NATICAD.E. 125 



Eulimella (Forbes). As Chemnitzia, but the 

 shell smooth and polished ; pillar simple. 



E. acicula. Fig. 193 ; -f. 

 affinis. 

 clavula. 

 Still. 



Odostomia (Flem.). Shell minute, ovate, or 

 tapering, smooth ; aperture ovate ; pillar with a 

 single fold ; lip thin; opereulum indented. Animal 

 like Chemnitzia. 



0. acuta. 0. insculpta. 



alba. interstincta. 

 conoidea. Fig. 194 ; . nitida. 



conspicua. obliqua. 



cylindrica. pallida. 



decussata. plicata. 



dolioformis. rissoides. 



dubia. spiralis. 



eulimoides. striolata. 



excavata. truncatula. 



glabrata. unidentata. 



GulsoneG. Warrenii. 



FAMILY XII. NATICAD.E. 



Shell globose, few-whorled ; spire small, obtuse ; 

 aperture very large, semicircular; lip sharp. 

 Animal with a long retractile proboscis ; foot very 

 large ; mantle with large side-lobes, turned up so 

 as to conceal, more or less perfectly, the shell. 



Velutina (Flem.). Shell thin, with a velvety 

 epidermis ; no opereulum. Animal with a broad 

 head ; tentacles blunt, far apart ; gills two. 



V. flexilis. 



Isevigata. Fig. 195 ; n. s. 



