentioned as of special interest :—Lygo- 
soma guineense, Ptrs.; Chtmeleon basiliscus, Cope; Ch. parvi- 
lobus, Blgr.; Glauconia narirostre, Ptrs.; Tropidonotus 
variegatus, Ptrs.; Atractaspis trregularis, Rhdt.; A. aterrima, 
Gthr.; and Lana galamensis, D. & B. 
A small collection previously received from Mr. Crosse 
yielded the type of a new Typhlops (T. Crossi’, Blgr.). 
Stmocephalus Crossit, sp. n. 
Eye moderately large. Rostral much broader than deep, 
just visible from above ; internasals broader than long, two 
thirds the length of the preefrontals ; frontal as long as broad, 
as long as its distance from the end of the snout, muel 
shorter than the parietals; loreal deeper than long; one pre- 
and two postoculars; temporals 2+3; seven upper labials, 
third and fourth entering thé eye; four lower labials in 
contact with the anterior chin-shields, which are short, like 
the posterior. Scales strongly keeled, in 17 rows. Ventrals 
234; anal entire; subcaudals 53. Blackish above and on 
the outer ends of the ventrals, yellowish white beneath. 
Total length 410 millim. ; tail 59. 
A single female specimen. 
Dromophis lineatus, D. & B. 
Snout once and a half to once and two thirds as long as the 
eye. Rostral as deep as broad, visible from above ; nostril 
between two shields; internasals one third to one half the 
length of the prefrontals; frontal once and two thirds to 
twice as long as broad, not or but slightly narrower in the 
middle than the supraocular, as long as its distance from the 
end of the snout, as long as or a little shorter than the 
parietals ; loreal once and a half to once and two thirds as 
long as deep; one preocular, not reaching the frontal; two 
(rarely three) postoculars ; temporals 1+1 or 2; eight upper 
labials, fourth and fifth entering the eye; four (rarely five) 
lower labials in contact with the anterior chin-shields, which 
are as long as ora little shorter than the posterior. Scales in 
17 rows. Ventrals 140-159; anal divided; subcaudals 
78-105. Olive, most of the scales black-edged, with three 
greenish-yellow longitudinal lines, one on the vertebral row 
of the scales, the others on the fourth and fifth rows; outer 
row of scales greenish yellow, like the belly, its upper border 
Ann. & Mag. N. Hist. Ser. 6. Vol. xvi. a 
