CLASSIFICATION OF OLEACINID^E. XV 



c 1 . Penis without appendix ; labial processes short. 



Poiretia. 

 6 1 . Penis with no terminal blind sack. 



c. Shell with Achatinoid columella and well de- 

 veloped spire. 



d. An appendix on penis; penis retractor 

 inserted on the epiphallus ; shell glossy, 

 minute. Salasiella. 



d 1 . No appendix; shell larger. 



Euglandina. 



c 1 . Shell well developed, capable of containing 

 the soft parts, the columella spirally curved-, 

 appendix present or wanting ; penis retractor 

 inserted on the epiphallus. Streptostyla. 



c 2 . Shell far too small to contain the soft parts, 

 posterior in position; aperture about as long 

 as the shell, the columella concave; spire 

 minute ; no appendix on the penis. 



Strebelia. 



Artificial Key to genera of Oleacinida. 



a. Shell slender, turrite, small, Subulina-like ; columella con- 

 tinuous or truncate at base. Pseudosubulina, p. 1. 

 a 1 . Shell ovate or oblong; or if small, slender and turrite the 

 columella is spiral. 



~b. Columella truncate at base, Achatinoid. 



c. Shell small or minute (length 12 mm. or less 



in known species), oblong or cylindric, with 



short spire, glossy and smooth, nnicolored. 



Mexican. Salasiella, p. 170. 



c 1 . Shell glossy or weakly striate, with short spire 



and very long narrow aperture. Cuba, 



Haiti. Oleacina, p. 127. 



c 2 . Shell striate, or glossy and smooth, spire 



shorter than aperture. American mainland. 



Euglandina, p. 175. 



c 3 . Shell striate with rather long spire. Eur- 

 African. Poiretia, p. 164 



