268 HELICID^. 



as first described by him, being specifically identical with 

 it, and his name is conseqnently prior to all those which 

 I haA^e enumerated ; but the reduplication of the same 

 name, both in a specific and generic sense, would be 

 objectionable. V. pusilla, as well as the present species, 

 were confounded by Montagu in the subsequent part of 

 his description. I fear that this little episode will 

 interest none but bibliographical naturalists. 



C. Shell dextral, cylindrical : mouth seldom furnished with 



teeth. 



8. V. eden'tula*, Draparnaud. 



Piqrn fdentula, Drap. Hist. Moll. p. 52, pi. iii. f. 28, 29 ; F. & H. ir. p. 103, 

 pi. cxxx. f. 1. 



Body rather slender, ash-grej', of a darker hue above, and 

 much paler behind as well as on the sides and underneath ; 

 tubercles extremely small, reduced to blackish or greyish dots : 

 mantle veiy pale reddish-grey ; tentacles thick, nearly smooth, 

 blackish-grey ; bulbs forming about one-third of their length, 

 oval, and verj- blunt ; there is no sign of any lower tentacles 

 and not even a spot to indicate their place : foot oblong and 

 narrow, slightly pointed behind. 



Shell oblong, nearly cylindrical, thin, semitransparent and 

 glossy, light yellowish-brown or horacoloiu*, marked with slight, 

 but numerous, obhque and somewhat curved striae in the line of 

 gi^owth : periphery rounded, although having a slight tendency 

 to angularity : epidermis thin: whorls ^h-^^, moderately con- 

 vex, gradually increasing in size, the penultimate whorl rather 

 broader than the last, which occupies about two-fifths of the 

 shell : spire long, abrupt and blunt at the point : suture deep : 

 mouth forming an arch or segment of two-thirds of a circle, 

 dcvstitute of teeth : outer lip thin, very slightly reflected, except 

 towards the umbilicus, over which it folds on the side next to 

 the mouth : pillar lip nearly straight in adidt specimens ; 

 umbilinLs -narrow and contracted by the pillar, but rather deep. 

 L. 0-1. B. 0-05. 



* Toothless. 



