67. PHILOTHAMNUS. 99 



1. Philothamnus semivariegatns. 



P Coluber albiventris, Reuss, Mus. Senckenb. i. 1834, p. 144. 

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



Rept. pis. lix. & lx., & Ixiv. fig. 1 (1840). 

 Ahaetulla semivariegata, Giinth. Ann. fy Mag. N. II. (3) xi. 1863, 



P. 88& 

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



Rec. 1869, p. 116. 

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



Decken'g Reise, iii. Arnph. p. 16, pi. i. fig. 2 (1809), and Reise n. 



Mogsamb. iii. p. 129, pi. xix. A. fig. 1 (1882) ; Bocaye, Jorn. Sc. 



Lisb. ix. 1882, p. 14. 



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

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



p. 199. 

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



pL xiv. figs. 5-7. 



smith ii, Bocage, 1. c. p. 12, fig. 



Ahaetulla bocagii, Giinth. Ann. Sf Mag. N. H. (6) i. 1888, p. 326. 

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



p. 1 



Philothamnus semivariegatus, Bouleng. Proc. Zool. Soc. 1801, p. 307. 

 punctatus, var. sansibaricus, l^feffer, Jahrb. Hamb. Wiss. Anst. 



x, 1893, p. 83. 



Rostral 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 praefrontals ; 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 praeocular, 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 lubials 

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

 posterior. Scales in 15 rows. Ventrals 109-207 ; 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. Hgr. (V. 199; C. 138). W. Africa. 



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

 6. rf (V. 190; C. 134). Gambia. Dr. P. Kendall [C.]. 



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



c. c? (V. 181 ; C. 122). Palapve, Kalahari R. J. Cuninghame, 



DeV,rt. 'Esq. [P.]. 



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



e. $ (V. 193; C. 137). Shire" Valley. Sir J. Kirk [C.]. 



