470 AMPHISBRNIDS. 
B, EMPHYODONTES. 
Emphyodontes, Wiegm. Herp, Mea. p. 21. 
9. TROGONOPHIS. 
880; Wiegm. Arch. f. Nat. 1836, 
Trogonophis, Kaup, Isis, 1830, P A Oa sd 
ray, Cat. Tort. , Pp. 68, 
p. 158; Dum. § Bibr. v. p. 46 
Proc, Zool, Soc. 1865, p. 445. 
Nostril pierced in a large nasal; two pairs of upper head-shields. 
A vertebral line and a stronger lateral line. Tail conical. No 
preanal pores, 
North-west Africa. 
3 
1. Trogonophis wiegmanni. 
Trogonophis wiegmanni, Gray, Cat. Tort. p. 68, 
and Sh. Rept. ii. p. 38. 
Trogonophis wiegmanni, Kaup, i. ¢. pl. viii. fig. a; Dum. & Bibr. v. 
p. 469; Gerv. Ann, Se. Nat. (8) xx. 1853, p. 308, pl. xv. figs. 3, 4; 
Strauch, Mél. Biol, Ac. St. Petersb. xi. 1881, p. 373. 
Amphisbena elegans, Gerv. Mag. Zool. 1836, p. 3, pl. xi. 
— wiegmanni, Schleg. in Wagn. Reis. Alg, iii. p. 122, pl. vi. 
Premaxillary teeth 5; maxillaries 4—4; mandibulars 8—8, 
Head moderately depressed, with obtuse, slightly projecting snout. 
Rostral large, pentagonal, its posterior angle wedged in between the 
nasals, which are large and form a short suture; a pair of large 
frontals, followed by a pair of small postfrontals; eye distinct 
through the small ocular; a supraocular; two infraoculars; a 
loreal; five upper labials, second and fifth smallest. Mental 
trapezoid, in contact with a small pentagonal anterior chin-shield ; 
three pairs of lateral chin-shields, anterior largest, with a small 
shield wedged in between them posteriorly; four lower labials, 
second largest. Body short. One hundred and thirty-six to one 
hundred and fifty-one annuli on the body and twelve to fourteen 
on the tail; on the middle of the body an annulus contains fifty to 
sixty-four segments, viz. twenty-two to thirty dorsal and twenty- 
eight to thirty-four ventral; lateral line strongly marked; a feebly 
marked vertebral line, Anal segments six or eight, median pair 
largest. Yellowish, checked with brown. 
millim 
Length to vent .............. 240 
Daas. 3: sacs ane ganch eaieca gataaws Mes 19 
Diameter of body ............ 17 
Algeria ; Morocco. 
a-c, Ad. (Ann, 142 to 144 — Tangiers. My. Fraser [C.]. 
+12). 
d, e-f. Hgr. (A. 147+18, Mogador. Rey. R. T. Lowe [P. ]. 
148418, 150414). 
g-h. Hgr (A. 141, 1454+ Oran. Rev. A. Levi [P.]. 
12, 14). 
7. Hgr. (A. 144413). Algiers. Prof. Duméril [P.]. 
