NASSA.— Plate XIX. 



The variable Nassa. Shell acuminately ovate, yel- 

 lowish-white, shining, encircled with a reddish band, 

 longitudinally flexuously plaited, transversely im- 

 pressly striated ; columella callously laminated, rather 

 excavated, lip simple, interior ridged. 



Philippi, Mus. Cuming. 



HaJ). ? 



A pale solid species, flexuously plaited and encircled with 

 a characteristic red band. 



Species 130. (Mus. Cuming.) 

 Nassa dentifera. Nass. tesid ovatd, siibventricosd, o/i- 



vaceo-fuscd, zonula alia cingulatd, lo7t//Undi/ialiter vo- 

 doso-plicntd, ii/tersUtiis lavibus ; columella brevilami- 

 natd, lalro simplici, varicoso. 



The toothed Nassa. Shell ovate, subventricose, olive- 

 brown, encii'cled with a whitish zone, longitudinally 

 nodosely plaited, interstices smooth ; columella short- 

 laminated, lip simple, varicose. 



Powis, Pro. Zool. Soc. 183.5, p. 95. 



Hal). Bay of Arica, South America (in mud at ten 

 fathoms) ; Powis. 



The longitudinal plaits are very concentrically inclined 

 in this species, and are characteristically noduled through- 

 out. 



