NAVIC ELLA.— Plate L 



4. (Fig. a, h, Mus. Cuming.) 

 N.wiCELLA Preycineti. Nav. testa ovatd, ijibhom, api- 

 cem versus subrostrata, co?tcen,trice nitide striata, sor- 

 dide olivacen, lineis fiiscis concentrice dense undulatd ; 

 intus cceridescente, area columellari latiusculd, medio 

 peculiariter liiujidata, versus immjinem aurantio-rufo 

 tinctd. 

 Frkvcinet's Navicella. Shell ovate, gibbous, some- 

 u'liat beaked towai-fls the apex, concentrically neatly 



striated, dull olive, densely concentrically waved with 

 browu lines ; interior bluish, columellar area rather 

 broad, peculiarly tongued in the midde, tinged to- 

 wards the margin with orange-red. 



Eecluz, Kevue Zool. Soc. Cuvierienne, 1841, p. 37-5. 



Hab. New Hebrides. 



Well distinguished by its gibbous slightly beakeil form, 



and peculiar tongue-like process of the columellar area. 



