69. HAPSIDOPHRYS. 103 
1. Gastropyxis smaragdina. 
Dendrophis smaragdina, Schleg. Phys. Serp. ii. p. 237 (1837). 
Leptophis gracilis, Hallow. Proc. Ac. Philad. 1844, p. 60. 
smaragdinus, Dum. § Bibr. vii. p. 537 (1854); Hallow. Proe. 
Ac, Philad. 1854, p. 100; A. Dum. Arch. du Mus. x. 1860, p. 199, 
pl. xvii. fig. 6; Jan, Icon. Gén. 49, pl. vi. fig. 4 (1879). 
Hapsidophrys cceruleus, Fischer, Abh. nat. Ver. Hamb, iii, 1856, 
p- 111, pl. ii. fig. 6; Giinth. Cat. p. 145 (1858). 
Aheetulla smaragdina, Giinth. Cat. p. 151. 
Gastropyxis smaragdina, Cope, Proc. Ac. Philad. 1860, p. 558. 
Hapsidophrys smaragdina, Reichen. Arch. f. Nat. 1874, p. 292; 
Boettg. Ber, Senck. Ges. 1888, p. 62, and 1889, p. 279. 
Rostral broader than deep, visible from above ; internasals longer 
than the prefrontals ; frontal once and a half as long as broad, as 
long as or a little longer than its distance from the end of the 
snout, as long as or slightly shorter than the parietals ; loreal twice 
to thrice as long as deep, sometimes confluent with the preefrontal ; 
one preocular, in contact with or narrowly separated from the 
frontal; two postoculars; temporals 1+2; nine (rarely eight) 
upper labials, fifth and sixth (or fourth and fifth) entering the eye ; 
five or six lower labials in contact with the anterior chin-shields, 
which are shorter than the posterior. Scales in 15 rows, all 
strongly keeled and distinctly striated. Ventrals 150-174; anal 
divided ; subcaudals 140-172. Dark bluish green above, pale green 
beneath and on the upper lip; a blackish streak on each side of the 
head, passing through the eye. 
Total length 980 millim.; tail 390. 
West Africa, from Sierra Leone to the Gaboon. 
a. & (V. 157; C. 140). Sierra Leone. H. C. Hart, Esq. [P.]. 
b. go (V. 155; C. 152). Sierra Leone. 
c,d. 2 (V. 156; C. 144)  Ashantee. 
ao ye ( Velpos C.D). 
ef. 9 (V. 154; C. 147) Ancobra River, Major Burton and Capt. 
& yg. (V. 157; C.?). Gold Coast. Cameron [P.]. 
r CV: 162)" Cee). Niger. Mr. Fraser [C.]. 
hz. 2 (V. 169; C. 161) Akassa,mouth of Dr. J. W. Crosse [P.}. 
ng 
& her: (V.1715 C172). Niger. 
kl. 9 (V. 171,172; C.?, Oil River. H. H. Johnston, Esq. 
145). EP: 
m. 3 (V. 164; ©. 166). Fernando Po. 
n. 9 (V. 153; C. 146). Guinea. Leyden Museum. 
o-p. 9 (V.157,161; C.148, Eloby district, H. Ansell, Esq. [ P.]. 
147). Gaboon. 
69. HAPSIDOPHRYS. 
Hapsidophrys, part., Fischer, Abh. naturw. Ver. Hamb. i. 1856, 
p- 110; Giinth. Cat. Col. Sn. p. 144 (1858) ; Jan, Elenco sist. Ofid. 
p- 86 (1863). 
Maxillary teeth 30 to 32, posterior longest; mandibular teeth 
subequal. Head distinct from neck; eye very large, with round 
pupil. Body cylindrical ; scales keeled, with apical pits, in 15 rows ; 
