506 R. Sullen Neivton — Shells from Raised Beaches, Red Sea. 



Madagascar, East Indies, Polynesia (Tryon) ; Aden, Eed Sea, 

 Indian Ocean, and parts of the Pacific (E. A. Smith). Coll. Geol. 

 Surv. Egypt : Jebel Zeit (Barron) ; raised beach 20 feet above sea 

 at Gharib lighthouse (Nos. 2,058-2,098, Box No. 18/) ; recent 

 beach south of Gharib lighthouse (Nos. 2,198-2,216, Box No. 53/) ; 

 50 foot beach at Gemsah (Nos. 2,031-2,057, Box No. 58/). 



Family CEKITHIID^. 

 CeritMum cseruleum, G. B. Sowerby. 



Cerithwm aeruleum, G. B. Sowerby : Thesaurus Conchyliorura, vol. ii (1855), 

 p. 866, pi. clxxix, figs. 61, 62. 

 Distribution. — Eed Sea (Issel) ; Eed Sea and Indian Ocean 

 (Tryon) ; Aden, Eed Sea, Indian Ocean, China, Tonga Islands 

 (E. A. Smith). Coll. Geol. Surv. Egypt : Jebel Zeit (Barron) ; 

 recent beach south of Gharib lighthouse (Nos. 2,198-2,216, Box 

 No. 53y) ; raised beach, Camp 6, Wadi Gueh (Nos. 1,559 and 1,561, 

 Box No. 60A; ; Nos. 1,574, etc.. Box No. 62/<;). 



CeritMum columna, G. B. Sowerby. 



CeritMum columna, G. B. Sowerby: Genera of Shells, 1834, No. 42, fig. 7. 

 Distribution. — Mauritius, Philippines to Central Polynesia 

 (Tryon) ; Aden, Eed Sea, Indian Ocean, Philippines, etc. (E. A. 

 Smith). Coll, Geol. Surv. Egypt: Eas Gharib (Barron). 

 CeritMum erythrseonense, Lamarck. 



CeritMum eryth-monense, Lamarck : Hist. Nat. Anim. sans Vert., vol. vii (182'2), 

 p. 70 { = tuherosum, Reeve, and omissum, Bayle). 

 Distribution. — Desert of Attaka, Suez, Gulf of Akaba, Eed Sea, 

 Madagascar (Issel); Eed Sea (Tryon). Coll. Geol. Surv. Egypt: 

 Eas Gharib (Barron) ; beach east of Gharib (Nos. 2,227-2,254, 

 Box No. 17/) ; raised beach 20 feet above sea at Gharib lighthouse 

 (Nos. 2,090-2,105, Box No. 20y) ; recent beach south of Gharib 

 lighthouse (No. 2,204, Box No. 24/) ; raised beach, Camp 6, Wadi 

 Gueh (Nos. 1,559 and 1,561, Box No. mi). 



CeritMum Ruppelli, Philippi. 



CentMum Ruppelli, Philippi : Zeitsch. Malakozoologie, 1848, p. 22. 

 Distribution.— Gulf of Suez (Issel) ; Eed Sea (Tryon) ; Eed Sea, 

 Aden, Seychelles (E. A. Smith). Coll. Geol. Surv. Egypt: Eecent 

 beach between Jebel Mellaha and Jebel Zeit (Nos. 2,162-2,167, 

 Box No. 2iy) ; 50 foot beach at Gemsah (Nos. 2,031-2,057, Box 

 No. 58y) ; beach against old island west of Camp 51, south of 

 Gharib lighthouse (Nos. 2,021-2,030, Box No. 57/). 

 Vertagus asperum, Linnaeus (var.). 

 Murex asper, Linnajus : Systema Naturso, 10th ed. (1758), p. 756. 

 Distribution.— L of France (B.M.) ; beach deposits of the Eed 

 Sea (Issel). Coll. Geol. Surv. Egypt : raised beach, Camp 6, Wadi 

 Gueh (Nos. 1,574, etc.. Box No. 62fc). 



Vertagus fasciatus, Bruguiere. 



CeritMum fasciatum, Bruguiere : Encyclop. Methodique, 1792, vol. i (vers.), p. 474. 



Distribution.— Eed Sea, Gulf of Akaba, Indian Ocean, Philippines 



(Issel, Tryon). Coll. Geol. Surv. Egypt : Jebel Zeit (Barron) ; 



