TERRESTRIAL AND FLUVHTILE MOLLUSC A. 1S5 



and is found only sparingly in very restricted localities in the highlands 

 west and south-west of the Dead Sea. 



53. Helix kdereri. Pfr. in Malak. Bl. lii., 1S56, p. 43. 

 In a few places on the coast, on sand-banks. 



54. Helix seetzcni. Koch. Zeitschr. fur Malak., 1847, p. 14, 



In immense numbers over the southern deserts, where it is the food of 

 Sea-Gulls. 



55. Helix arabiea. Terver. Cat., p. 14. 



Very scarce, and only south of the Dead Sea, taking the place of the 

 preceding species. 



56. Helix candidissiina. Drap. Tabl. Moll., p. 75. 



Very common. 



Var. hierochunlina, Boiss., granulated at the apex. 

 Var. /3, extremely glossy, and less than one-third the size of African 

 specimens. 



57. Helix desertorum. Forsk. Ehr. Symb. Phys. 

 Southern desert. 



58. Helix fimbriata. Bourg. Test. Noviss. Or., p. 11. 



Found in a few restricted localities north and west of the Dead Sea. 



59. Helix prophetarum. Bourg. Test. Noviss. Or., p. 12. 

 Scattered in several localities west and south of the Dead Sea, near 



Sebbeh and Jebel Usdum. 



60. Helix boissieri. Charp. Zeitschr. fur Malak., 1847, p. 133. 

 This fine example of a desert species, with its thick cretaceous 



shell, its solid contracted mouth and black interior, is widely dispersed 



in different localities over the Judsean desert, but not so generally 



as H. seetzeni. 



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