TERRESTRIAL AXD FLUVIATILE MOLLUSC A. 187 



regular striation of this shell distinguishes it at once from H. spiriplana, 

 for a small variety of which (such as that which Conrad has described 

 under the name H. lithophaga) it might otherwise be mistaken. 



68. Helix aspcrsa. Mlill. Verm. Terr, et Fluv. Hist, ii., p. 59. 



Very common in the gardens of Tyre, Sidon, Beyrout, Jaffa, and all 

 places on the coast. We did not meet with it inland. It reaches a very 

 large size — quite equal to the specimens from Algeria, and far surpassing 

 those of the Greek islands. This as well as all the following species and 

 H. casarcana are collected and sold in the markets for food. 



69. Helix cavata. Mouss. Coq. Bell. Or., p. 21. 

 Common in the interior ; not plentiful near the coast. 



70. Helix prasinata. Roth in INIalak. BL, 1S55, p. 31. 



We did not find this species ourselves ; but I possess three specimens 

 given me at Jerusalem by my lamented friend, its discoverer, Dr. Roth. 



71. Helix litconun. Linn. Syst. Nat., p. 1247. 

 Lebanon. 



72. Helix Jigulina. Parr, in Rossm. Icon, i.x., p. 9. 

 Dry Plains. 



']l. Helix ligata. Miill. Verm. Terr, et Fluv. Hist, ii., p. 58. 

 In the Lebanon. 



74. Helix grisca. Linn. Syst. Nat., p. 693. 

 Between Nablus and the Jordan. 



75. Helix paehya. Bourg. Rev. et Mag. Zool., i860, p. 162. 

 Near the Lake of Gennesaret, and north of Beyrout. 



76. Helix engaddensis. Bourg. Test. Noviss. Or., p. 11. 

 In the wilderness of Judaea. 



These eight species appear to me to be very closely allied, the most im- 

 portant differences being in the aperture, which is almost circular in H. 

 cavata (a species closely allied to H.Jigulind), and is oval and elongated in 



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