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Show 416 MR. E. A. SMITH ON SHELLS FROM ADEN. [June 16, 135. CYPR^EA ERYTHRJEENSIS, Beck. 136. CYPR^EA ANNULUS, Linn. These are all well-known species, of which the distribution has been given in various monographs. More thau half of them have been recorded from the Red Sea, and all are known inhabitants of the Indian Ocean. C. cruenta and C. undata are quoted from Aden by Caramagna. 137. LlTTORINA GLABRATA, Philippi. Hab. Natal and Amirantes Islands (Brit. Mus.). "Payta, Peru," one of the original habitats quoted for this species, is probably one of the numerous errors of locality which occur in Cuming's collection. So far as I am aware it has never been confirmed. 138. LlTTORINA NATALENSIS, KraUSS. Hab. Natal and Algoa Bay (Krauss). Ceylon (Brit. Mus.). Some specimens from Mergui received from Dr. Anderson and determined by Martens as L. pgramidalis, Qnoy & Gaim., also belong to this species. 139. LITTORINA GRANO-COSTATA, Reeve. Hab. Brisbane, Queensland. The shells described from Christmas Island under the name of L.granicostata, which I subsequently changed to L. insularis, should, I now believe, be associated with this species. The examples from Aden are more finely granose than the typical form. 140. PLANAXIS BREVICULUS, Deshayes. Hab. Gulf of Akaba and Persian Gulf (Brit. Mus.). Gulf of Suez. 141. CERITHIUM (VERTAGUS) OBELISCUS, Bruguiere. Hab. Red Sea, Indian Ocean; China and Tonga Islands (Brit. Mus.). S. Africa and many parts of Indian and Pacific Oceans. 142. CERITHIUM (VERTAGUS) KOCHI, Philippi. Hab. Red Sea, Indian Ocean, Japan. Is this the C. subulatum of Lamarck ? 143. CERITHIUM RUPPELLI, Philippi. Hab. Red Sea. Seychelles (Brit. Mus.). 144. CERITHIUM CERULEUM, Sowerby. Hab. Red Sea, Indian Ocean ; China and Tonga Islands; Aden ( Cooke). |