46 TYPHLOPIDJE. 



length ; tail broader than long, ending in a spine. 34 to 40 scales 

 round the body. Kusty red above, with confluent black spots. 



Total length 685 millim. 



Mozambique. 



71. Typhlops humbo. 



Typhlops (Onychocephalus) humbo, Socage, Jorn. Sc. Lish. 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 ; pr^ocular 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 proeocular and the ocular ; praefrontal, 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-h. Ad. Mpwapwa, 200 miles in interior of East Africa. 



72. Typhlops mucruso. 



Onychocephalus mucruso, Peters, Mon. Berl. Ac. 1854, p. G21, and 



1860, p. 83. 



varius, Peters, Mon. Berl. Ac. 1860, p. 82. 



petersii, Boeage, Jorn. Sc. Lisb. iv. 1873, p. 249. 



Typlilops (Onychocephalus) riparius, Peters, Sitzb. Ges. naturf. 



'Fretmde, 1881, p. 50. 

 mucruso, Peters, Reise n. Mossamb. iii, p. 95, pi. xiii. fig. 3 



(1882). 



varius, Peters, op. cit. p. 97, pi. xiv. fig. 2 & pi. xiv. A. fig. 1. 



riparius, Peters, op, cit. p. 98, pi. xiv. a. fig. 2. 



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 ; proeocular 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 ; praefrontal 

 and supraoculars a little larger than the scales on the body. Dia- 

 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 

 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. 



