XVI CLASSIFICATION OF OLEACINEXE. 



c 4 . Shell striate, ribbed or grooved, with rather 



long spire, and more or less distinct varices. 



Antilles. Varicella, p. 46 



6 1 . Columella spiral, straightened or concave, not 



abruptly truncate at base. 



c. Whorls 2; shell glossy, Bulla-like, with min- 

 ute spire and concave columella. 



Strebelia, Vol. I, p. 22. 

 c 1 . Whorls numerous. 



d. Umbilicus perforate. 



Oryzosoma, p. 163. 



d 1 . Imperforate; columella spiral or 

 straightened. 



e. Spire long; surface ribbed, stri- 

 ate or grooved. Spiraxis, p. 11. 

 e 1 . Spire rather short; surface 



smooth glossy. 

 Streptostyla, p. 144 ; Rectoleacina, p. 142. 



PSEUDCSUBULINA, SPIRAXIS. 



What little is known of the anatomy of these forms is 

 given in the text, pp. 1, 2, 11. 



VARICELLA. 



This genus is very distinct by the comparatively small 

 size of the buccal mass, radula and teeth, and the slight ob- 

 liquity of the transverse rows of teeth. In allied genera the 

 ibuccal mass and radula are relatively very large, and the rows 

 of teeth very oblique. The penis in Varicella has a rather 

 long flagellum, and the vagina is extremely short. 



The soft anatomy of V. leucozonias, the type species, is 

 unknown. Of the Jamaican V. nemorensis I have examined 

 a much hardened and contracted specimen. The back has the 

 usual pair of grooves, the integument being elsewhere coarsely 

 granulose. The foot is rather short. Whether labial pro- 

 cesses are present could not be determined. The kidney is 

 narrow, triangular, and about twice the length of the peri- 

 cardium. The penis is rather long and simple. Its very 



