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Show 206 MR. F. E. BEDDARD ON THE OLIGOCH^TE [Mar. 6, PLATE XIII. Fig. 38. Limnocaridina spinipes (p. 197), female. Cephalothorax from the side. 39. „ „ female. Antennal scale. 40. „ „ „ Peraeopod of first pair. _ 1-1 , Peraeopod of second pair. 42. " „ Peraeopod of third pair. 42 a. Dactylus of same, further enlarged. 43 ?) n Permopod of fifth pair. 43 a. Dactylus of same, further enlarged. 44 „ Tail-fan. 45^ Caridella cunningtoni (p. 199), female. Cephalothorax from the side. 45 a. An egg, drawn to same scale. 4,6. „ female. Peduncle of antennule. 47# " „ Antennal scale. 4g'_ " j' „ Perreopod of first pair. 49' " „ Peraeopod of second pair. 50' „ Peraeopod of fourth pair, terminal part. 50 a. Dactylus, further enlarged. 51 }J „ Peraeopod of fifth pair, terminal part. 52# " „ jj Tail-fan. 53'. Caridella minuta (p. 200), female. Cephalothorax, from the side. 54. 9J „ female. Peraeopod of first pair. _ 55 „ Peraeopod of second pair. 56. " M „ Peraeopod of fifth pair. 56 a. Dactylus, further enlarged. PLATE XIV. Fig. 57. Atyella brevirostris (p. 201), female. Cephalothorax, from the side. 0 58. „ „ female. Peduncle of antennule. 59. ., „ ,5 Antennal scale. 60*. ,' „ ,, Peraeopod of first pair. (51* " „ Peraeopod of second pair. ao ;, Peraeopod of third pair. 62 a. Dactylus of same, further enlarged. 63# 5j 5j 53 Perasopod of fifth pair. 63 a. Dactylus of same, further enlarged. 64. „ „ ?> Tail-fan. 65] Atyella longirostris (p. 202), female. Cephalothorax from the side. G6. „ „ female. Peduncle of antennule. (37. 3j „ „ Antennal scale. 68. ,' „ „ Peraeopod of first pair. 69. „ „ Peraeopod of second pair. 70] „ M Peraeopod of third pair. 70 a. Dactylus of same, further enlarged. 71. n „ Peraiopod of fifth pair. 71 a. Dactylus of same, further enlarged. 72. „ „ „ Tail-fan. 3. Zoological Results of the Third Tanganyika Expedition, conducted by Dr. W. A. Cunnington, 1904-1905 - Report on the Oligochseta. By FRANK E. BEDDARD, F.R.S., Prosector to the Society. [Received February 12, 1906.] The Oligochpeta brought back by Dr. Cunnington from Lake Tanganyika, and which have been submitted to me for study, belong to four new species, which I name Ocnerodrilus (Ilyogenici) cunningtoni, Alluroides tanganyikce, Metschaina tanganyikce, Stuhlmannia inermis. Of these the first two are types which are |