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Show 218 MR. R. KIRKPATRICK ON THE PORIFERA [Mar. 6, Oviducal pores on xiii./xiv. Sperm-ducts connected with long coiled atria. (1) ALLUROIDES PORDAGEI Beddard, loc. cit. About 25 mm. in length. Spermathecal pores double, opening near dorsal median line. Male pores opening on level with lateral setce. A penial process present on each side near to pores. Hab. Swamp on mainland opposite Mombasa, E. Africa. (2) ALLUROIDES TANGANYIKA, sp. n. About 25 mm. in length. Spermathecal pore (and spermatheca) single, opening in middle dorsal line. Mcde po?*es opening on level with ventral pair of setce, which are absent on this segment. No penial process (?). Hab. Lake Tanganyika in 10 fathoms. 4. Zoological Results of the Third Tanganyika Expedition, conducted by Dr. W . A. Cunnington, 1904-1905.- Report on the Porifera, with Notes on Species from the Nile and Zambesi. By R. KIRKPATRICK, F.Z.S. [Received February 6, 1906.] (Plates XV. -XVII.*) Dr. W. A. Cunnington's collection of Freshwater Sponges includes eleven specimens, nine from Lake Tanganyika, one from the Victoria Nyanza, and one from Lake Nyasa. The Tanganyika specimens, which are all in the form of thin incrustations on stones and shells, represent three species, viz. Spongilla moorei Evans, Spongilla tanganyikce Evans, and a new species, which I have placed under Spongilla, and have named after Dr. Cunnington-Spongilla cunningtoni, sp. n. The specimen from Victoria Nyanza belongs to Spongilla carteri Bowerbank, and that from Nyasa to Spongilla biseriata Weltner. Most of the specimens were obtained from quite shallow water, but some were dredged from 10 and 20 fathoms. I would here take the opportunity of describing three other Freshwater Sponges from Africa, viz. a specimen from above the Victoria Falls, Zambesi, collected and presented to the British Museum by Mr. C. F. Rousselet, and belonging to a new species of Spongilla ; SL second one from the same locality, representing a new species provisionally placed under Spongilla, presented by Prof. A. Dendy; and, lastly, a new variety of Ephydatia plumosa Carter from the White Nile, presented by Mrs. H. Broun. Six species are now known from the Tanganyika area, four from the lake itself, viz. Spongilla moorei Evans, S. tanganyikce Evans, S. cunningtoni, sp. n., and Potamolepis weltneri Moore; and two For explanation of the Plates, see p. 227. |