OB3EBVED AT MOGADOE. 



175 



Nassa incrassata {MiiU.). 



mutabilis (L.) 



80. Bucciuum vittatum (L.). 

 Cassis SaburoUj Lam. . . . 



Hab. 



bcm 



c? 



s 

 s 



25. CoNIDiE. 



Conus mediterraneus, Brug., /3 franciscanus. . . . 



26. VOLUTID^. 

 Cymbium rubiginosum (Swains.), a angulatum. 



mcurvum 



27. Cypb^ID^. 



Cypraea Pyrum, Gm 



S5. spurca, L 



lurida, L 



europaea, Mont 



Marginella glabella (L.) 



cm 



cms 



c s 



b 



c s 



28. TOBNATELLID^. 

 Tornatella fasciata. Lam b" 



29. AUEICULID^. 

 (Mostly Sea-shore or Salt-marsh Mollusks, but air-breathing and 

 allied to LimncEidce.) 

 90. Melampus eequalis, Lowe, var. a cm 



Tabular View of proportionate Distrihution of the precedinff Species 

 between Mogador and Britain (b), the Canaries (c), the 

 Madeiras (lu), Senegal (s), Sfc. 



These, with three Mediterranean species, one West Indian, two 



