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Show 1906.] CRUSTACEA OF THE THIRD TANGANYIKA EXPEDITION. 187 2. Zoological Results of the Third Tanganyika Expedition, conducted by Dr. W . A. Cunnington, 1904-1905. Report on the Macrurous Crustacea. By W . T. C A L M A N , D . S C , British Museum (Natural History). [Received February 5, 1906. | (Plates XI.-XIV.*) i. Introduction. The collection of Macrurous Crustacea obtained by Dr. Cunnington from the lakes of Central Africa comprises thirteen species, of which only three have been previously described. In Nyasa and Victoria Nyanza only a single species was found, a common and widely-distributed form, already recorded from the latter lake. In Tanganyika, in addition to the two species discovered by Mr. Moore, Dr. Cunnington has been fortunate enough to find no less than ten new species, and among them representatives of what I regard as two new genera. The following is a list of the species obtained :- NYASA. Caridina nilotica, var. gracilipes (de Man). TANGANYIKA. Palcemon moorei Caiman. Limnocaridina retiarius, n. sp. ,, parvula, n. sp. „ tanganyikce Caiman. ,, similis, n. sp. ,, latipes, n. sp. ,, socius, n. sp. ,, spinipes, n. sp. Caridella cunningtoni, n. g. et sp. ,, minuta, n. sp. Atyella brevirostris, n. g. et sp. ,, longirostris, n. sp. VICTORIA NYANZA. Caridina nilotica, var. graciliptes (de Man). I am obliged to Dr. Cunnington for giving me his notes on the occurrence and coloration of the various forms. These I have incorporated in their proper places. It is right that mention should be made of the excellent state of preservation of the specimens, and of the very careful and methodical manner in which the notes of localities and other particulars were kept. For explanation of the Plates, see p. 205. |