67. PHILOTHAMNTJS. 99 



1. PMlotliamnus semivariegatus. 



? Coluber albiventris, Beuss, Mm. Senchmb. i. 1834, p. 144. 

 Dendrophis (Philothamnus) semivariegata, Smith, lit. Zool. S, Afr., 



Hept. pis. lix. & Ix., & Ixiv. fig. 1 (1840). 

 AlisBtulla semiTariegata, GnKt?i. Ann. ^ Mag. N. S. (3) xi. 1863, 



p. 285.' 

 kirkii, GUnth. Ann. 8f Mag. N. B. (4) i. 1868, p. 424, and Zool. 



Rec. 1869, p. 116. 

 Philothamnus punctatus, Peters, Men. Berl. Ac. 1868, p. 889, and 



Bechen's Beise, iii. Arnph. p. 16, pi. i. fig. 2 (1869), and Reise n. 



Mossamb. iii. p. 129, pi. xix. A. fig. 1 (1882) : Bocage, Jorn. Sc. 



Lisb. ix. 1882, p. 14. 

 Dendrophis melanostigma, Jan, Icon. G6n. 32, pi. ii. fig. 3 (1869). 

 ? Philotliamnus nigrofasciatus, Buchh. ^ Peters, Mm,. Berl. Ac. 1875, 



p. 199. 

 irregularis, var., Fischer, Abh. not. Ver. Brem. vii. 1881, p. 229, 



pi. xiv. figs. .5-7. 



smithii, Bocage, I. c. p. 12, fig. 



AhsetuUa bocagii, OUnth. Ann. <§• Mag. N. H. (6) i. 1888, p. 326. 

 Leptophis punctatus, Mocquard, M4m. Cent. Soc. Philom. 1888, 



p. 128. 

 Philothamnus semivariegatus, Bouleng. Proc. Zool. Soc. 1891, p. 307. 

 punctatus, var. sansibaricus, Pfeffer, Jahrb. Hamb. Wiss. Anst. 



X. 1893, p. 83. 



Eostral broader than deep, the portion visible from above mea- 

 suring one fourth or one fifth its distance from the frontal ; inter- 

 nasals as long as or a little shorter than the preefrontals ; frontal 

 with concave lateral borders, once and a half to once and two thirds 

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

 the end of the snout, as long as or a little shorter than the parietals ; 

 loreal at least twice as long as deep ; one prseocnlar, in contact with 

 or narrowly separated from the frontal ; two postoculars ; temporals 

 2-1-2 (rarely 2 + 1, 1-1-2, or 1-|-1); nine upper labials, fl.fth and 

 sixth, or fourth, fifth, and sixth, entering the eye ; five lower labials 

 in contact with the anterior chin-shields, which are shorter than the 

 posterior. Scales in 15 rows. Ventrals 169-207 ; anal divided ; 

 subeaudals 112-155. Green or oUve above, with or without black 

 spots or cross bars ; greenish yellow inferiorly. 



Total length 1210 millim. ; tail 450. 



Tropical and South Africa. 



A. Irregular black cross bars ; some of the scales 

 with a whitish spot. 



a. Hgr. (V. 199 ; C. 138). W. Africa. 



B. No black spots or bars ; some of the scales with a whitish spot. 



b. S (V. 196 ; 0. 134). Gambia. Dr. P. RendaU [0.]. 

 C. With black spots, at least on the anterior part of the back. 



e. S (V. 181 ; C. 122). Palapye, Kalahari R. J. Cuninghame, 



Desert. Esq. [P.]. 



d Hgr. (V. 187 ; C. 138). E. Africa. Dr. Livingstone [C.]. 



e. $ (V. 193 ; C. 137). ' Shir6 Valley. Sir J. Kirk [0.]. 



h2 



