34 BULLETIN 151, UNITED STATES NATIONAL MUSEUM 



Genus APARALLACTUS Smith 



APARALLACTUS JACKSOND (Gunther) 



Uriechis jacksonii Gunther, 1888, Aun. Mag. Nat. Hist., ser. 6, vol. 1, p. 325, 



pi. 19, fig. E. 

 Aparalladus jacksonii Boulenger, 1896, Cat. Snakes Brit. Mus., vol. 3, p. 256. — 



LovERiDGE, 1923, Proc. Zool. Soc. London, p. 889. 



3 (U.S.N.M. 62919-21) Mount Longido, T. T. (Loveridge) 1916. 



Mid-body scale rows, 15; ventrals, 134 to 144; anals single; sub- 

 caudals, 35 to 42 single; labials, 6 or 7, the third and fourth entering 

 the orbit. In No. 62919 the symphysial is in contact with the chin 

 shields. 



The thin, black vertebral Une of the type is lacking in two of the 

 specimens, which are paler than the third; the latter has, in addition 

 to the vertebral line, a row of white lateral scales bordered above and 

 below by black dots, which would, if confluent, form lateral lines. 



APARALLACTUS CONCOLOR (Fischer) 



Uriechis concolor Fischer, 1884, Jahrb. Hamb. Wiss. Anst., vol. 1, p. 4, pi. 1, 



fig. 1. 

 Aparalladus concolor Boulenger, 1896, Cat. Snakes Brit. Mus., vol. 3, p. 257; 



1896, Proc. Zool. Soc. London, p. 216. 

 Elapops modestus Angel (not of Gunther), 1925, Reptiles et Batraciens in 



Voyage de Ch. Alluaud et R. Jeannel en Afrique Orientale (1911-12). 



Paris, p. 36. 



1 (U.S.N.M. 48589) Mtoto Andei, K. C. (Heller) 1911. 



I should like to take this opportunity of correcting the erroneous 

 record of the occurrence of the West African Elapops modestus at 

 Bura, in the Wataita country of Kenya Colony. Through the kind- 

 ness of Mons. Angel I have been enabled to examine this snake which 

 appears to be the most southerly record for A. concolor. It only 

 differs from that species in that the posterior chin shields are shghtly 

 shorter, not longer, than the anterior. It has 154 ventrals and 45 

 subcaudals. 



The Mtoto Andei snake has 15 mid-body scale rows; ventrals, 155; 

 anal entire; subcaudals, 59; labials 7, the third and fourth entering 

 the eye. In these characters as well as all others the snake agrees 

 perfectly with the description as given by Boulenger. 



APARALLACTUS CHRISTYI Boulenger 



Aparallactus christyi Boulenger, 1910, Ann. Mag. Nat. Hist., ser. 8, vol. 5, 

 p. 512. 



1 (U.S.N.M. 66929) between Abyssinia and K. C. (Mcarns) 1912. 



Mid-bod}^ scale rows, 15; ventrals, 172; anal single; subcaudals, 49 

 single; labials, 7, the third and fourth entering the orbit. The type, 

 collected in the Mabira Forest, Uganda, is, I believe, the only other 



