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convexis, suturis profundiusculis, distiuctis, apertura 

 ovali, rotunda, labio sitnplici ; fasciaa stria?forrnes in 

 ultimo anfractu. 



Genus Truncatella, Risso. 

 T. truncatula, Drap. Common, with a ribbsd variety. 



Genus Eulirna, Risso. 



E. (Turbo) polita, L. ; syn. Rissoa boysii, Peyr. 



E. (Melania) nitida, Lamk. 



E. subulata, Donov.; syn. Melania cambessedesii, Peyr. 



E. distorta, Desh. 



E. acicula, Pkil. * 



Genus Chcmnitzia, D'Orbigny. 



C. elegantissima, Mont. ; syn. Melania campaneliae, Phil. 



C. rufa, Phil. 



C. humboldtii, Riss. 



XII. Familia NERLTACEA, Lamk. 



Genus Nerita, L. 

 N. viridis, L. Found on Caulerpa prolifera. 



Genus Natica, Brug. 



N. millepunctata, Lamk. Maltese name Acrux. 



N. maculata, Pesh. A variety of the preceding ? 



N. guillemini, Peyr. Rare. 



N. dilhvynii, Peyr. Not common. 



N. intricata, Donov. Very common. 



N. ? subcarinata, Walker. * 



