OLEACINA. 35 



O. PSEUDOTURRIS, Strebel. PI. 8, fig. 7. 



Like 0. isabellina, but with closer, more distinct striae, not 

 tuberculate at the suture ; whorls 6^ ; columella strongly 

 twisted, not inflated above, but excavated. Length, 26 mill. 



Juquila, State of Oajaca, Mexico. 



Described from a single imperfect specimen. 



0. TORTILLANA, Pfeiffer. PI. 6, fig. 79. 



Moderately solid, with regular, close, longitudinal striae, 

 pellucid, shining, light corneous, with irregular, opaque, yel- 

 lowish brown strigations and maculations ; whorls 7-J, suture 

 submarginate. Length, 20 mill. 



Tortilla,, Central America. 



O. YUCATANENSIS, Pfeiffer. PI. 8, fig. 10. 



Hyaline fulvous ; closely longitudinally plicate-striate ; whorls 



6, suture margined, denticulated. Length, 23 mill. 



Yucatan. 



This is 0. Largillierti, var., of Crosse and Fischer. It may be 

 compared with 0. carnea, Pfeiffor. 



O. NANA, Shuttleworth. PI. 6, fig. 80. 



Rather thin, regularly closely sulcate-costulate, fuscous, light- 

 banded at the suture ; whorls 6. Length, 13 mill. 



Cordova, Mexico. 



O. SUBEMARGINATA, Desll. PI. G, fig. 77. 



Shell thin', hyaline, longitudinally, thinly, obsoletely striated ; 

 brownish red ; whorls 6^, the last obtuse at base, suture subcan- 



aliculate and thinly plicate. Length, 42 mill. 



Habitat unknown. 

 O. MITRIFORMIS, Angas. PI. 7, fig. 94. 



Moderately thin, shining, irregularly obsoletely striated, striae 

 finer and closer on the upper whorls ; olive-chestnut, with a 

 narrow yellow zone next the suture, aperture lilac ; whorls 5. 



Length, 28 mill. Costa Eica. 



Described from a single specimen collected by the late W. 

 M. Gabb. 



O. POLITA, Strebel. PL 8, fig. 14. 



Rather thin, translucent, very shining, brownish yellow, longi- 

 tudinally plicate. Length, 16 mill. Mexico. 



Described from a single specimen. 



