NASSA.— Plate XXVII. 



tenuisulcatd, longitudinaliter costatd, costis in anfractu 

 ultimo evanidis, Jlavescente, albo et ri/fo-/usco snhtl- 

 liter vittatd; columelld callosd, arcuatd ; apertiird 

 parvd, labro simplici, subvaricoso. 



The Madeira Nassa. Shell acuminated, transversely 

 finely gi-ooved, longitudinally ribbed, ribs obtuse, 

 fading on the last whorl, yeUowish, finely filleted 

 with white and red-brown ; columella callous, arched; 

 aperture small, lip simple and faintly varicose. 



Had. Madeira. 



An acuminated species, obtusely ribbed, the ribs fading 

 on the last whorl, of a pale yellowish colour, filleted trans- 

 versely with opake-white and red-brown. 



Species 183. (Mus. Cuming.) 



Nassa rosacea. Nass. testd acuminato-ovatd, tramver- 

 sim sulcatd, longitudimliter flexuom-costatd, intense 

 rosed, ad basin nigro-marginatd ; columelld callosd; 

 aperturd parvd, faiice sulcatd, labro varicoso, albo. 



The rosy Nassa. Shell acuminately ovate, transversely 

 grooved, longitudinaDy flexuosely ribbed, deep rose, 

 black-edged at the base ; columella callous ; aperture 

 small, grooved in the interior, lip varicose, white. 



Eab. ? 



A deep transparent rose shell, flexuously ribbed through- 

 out, tm-ned up with black at the edge of the basal canal. 



