FASCIOLARIA. 



TESTA elongata, fusiformis, spira longitudinem 

 canalis aequante; canali elongate, recto; basi 

 coliunellae plicifera, piicis tribus vel quatuor, 

 obliquis, inferioribus majoribus; operculum 

 corneum, ovale, inferne acuto. 



One of the genera which was formerly united with Murex, 

 but apparently separated from it with propriety: and 

 easily distinguished by its spire and canal being nearly of 

 equal length and by its being destitute of varices. From 

 Fusus, however, it is not so easily distinguished, being of 

 the same general form and having nearly the same ex- 

 ternal appearance ; the want of oblique folds at the base of 

 the columella in Fusus is the only character in which they 

 differ: in Fasciolaria, these folds are very oblique, three 

 or four in number, and the lower are the larger; we 

 must not, however, omit to mention some shells which 

 may be confounded with Fasciolaria, and which, on 

 account of their having some small folds near the base of 

 the columella, have apparently caused much difficulty, 

 some of them having been placed in Turbinelius, others 

 in Fasciolaria, and others in Fusus; and having also 

 been occasionally transferred from one to another: the 

 folds in these are very small, and tlicy are moreover 

 horizontal; we would suggest the propriety of uniting 

 the shells possessing these characters, should they be 

 found to agree in other particulars, under a ugw generic 

 appellation. The genuine Fasciolarise maybe distinguished 

 from the Turbineiii also, by the obliquity of the folds and 

 by the circumstance of the lower being the larger. 



Shell elongated, fusiform, with its spire generally 

 equalin length to the canal which is produced and nearly 

 Straight^ with three or four oblique folds at the base of 



