6. MONOPELTIS.—7. RHINEURA, 459 
large anal shields; no pores. Brown above, whitish inferiorly ; 
anterior head-shield yellow. 
millim. 
Length to vent .............. 264 
Vail. sa cienateaces ketenes 16 
Diameter of body ............ 10 
Mossamedes, 8.W. Africa. 
10. Monopeltis jugularis. 
Monopeltis (Phractogonus) jugularis, Peters, Mon. Berl. Ac. 1880, 
p. 219, pl. —. fig. I. 
Lepidosternon jugulare, Strauch, Mél. Biol. Ac, St. Petersb. xi. p. 469. 
A small rostral separates the nasals; two large shields covering 
the head, the posterior narrower and a little shorter than the 
anterior ; a pair of band-like oceipitals ; ocular small, eye distinct ; 
three upper labials, third largest; mental roundish, followed by 
a large subcordiform chin-shield; three lower labials, third very 
large. Two hundred and six annuli on the body and thirteen on 
the tail; an annulus contains thirty to thirty-five segments, sixteen 
to nineteen dorsals and fourteen to sixteen ventrals; latter, two 
median rows broadest. Pectoral shields small, thirty-six, commencing 
immediately behind the gular fold, forming U-shaped rows. Six 
anal segments, the median pair very large; no pores. Yellowish, 
each segment with a brown spot, which is smaller and darker on the 
dorsal segments than on the ventrals. 
millim. 
Length to vent .............. 510 
Baa csc ad sc wish alae lbtads ate ure wi 29 
Diameter of body ............ 22 
West Africa. 
11. Monopeltis koppenfelsii. 
Lepidosternon koppenfelsii, Strauch, Mél. Biol. Ac. St, Petersd, xi. 
p. 469. 
Allied to M. jugularis ; distinguished by the presence of a pra- 
ocular, and the sternal shields not beginning immediately after the 
gular fold. Two hundred and eight annuli on the body and thirteen 
on the tail; an annulus on the body comprises thirty-two or thirty- 
four segments, sixteen to eighteen on the dorsal and sixteen on the 
ventral side; the two median ventral segments much broader than 
long. 
Length to vent 338 millim.; tail 22 millim. 
Gaboon. 
7. RHINEURA. 
Rhineura, Cope, Proc. Ac. Philad. 1861, p. 75. 
Nostril pierced in a small nasal on the lower surface of the snout, 
Head depressed, with broad projecting snout with angular edge 
