67. rniLoxnAjiNus. 99 



1. Philothamnus semivariegatus. 



? Coluber albiventris, lieuss, Mus. Senckenh. i. 1834, p. 144. 

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



Rept. pis. \\x. & Ix., & Ixiv. fig. 1 (1840). 

 AhastuUa semivariegata, Gilnth. Ann. Sf Mag. N. H. (3) xi. 1863, 



p. l'8o. 

 kirkii, Giinth. Ann. ^- Mag. N. H. (4) i. 1868, p. 424, and Zool. 



Rec. 1869, p. 116. 

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



Decken's Reise, iii. Amph. p. 16, pl. i. fig. 2 (1809), and Reise n. 



Mossamb. iii. p. 129, pl. xix. A. fig. 1 (1882) ; Bocage, Jam. Sc. 



Lish. ix. 1882, p. 14. 

 Dendrophis melanostigma, Jan, Icon. Gen. 32, pl. ii. fig. 3 (1869). 

 ? Philothamnus nigrofasciatus, Buchh. ^ Peters, Mon. Berl. Ac. 1875, 



p. 199. 

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



pl. xiv. figs. -5-7. 



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



Ahffitulla boeagii, 'Giinth. Ann. Sf Mag. N. JS. (6) i. 1888, p. 326. 

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



p. 128. 

 Philothamnus semivariegatus, Bouleng. Proc. Zool. Soc. 189], 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 prtefrontals ; 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 prteocular, in contact with 

 or narrowly separated from the frontal ; two postoculars ; temporals 

 2 + 2 (rarely 2 + 1, 1+2, or 1+1) ; nine upper labials, fifth 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 1G9-207 ; anal divided ; 

 subcaudals 112-155. Green or olive 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. IlgT. (V. 199 ; C. 138). W. Africa. 



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



b. c? (V. 196 ; C. 134). Gambia. Dr. P. EendaU [C.]. 



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



c. S (V. 181 ; C. 122). Palapve, Kalahari E. J. Cuuinghame, 



Desert. Esq. [P.]. 



d. Ilgr. (V. 187 : C. 138). E. Africa. Dr. Livingstone [C.]. 



e. $ (V. 193 ; U. 137). Shiri5 Valley. Sir J. Kirk [G.j. 



h2 



