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Show 1888.] EQUA'IORIAL AFRICA. 9 These specimens vary very considerably in the colour of the belly-hairs, which in some of them, notably in a, are pure white, while in others they are of the usual dull grey and white found in Western Coast specimens. 19. SCIURUS ANNULATUS, Desm. a. 2 - Lado, 16/2/84. b. 3- Tobbo, 18/5/83. c. 2- Tobbo, 18/5/83. 20. SCIURUS PYRRHOPUS, F. Cuv. a. 3- Tingasi, 16/9/83. b. 2 - Tingasi, 10/10/83. "Iride fusca. ' Kejo.'"-E. Specimen a has the hairs of the belly, usually pure white, richly washed with red. S. stangeri, S. rufobrachiatus, and the present species are all strictly West-African forms, this being by far their most easterly recorded locality. 21. SCIURUS BOEHMT, Reichen. a, b. 3 & 2 • Tangasi, 7 and 9/83. c, d. 3 & 2. Stat. Gadda, 2 and 3/84. e. 3 . Nendja (Monbuttu), 9/7/83. /• c.. " • Nangeri.' C o m m o n from 4° N . lat. southwards. As yet only taken to the west of the Bahr el Djebel."-E. These beautiful little Squirrels quite agree with the description given by Dr. Reichenow (Zool. Auzeiger, 1886, p. 315) of some specimens obtained by Dr. R. B o h m in the Marungu country, at the south-west corner of Lake Tanganyika. Whether the species is really distinct from S. congicus, Kuhl, is a question which will have to be decided later, when further specimens are available from other localities. It appears to m e to be by no means improbable that not only will S. boehmi be found to grade into S. congicus, but that the latter also will equally pass into S. poensis, Smith, of which I have seen specimens with just a faint indication of a whitish back-stripe. This stripe then becomes bright and prominent in S. congicus, with a darker band below and external to it; while further, in S. boehmi this latter dark band is quite black, and is supplemented internally by a second even more prominent black stripe. These gradations from the normally wholly unstriped S. poensis to the brilliantly banded S. boehmi show how little these dorsal bands can be trusted for the division of the Squirrels into groups, or even for the discrimination of the species. N o appreciable seasonal change is visible between the different specimens of the series. The Squirrel from " Tamaja " referred to and figured by Leche x as S. lemniscatus, Le Conte, appears also to belong to this species, which, while having the same number of stripes as S. lemniscatus, 1 T. c. p. 117, pi. iii. |