46 TYPHLOPIDA. 
length ; tail broader than long, ending in a spine. 34 to 40 scales 
round the body. Rusty red above, with confluent black spots. 
Total length 685 millim. 
Mozambique. 
71. Typhlops humbo. 
Typhlops (Onychocephalus) humbo, Bocage, Jorn. Sc. Lisb. xi. 1886, 
p- 171. 
Snout very prominent, with sharp cutting edge and inferior 
nostrils. Rostral very large, extending to the level of the eyes, 
the portion visible from below as broad as long ; nasal semidivided, 
the suture proceeding from the first labial; preocular present, 
two thirds the width of the nasal or the ocular, in contact with the 
second, or second and third labials ; eyes rather indistinct, below the - 
suture between the preocular and the ocular; prefrontal, supra- 
oculars, and parietals not or but slightly larger than the scales on 
the body ; four upper labials. Diameter of body 35 or 37 (34 to 41) 
times in the total length ; tail broader than long, ending in a spine. 
38 (or 36) scales round the middle of the body, 34 anteriorly. 
Dark olive above, irregularly dotted with pale olive; pale olive 
inferiorly, mottled with darker. 
Total length 450 millim.; reaches a length of 775 millim. 
Benguela and interior of East Africa. 
a-b. Ad. Mpwapwa, 200 miles in interior of East Africa. 
72. Typhlops mucruso. 
Onvekorspbialics mucruso, Peters, Mon. Berl. Ac. 1854, p. 621, and 
1860, p. 83. 
—— varius, Peters, Mon. Berl. Ac. 1860, p. 82. 
ais Bocage, Jorn. Se, Lish. iv. 1878, p- 249. 
Typhlops CL riparius, Peters, Sitz. Ges. naturf. 
reunde, 1 
5 mucruso, Hee Reise n. Mossamb., iii. p. 95, pl. xiii. fig. 8 
(1882). 
—— varius, Peters, op. cit. p. 97, pl. xiv. fig. 2 & Ps xiv. A. fig. 1. 
—— riparius, Peters, op. cit, p. 98, pl. xiv. a. fig. 
Snout very prominent, with sharp cutting edge and inferior 
nostrils. Rostral very large, extending to the level of the eyes, the 
portion visible from below as broad as long; nasal semidivided, the 
suture proceeding from the first labial ; preocular present, one half | 
to three fifths the width of the nasal or the ocular, in contact with : 
the second, or second and third labials; eyes distinct ; prefrontal a 
and supraoculars a little larger than the ‘scales on the body. Dia- 4 
meter of body 25 to 35 times in the total length; tail as long as ., 
broad or broader than long, ending in a spine. 30 to 36 (38) scales z 
round the middle of the body, 32 to 34 anteriorly. Coloration - | 
of upper parts variable ; lower parts uniform yellowish. 
Total length 480 millim. 
Tropical Africa south of the Equator. 
