470 AMPHXSBJaNID^. 



B. EMPHYODONTES. 

 Emphyodontes, Wiegm, Herp. Me.v. p. 21. 



9. TROGONOPHIS. 



Trogonopliis, Kaup, Isis, 1830, p. 880 ; Wiegm. Arch. f. Nat. 1836, 

 p. 158 ; Dum. ^ Bibr. v. p. 467 ; Gray, Cat. Tort. 1844, p. 68, and 

 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 

 prseanal pores. 



North-west Africa. 



1. TrogonopMs wiegmanni. 



Trogonophis wiegmanni, Gray, Cat. Tort. p. 68, 

 and Sh. Rept. ii. p. 33. 

 Trogonophis wiegmanni, Kaup, I.e. pi. viii. fig. a; Dum. Sr Bibr. v. 

 p. 469 ; Gen: Ann. Sc. Nat. (3) xx. 1853, p. 308, pi. xv. figs. 3, 4 ; 

 Stranch, Mel. Biol. Ac. St. Petersb. xi. 1881, p. 373. 

 Amphisbfena elegans, Gerv. Mag. Zool. 1836, p. 3, pi. xi. 

 wiegmanni, Schleg. in Wagn. Pels, Alg. iii. p. 122, pi. vi. 



Praemaxillary teeth 5 ; maxillaries 4 — 4 ; mandibulars 8 — 8. 

 Head moderately depressed, with obtuse, slightly projecting snout. 

 E-ostral 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 ; lour 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 



Tail 19 



Diameter of body 17 



Algeria ; Morocco. 



a-c. Ad. (Ann. 142 to 144 Taugiers. Mr. Eraser [C.]. 



+12). 

 d, e-f. Hgr. (A. 147 -f 13, Mogador. Rev. Pt. T. Lowe [P.]. 



148+13, 1504-14). 

 g-h. Hgr (A. 141, 145-1- Orau. Rev. A. Levi [P.]. 



12, 14). 

 i. llgr. (A. 144-f 13). Algiers, Prof. Dumeril [P.]. 



