E. Biillen Netcton — Shells from Raised Beaches, Red Sea. 559 



:Siiiith, E. A. — " Shells from the raised Sea-bed at Moses' Wells" (" Ayun Musa," 



at the head of the Gulf of Suez) : in Hull's " Memoir on Arabia Petrsea, 



Palestine, etc.," 1886, p. 72. 

 " On a collection of Marine Shells from Aden, with some remarks upon the 



Relationship of the MoUuscan Fauna of the Red Sea and the Mediterranean " : 



Proc. Zool. Soc. London, 1891, pp. 390-436, pi. xxxiii. 

 Tristram, H. B. — " Report on the Terrestrial and Fluviatile Mollusca of Palestine " : 



Proc. Zool. Soc. London, 1865, pp. 530-545. 

 Tryon, E. W. — " Manual of Couchology," 1880-1891, vols, ii-xiii. 

 Vaillant, L. — " Recherches sur la Faune Malacologique de la Baie de Suez" : 



Journ. Conchyliologie, 1865, pp. 97-127, pi. vi {pars). 

 Woodward, S. P — " Geographical Distribution of the Mollusca," Indo-Pacific 



Province (Red Sea and Persian Gulf) : in " A Manual of the Mollusca," 1880, 



4th ed., pp. 71-74. 



EXPLANATION OF PLATE XX. 



.Fig. 1. — Turbo radiatxs, Gmelin. 20 feet above sea, Gharib lighthouse. Back 



view of medium-sized specimen. 

 Fig. 2. — Canariiim gibberulum, Linnaeus. Jebel Zeit. Back view of specimen 



with varicosed spire. 

 Fig. 3. — Sfyoinbiis fasciatus. Born. Between Jebel Mellaha and Jebel Zeit. 



Specimen showing colour -markings and characteristic tuberculations at 



the shoulder. 

 Fig. 4. — Clanculus Pharaonius, Linnaeus. 20 feet above sea, Gharib lighthouse. 



Specimen exhibiting the tj-pical granulate ornamentation. 

 Fig. 5. — Basal view of same, with umbilicus siurounded by radial plicfe. 

 Fig. 6. — Terebra duplicata, Linnaius. Jebel Zeit. Front view of shell, showing 



the smooth, depressed ribbing of this species. 

 Fig. 7. — Terebra maculata, Linna3us. North of Ras Moharaed or Ghazlandi Bay. 



Front aspect of specimen, with original colour-bands. 

 Fig. 8. — Conus nussatella, Linna3us. East of Gharib. Specimen showing the 



closely -set, granulated striations of this species. 

 Fig. 9. — Conns omaria, Hwass. Wadi Gueh, Camp 6. A well-marked specimen, 



bearing the triangular white spots peculiar to this shell. 

 Fig. 10. — Pleurot.oma Garnonsi, Reeve. 50 foot beach at Gemsah. Shell showing 



small brown spots on the raised spiral ribs. 

 J^iG. 11. — CMcoreus a>iffuliftrus, Ijamaick. South of Gharib lighthouse. Specimen 



exhibiting a prominent node between each of the varices. 

 Fig. 12. — Vasum corniyerKin, Lamarck. 80 feet above sea, Camp 6, north of 



Wadi Gueh. A medium-sized specimen, showing the typical sculpture of 



this species. 



EXPLANATION OF PLATE XXI. 



Fig. 1. — Arcopagia scobinata, Linufeus. Northern Wadi Gueh, Camp 6, 80 feet 



above sea. Exterior of right valve, showing the rasp-like character of 



the ornamentation. 

 Fig. 2. — Venus reticulata, Linnfeus. 80 feet above sea. Camp 6, north of Wadi 



Gueh. Exterior of a right valve. 

 Fig. 3. — Circe pectinata, Linna3us. South of Gharib lighthouse. Medium-sized 



example, showing characteristic sculpture. 

 Fig. 4. — Codakia e.vaspcrafa, Reeve. 80 feet above sea, Camp 6, north of Wadi 



Gueh. External view of a left valve. 

 Fig. 5.—Dositiia radiata. Reeve. South of Gharib lighthouse. External view of 



a left valve, showing strong concentric striations and the growth periods 



of the shell. 

 Fig. 6.—Anadara antiquata, Linnaeus. Camp 6, Wadi Gueh. External surface 



of left valve. 

 Fig. l.—Ghjcijmeris pectuncuUis, Linnreus. Big Bay, south of Sherm, Sinai. 



Exterior of valve, showing striped colouring. 

 Fig. 8. — Tridacna gifjas, Linna;us. Between Jebel Mellaha and Jebel Zeit. 



External view of a left valve belonging to a small example of this 



species. 



