EAST AFRICAN REPTILES AND AMPHIBIANS 19 



b}' the tail and then by the head. It was only 12 feet long. We tied it to a 

 long stick and sent it in by two porters. (Roosevelt, pp. 113-114.) 



I killed a 9-foot python which had swallowed a rabbit. (Roosevelt, p. 157.) 



Family COLUBRIDAE 



Genus NATRIX Laurenti 



NATRIX OLIVACEA (Peters) 



Coronella olivacea Peters, 1854, Monatsber. Akad. Wiss. Berlin, p. 622 (Tette, 



Mozambique) . 

 Tropidonotus olivaceus Boulenger, 1893, Cat. Snakes Brit. Mus., vol. 1, p. 227. 

 Matrix olivacea Barbour and Loveridge, 1928, Mem. Mus. Comp. ZooL, vol. 



50, p. 109. 



1 (U.S.N.M. 49023) Kenya Colony. (Heller) 1911-12. 



2 (U.S.N.M. 62898-9) Morogoro, T. T. (Loveridge) 1916. 



Heller's specimen illustrates how much larger a size the lowland 

 examples of this snake attain; it measures 565 (446+119) mm., 

 whilst the largest of 63 mountain snakes which I collected in 1926 

 only measured 488 (350+ 138) mm. and was much above the average. 

 The scale rows at neck, mid-bod}^, and anus of these three snakes are 

 as follows: 



No. 49023. Scale rows, 21, 19, 17; ventrals, 145; subcaudals, 50. 

 No. 6289S. Scale rows, 19, 19, 17; ventrals, 141; subcaudals, 76. 

 No. 62899. Scale rows, 21, 17, 16; ventrals, 141; subcaudals, 68. 



Genus BOAEDON Dumeril and Bibron 



BOAEDON LINEATUS Dumeril and Bibron 



Boaedon lineatus Dxjm^ril and Bibron, 1854, Erp^t. G6n., vol. 7, p. 363. — 



Stejneger, 1893, Proc. U. S. Nat. Mus., vol. 16, p. 727. 

 Boodon lineatus Boitlenger, 1893, Cat. Snakes Brit. Mus., vol. 1, p. 332. 



1 (U.S.N.M. 16754) Mt. Kilimanjaro, T. T. (Abbott) 1888-89. 



2 (U.S.N.M. 20130-1) Lamu Id., K. C. (Denhardt) 1892. 



2 (U.S.N.M. 40768-9) Wambugu, K. C. (Sm. Afr. Exped.) 1909. 



2 (U.S.N.M. 40895, 41692) Juja Farm, K. C. (Sm. Afr. Expd.) 1909. 



1 (U.S.N.M. 41134) Mt. Kenya to Fort Hall, K. C. (Sm. Afr. Exped.) 



1909. 

 6 (U.S.N.M. 41971-2, 42062, 42067, 49024-5) K. C. (Sm. Afr. Exped.) 

 1909. 



2 (U.S.N.M. 42031, 42034) Nairobi, K. C. (Sm. Afr. Exped.) 1909. 

 2 (U.S.N.M. 48582-3) Mtoto Andei, K. C. (Heller) 1911. 



1 (U.S.N.M. 49076) Kaimosi, K. C. (Heller) 1912. 



1 (U.S.N.M. 49375) ? Kakumega, K. C. (Heller) 1912. 



2 (U.S.N.M. 63479-80) Budonga Forest, U. (Raven) 1920. 



The mid-body scale rows range from 23 to 33; ventrals, 190 to 

 239; subcaudals, 44 to 71; all being within the recognized range of 

 variation of this common and widely distributed species. The 

 largest snake (No. 42031) measures 951 (910 + 41) mm., while the 

 smallest (No. 41971) is only 92 (55 + 37) mm. 



