144. TAEBOPHIS. 51 



5. TarbopMs variegatns. 



Dipsas variegata, Reinh. Vidensk. iSehk. Skrift. x. 1843, p. 249, pi i 

 figs. 15-17; F. Mm. Verh. Nat. Ges. Basel, vii. 1886, p. 689. 



Eostral broader than deep, scarcely visible from above ; inter- 

 nasals nearly as long as broad, a little shorter than the parietals ; 

 frontal about once and a half as long as broad, longer than its 

 distance from the end of the snout, as long as or a little shorter than 

 the parietals ; nasal divided ; loreal longer than deep; one prse-* 

 and two postoculars; temporals smaU, 2+3 ; seven to nine upper 

 labials, third and fourth or fourth and fifth entering the eye ; three 

 or four lower labials in contact with the anterior chin-shields; 

 posterior chin-shields small and widely separated from each other, 

 or indistinct. Scales in 19 rows. Ventrals 209-226 ; anal divided ; 

 Bubcaudals 62-67. Pale brownish above, with 26 to 30 rather irre- 

 gular dark brown cross-bars, each enclosing a whitish vertebral spot ; 

 head spotted or marbled with brown ; the sutures between the upper 

 labials dark brown ; belly and lower surface of tail yellowish 

 white, spotted with dark brown. 



Total length 590 millim. ; tail 95. 



Guinea. 



a, h. S (V. 218 ; 0. 64) & W. Africa. 



5 (V. 226 ; C. 62). 



6. Tarbophis semiaunulatus. 



Telescopus semiannulatus, Smith, III. Zool. S. Afr'., Rept. pi, Ixxii. 



(1849) ; Bum. ^ Bibr. vii. p. 1058 (1854) ; Peters, Reise n. 



Mossamb. iii. p. 127 (1882). 

 Leptodira semiannulata, Gunth. Ann. Sr Mag. N. S. (4) ix. 1872, 



p. 31 ; Boulmg. The Zool. 1887, p. 179 ; Boettg. Ber. Senck. Ges. 



1887, p. 162. 

 Crotaphopeltis semiannulatus, Booage, Herp. W Angola, p. 122 



(1896). 



Eostral broader than deep, just visible from above ; internasals as 

 long as broad or a little broader than long, usually shorter than the 

 praefrontals ; frontal once and one third to once and a half as long 

 as broad, as long as or a little longer than its distance from the end 

 of the snout, a little shorter than the parietals ; nasal divided ; loreal 

 as long as deep or a little longer than deep ; one prseocular, not 

 reaching the frontal ; two postoculars ; temporals 2 -j- 2 or 3; eight 

 or nine upper labials, third, fourth, and fifth entering the eye ; four 

 or five lower labials in contact with the anterior chin-shieMs ; 

 posterior chin-shields small and widely separated from each other. 

 Scales in 19 rows. Ventrals 206-242 ; anal divided ; subcaudals 

 51-83. Yellowish or pale brovra. above, with 24 to 34 dark brown 



* In the specimens in the ■ Collection the prasoeular does not reach the 

 frontal. 



£2 



