186 COLUBRID. 
spots and cross-bands; head green above, with or without some 
patches of pinkish speckled with black and a pinkish black-dotted 
streak on each side of the head, passing through the eye; upper 
lip cream-colour, or pink, uniform or spotted with black; one or 
several black blotches on each side of the neck; greyish or ’ pinkish 
beneath, speckled or striated with brown. 
Total length 1180 millim. ; tail 400. 
Tropical and South Africa. 
A, Head uniform green above and on the sides; black blotches 
usually forming cross-bands on the neck. (JL. kirtlandii, 
Hallow. ; O. lecomtei, D. & B.; O. violacea, Fisch.) 
a. 2 (V. 174; ©. 139). Sierra Leone, 
b. 9 (V. 161; C. ?). ae Bippo, Wassau, G. A. Higlett, Esq. 
old Coast. bel 
e. d (V. 168; C. 150). Fantee. 
d. 3 ~ 165 ; C. 139). Ashantee. 
e. 2 (V. 181; C. 146) Oil River. 6 Py H. Johnston 
g 
(V. 170, 168; Gaboon. 
h. 2 aE 177; ©. 160). Eloby district,Gaboon. H. Ansell, i eat Bg 
t. ¢ (V.175; C.170). Mouth of the Loango. Mr. H. Duggan 
k. 2 (V. 165; C. 137). Taveta, E. Africa, oe a a 
i. Skull. Cameroons. UPd 
B. Head with black dots above and on the sides; no cross-bands 
on the neck. (7’. capensis, Smith; D. oatesii, Gthr.) 
a. Hgr., bad state. Victoria Nyanza. Dr, Emin Pasha [C.]. 
b. aye 159; C.?). | Mpwapwa, E. Africa. 
Ma 155; C. 137). Mandala, Brit.C.Africa. Scott Elliot, Esq.[P.]. 
i. 155; c. ihe L. Nyassa. Universities Mission. 
e. af (V. 147; L. Nyassa. m1, Mace M. ere 
rap a iehiia [P.], 
Is fsa 3 (V. 161, 151, Zomba, Brit. C. Africa. Sir H. Johnston 
O. 136, 124, 117) [P.]. 
& 9 (V. 163, 152; 
C. 118, 124). 
lm. g (V. 163; 0.146) Milangi, Brit.C. Africa. Sir H. H. Johnston 
& hgr. (V. Jas; ©, 124), ee 
n. 2 (V. 161; C. ?). Matabele-land. C. G.Oates, Esq. ERs 
(Type of D. oatesii 
177. DISPHOLIDUS. 
Bucephalus (non Baer), Smith, Zool. ages iv. 1829, p. 441; Dum. 
& Bibr. Erp, Gén. vii. p. 875 (1854) ; Giinth, Cat. ol, Sn. p. 148 
C368), Jan, Elenco sist. Ofid. . ’86 (1863); Peters, Reise n. 
Mossamb. iii. p- 182 (1882). 
Dispholidus, Duvernoy, Ann. Se. Nat, xxvi. 1832, 
Dendrophis, part., Sc leg. Phys. Serp. ii. p. 220 (bir). 
Maxillary short, widening behind, where it articulates with the 
