1891.] BRITISH CENTRAL, AFRICA. 307 



12. Philothamnus semivariegatus, Smith. 



Ahcetulla semivariegata, Griinth. Proc. Zool. Soc. 1864, p. 307. 



Philothamnus punctatus, Peters, Mon. Berl. Ac. 1866, p. 889, 

 and Reise n. Mossamb. iii. p. 129, pi. xix. A. fig. 1 (1882); Bocage, 

 I.e. p. 14. 



Shire Valley (Kirk) ; L. Nyassa {Universities' Mission). 



13. AmPHIOPHIS^ NOTOT/ENIA. 



Coronella nototcenia, Giinth. Proc. Zool. Soc. 1864, p. 309, 

 pi. xxvi. fig. 1, and Ann. & Mag. N.H. (6) i. 1888, p. 333. 



Ablabes hildebrandtii, Peters, Mon. Berl. Ac. 1878, p. 205, pi. ii. 

 fig. 6 ; Fischer, Jahrb. Hanib. Wiss. Anst. i. 1884, p. 7. 



Tachymenis nototcenia, Peters, Reise n. Mossamb. iii. p. 118 

 (1882). 



Lake Nyassa (ThelivaU) ; Cape McLear, L. Nyassa (Simons). 



14. Psammophis sibilans, L., var. subt^niata, Peters. 



Psammophis sibilans, var. subtceniata, Peters, Reise u. Mossamb. 

 iii. p. 121 (1882); Fischer, Jahrb. Hamb. Wiss. Anst. i. 1884, p. 12. 



Cape McLear, Lake Nyassa (Simons) ; L. Nyassa ( Universities^ 

 Mission). 



15. Psammophis angolensis. 



Amphiophis angolensis, Bocage, Jorn. Sc. Lisb. iv. 1872, p. 82 ; 

 Peters, Sitzb. Ges. naturf. Fr. 1881, p. 149. 



Ablabes homeyeri, Peters, Mon. Berl, Ac. 1877, p. 620. 

 Dromophis angolensis, Boettg. Ber. Senck. Ges. 1888, p. 55. 

 Cape McLear, Lake Nyassa (Simons). 



16. Thelotornis kirtlandi, Hallow. 



Thelotornis kirtlandii, Peters, op. cit. p. 131, pi. xix. fig. 2. 

 Lake Nyassa (Universities' Mission). 



17. Leptodira semiannulata, Gthr. 



Leptodira semiannulata, Giinth. Ann. & Mag. N.H (4) ix. 1872, 

 p. 31. 



Lake Nyassa (Universities^ Mission). 



18. Calamelaps miolepis, Gthr. 



Calamelaps miolepis, Giinth. Ann. & Mag. N. H. (6) i. 1888, 

 p. 323. 



Cape McLear, L. Nyassa (Simons). 



1 Amphio2}his, Smith, is closely allied to Psammophylax. Twelve subequal 

 maxillary teeth, followed by an enlarged, grooved tooth; mandibular teeth 

 subequal. Nasal semidivided; frontal narrow. Eye moderate, with round 

 pupil. Scales smooth, with apical pits. Ventrals roimded. Tail moderate ; 

 subcaudals in two rows. 



