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TROCHIN^., 



Gundlachi, Phil. 

 guttata, Koch. 

 helicoides, Phil. 

 instricta, Goidcl. 

 jucuiicla, Gould. 

 kalinota, A. Adams. 

 Kotschyi, Phil. 

 Lehmanni, Mke. 

 livido-maculata, C. B. Ad. 

 leucophaea, Phil. 

 leucosticta, A. Adams. 

 Magus, Linn. 

 Mindorensis, A. Adams. 

 multicolor, Krauss. 

 Nassaviensis, Chem. 

 nebulosa, Phil. 

 nivosa, A. Adams. 

 obtusa, Chem. 



ompbalium, Phil. 

 Pbilberti, Recluz. 

 pi sum, Phil. 

 Preissiana, Phil. 

 punctata, Anton. 

 quadrata, Gmel. 

 rosea, Gmel. 

 scabra, Linn. 

 sulcosa, A. Adams. 

 tessellata, A. Adams. 

 tumida, Mont. 

 varia, Linn. 

 variegata, Pusso. 

 venusta, A. Adams. 

 umbilicalis, Da Costa. 

 umbilicaris, Linn. 

 UBdosa, A. Adams. 

 usta, Phil. 



Sub-gen. fobskalia, H. and A. Adams. 



Shell turbinate ; spire elevated, whorls nodosely plicate at 

 the sutures, granulated, the last whorl with a conspicuous groove 

 at the periphery. 



declivis, Forsk. 

 familiaris, Petiv. 

 fanulum, Gmel. 



pulcherrima, A. Adams. 

 puncto-costata, A. Adams. 



Genus TROCHISCUS, Sowerby. 



Operculum with the edges of the whorls elevated and 

 scaly. 



Shell orbicular, sub-discoidal, covered with an epidermis, 

 solid, smooth, widely and deeply umbilicated ; aperture 

 nearly circular, peritreme not continuous ; inner lip flat- 

 tened and produced anteriorly; outer lip thin, acute. 



