Ne oe Se ae ange ee 
7 ie “he 
sides ‘ a 
foe on ae 
; : 
258 COLUBRID. 
Aparallactus concolor, Bouleng. Ann. §& Mag. N. H. (6) xvi. 1895, 
p- 172. 
Diameter of eye equal to or greater than its distance from the 
oral margin. MRostral broader than deep, the portion visible from 
above one half to two thirds as long as its distance from the F 
frontal; internasals shorter than the preefrontals ; frontal once and Pa 
a half to twice as long as broad, much longer than its distance from _ 
the end of the snout, as long as or slightly shorter than the ' 
parietals; nasal entire, not in contact with the prwocular; one 
postocular; temporals 1+1,; seven upper labials, third and fourth 
entering the eye, second in contact with the prefrontal, fifth in 
contact with the parietal; first lower labia] in contact with its 
fellow behind the symphysial ; two pairs of chin-shields, posterior 
longest, anterior in contact with four labials. Scales in 15 rows. 
Ventrals 145-158 ; anal entire; subcaudals 55-71. Uniform dark 
brown or black, somewhat lighter beneath. 
Total length 460 millim., ; tail 110. 
Eastern Central Africa. 
a. ¢ (V. 152; C, 55). Lado, Dr, Emin Pasha [P.]. 
b. Hgr. (V. 145; C. 61). Steppes E. of Izavo. Mp) . W. Gregory 
c. 2 (V.158; C.71).  Boran Country. Des ap Smith 
4. Aparallactus lunulatus. 
| 
4 
Uriechis lunulatus, Peters, Mon. Berl. Ac. 1854, p. 623, and Reise n. 
Mossamb. iii. p. 113, pl. xviii. fig. 2 (1882) ; Giinth. Ann. §& Mag. ; 
N. H. (6) i. 1888, p. 324. 
ppeigronns lunulatus, Bouleng. Ann. § Mag. N. H. (6) xvi. 1895, 
p. 172. 
Diameter of eye equal to or greater than its distance from the 
oral margin. MRostral broader than deep, the portion visible from 
above measuring about one third its distance from the frontal ; F 
internasals shorter than the prefrontals ;. frontal once and two ’ 
thirds as Jong as broad, much longer than its distance from the end ) 
of the snout, as long as the parietals; nasal divided, in contact 
with the preocular ; one postocular ; temporals 1+1; seven upper 
Jabials, third and fourth entering the eye, fifth in contact with the 
parietal ; first lower labial in contact with its fellow behind the 
symphysial ; two pairs of chin-shields, subequal in size, the anterior 
in contact with four lower labials. Scales in 15 rows. Ventrals 
151-158 ; anal entire; subcaudals 52-58. Olive or pale brown 
above, each scale edged with darker, anteriorly with several 
blackish cross-bars followed by small spots; the first cross-bar 
largest and forming a collar; whitish beneath. 
Total length 390 millim. ; tail 85. 
Eastern Central Africa, Mozambique. 
a. d (V. 155; ©. 52). Lake Tanganyika, Sir J, Kirk [C.}. 
b. og (V. 151; C, 57). Lake Nyassa, 
