120 CONCHOLOGY. 



Tornatella fasciata. Tornatella nitidula. 



T. solid ula. T. pedipes. 



T. auricula. T. flammea. 



2. Genus Pyramidella. PI. XI. 

 Animal. As preceding genus. 



Shell. Smooth and turreted, without epidermis ; elongated, 

 conical, or subturriculated ; aperture entire, demioval ; the outer 

 lip sharp and dentated within, columella produced, subperforate 

 at the base, furnished with transverse plaits. Inhabits the Ame- 

 rican and W. Indian seas. Six species. 



Pyramidella terrebellum. 



Pyramidella maculosa.* Pyramidella plicata.* 



P. dolabrata.* P. ventricosa.* 



P. corrugata.* 



FAMILY XV. 



ScALARiNA. Three genera. 



1. Genus Scalaria, PI. XI. 



Animal. Spiral ; foot short, oval, and inserted beneath the 

 neck ; two tentacula terminated by a filament, and having the 

 eyes at the extremity of the dilated portion ; a proboscis. 



Shell. Marine, aperture circular, spire more or less pressed 

 and furnished with longitudinal ribs, formed by the preservation 

 of the reflected margin of the aperture ; edges united, thickened, 

 and outwardly reflected ; operculum horny and thin. Inhabits 

 the American and Indian seas. Fourteen living species, and 

 three fossil. 



Scalaria coronata. Scalaria varicosa. 



S. communis. S. raricosta. j 



S. Australis. S. lamellosa. 



S. tenebralis. S. pretiosa. 



S. Martinii.* S. Novangli a.* 



