On a new Snake from German East Africa. 281 BATEACHIA. 1. Rappia tristis, Bocage. — Zambi. Known from a single specimen from Angola. 2. Rappia marmorata^ Rapp. — Zambi. 3. Bufo regularise Reuss. — Zambi. I seize this opportunity to point out that the three specie? recently described by Mocquard (C. E.. Congr. Intern. Zool. Leyde, pp. 232-234) from the Upper Ubangi in the French Congo are not new. Mabuia V iancini , ^locc[., = M. Buetineri, M.a,tschie ; Rana ouhanghiensisj Mocq., = ij!. galamensis, D. & B. ; and, as recognized by the author himself, Naia yakomcBj Mocq.,= N. Goldii, Blgr. XXVII. — Description of a new Snake from Usamhara, German East Africa. By G. A. BOULENGER, F.R.S, Leptodira Werneri. Body feebly compressed. Rostral once and two thirds as broad as deep, scarcely visible from above ; internasals much shorter than the pra^frontals ; frontal once and a half as long as broad, longer than its distance from the end of the snout, shorter than the parietals j loreal deeper than long ; one praj-ocular, not reaching the frontal ; two or three postoculars ; temporals 1 + 2; eight upper labials, third, fourth, and fifth entering the eye ; four lower labials in contact with the ante-rior chin-shields, which are a little longer than the posterior. Scales in 19 rows. Ventrals 225; anal entire ; subcaudals 101. Pale grey-brown above, uniform on tlie head and on the anterior part of the body, the rest of the body and the tail with darker spots more or less confluent into closely-set cross-bands ; upper lip yellowish white ; ventrals yellowisli white, mostly edged with dark brown on the sides ; sub-caudals brown. Total length 370 millim. ; tail 85. A single specimen, presented to the British Museum by Dr. F. Werner.