EAST AFRICAN REPTILES AND AMPHIBIANS 23 



The largest snake (No. 49007) measures 920 (645 + 275) mm. and 

 the smallest 233 (168 + 65) mm. The former is, I believe, the largest 

 specimen recorded and far exceeds any which I have examined in the 

 fine series in the Nairobi Museum. 



CHLOROPHIS NEGLECTUS variety 



1 (U.S.N.M. 41701) Naivasha, K. C. (Sm. Afr. Exped.) 1909. 



1 (No tag) ? Kenya Colony. 



These two snakes differ from the long series of C. negledus in the 

 National Collection in having an undivided anal like the West 

 African C. lieterodermus. No. 41701 has 15 mid-body scale rows; 

 167 ventrals, single anal; 105 subcaudals; 8 labials, of which the 

 fourth and fifth enter the orbit. The other agrees except for 164 

 ventrals and 104 subcaudals. The smaller has the ventral keel very 

 wealdy defined, yet I consider both to be but aberrations of C. 

 negledus. 



CHLOROPHIS ? HETEROLEPIDOTLS (Gunther) 



Ahaetulla heterolepidota Gunther, 1863, Ann. Mag. Nat. Hist., ser. 3 (7) vol. 11, 



p. 286. 

 Chlorophis heterolepidotus Boulenger, 1894, Cat. Snakes Brit. Mus., vol. 2, p. 95. 



Head only (U.S.N.M. 42479) Rhino Camp, L. E. (Sm. Afr. Exped.) 

 1910. 



This head has 9 labials on the right, 10 on the left side, with fifth 

 sixth, and seventh entering the orbit of both. The anterior ventrals 

 show a keel, but it is impossible to say whether the specimen should be 

 referred to C. heterolejndotus or C. irregularis of Leach. 



CHLOROPHIS IRREGULARIS (Leach) 



Coluber irregularis Leach, 1819, in Bowdich, Miss. Ashantee, p. 494. 

 Chlorophis irregularis Boulenger, 1894, Cat. Snakes Brit. Mus., vol. 2, p. 96. 



2 (U.S.N.M. 49002, 49387) Kaimosi, K. C. (Heller) 1912. 



Mid-body scale rows, 15; ventrals, 167 to 171; subcaudals, 132; 

 tail of one mutilated; labials, 9 in one, 10 in the other, both with 

 fourth, fifth, and sixth entering the orbit. Temporals, 1+2, 2 + 1, 

 and 2 + 2. In passing, it might be remarked that C. irregularis forms 

 a connecting link between the genera Chlorophis and Philothamnus. 

 In the specimens before me the subcaudal scales are undoubtedly 

 slightly keeled and notched and on examining typical West Coast 

 irregularis in the collection of the Museum of Comparative Zoology 

 I find that this is also sometimes the case though other examples 

 conform to the typical condition of Chlorophis. There do not appear 

 to be any good characters by which to differentiate these two genera 

 though for the present it is perhaps better to keep them distinct. 

 The perfect snake measures 810 (535 + 280) mm. 



