SEMINELLA. 175 



evanescent towards the middle of the body-Avhorl ; with fine 

 revolving strige, most conspicuous towards the base ; lip thick- 

 ened and strongly toothed within ; j'^ellowish white. 



Length, 7 mill. 



Habitat unknown. 

 Possibly a fossil, or water-worn if recent. 



C. ORTiGiA, Duclos. PL 58, fig. 34. 



Differs but little from G. anaidea, Duclos ; the teeth within 

 the outer lip are finer and more numerous. Length, 6 mill. 



Habitat tmknown. 

 C. NEPTUNiA, Duclos. PI. 58, fig. 35. 



Shell clathrate by longitudinal and revolving riblets ; aperture 

 rather large, the outer lip toothed within ; chocolate-brown. 



Length, 5 mill. 



Habitat imknoicn. 

 C. ORTONiA, Duclos. PI. 58, fig. 36. 



Shell white, covered by nodules formed by the intersection of 

 close longitudinal and spiral sculpture ; aperture slightly toothed 

 within. Length, 9 mill. 



Habitat unknown. 



Much resembles C. prosymnia^ described above. 



C. SEGESTA, Duclos. PI. 58, fig. 37. 



Shell ovate-oblong with shouldered whorls, and distant, 

 rounded, longitudinal ribs and revolving striae in the interstices, 

 becoming continuous towards the base of the body-whorl where 

 the ribs are evanescent ; aperture contracted by a columellar 

 callus and the outer lip into a short oblique anterior canal; outer 

 lip with small teeth on the inner margin ; 3'ellowish with a 

 chestnut band covering the shoulder and a narrower, interrupted 

 one on the periphery of the last whorl. Length, 5 mill. 



Habitat unknown. 

 C. TESTiNA, Duclos. PL 58, fig. 38. 



Shell ovate, with conical spire, last whorl obtusely angulated 

 on the periphery, where the longitudinal ribs apparently become 

 subnodulous, those of the spire forming nodules above the 

 sutures ; grayish or yellowish white, the nodules chocolate or 

 blackish; outer lip widely sinuated behind, denticulated within. 



Length, 7 mill. 



Habitat unknoion. 



