820 



anfractibus sex, planiusculis, transversim sulcatis, interstitiis (sub 

 lente) crenulatis ; apertura oblongCi ; columella uniplicata, subin- 

 crassata, plica obliqua, subobsoleta ; labro margine crenulato, in- 

 tus lirato. 



Ovate, turreted, grey ; spire produced, rather obtuse ; whorls 

 six, rather flattened, transversely grooved, interstices (under the 

 lens) crenulated ; aperture oblong ; columella with a single, some- 

 what obsolete, oblique plait ; outer lip internally lirate. 



Moreton Bay. (Mus. Cuming.) 



12. MoNOPTYGMA PURA (pi. clxxii. f. 33), A. Adams. 



M. testa ovato-turrita, solidiuscula, alba; anfractibus convexi- 

 uscuhs, transversim sulcatis, liris intermediis Irevibus, interstitiis 

 longitudinaliter concinne striatis; apertura oblongu; columella 

 plica subobliqua, medio instructa. 



Ovate-turreted, rather solid, white; whorls somewhat convex, 

 transversely grooved, the intermediate lirse smooth, the grooves 

 longitudinally striated ; aperture oblong ; columella with a single 

 median, oblique plait. 



New Zealand. (Mus. Cuming.) 



LIST OF FIGURES IN PLATES CLXIX. TO CLXXII. 



{Tke Fiffure after each Name refers io the number of the Species.) 



E. pyramidalis, A. Ad. 11. 



— nitida, Lam. 28. 



— nitidula, A. Ad. 12. 



— iota, a B. Ad. 22. 



— nitida. Lam. 28. 



— pusilla, Sowb. 7. 



— ■ flexuosa, A. Ad. 13. 



— teinostoma, A. Ad. 14. 



— grandis, A. Ad. 19. 



— porcellana, A. Ad. 18. 



— Ciuniiigii, A. Ad. 21. 



— modiccUa, A. Ad. 20. 



— acuta, A. Ad. 11. 



