NASSA.— Plate XVI. 



atd, superiie callosUate parvd instructd, fauce liratd, 



labro subexpanso, crasse varicoso. 

 The pale Nassa. Shell ovate, ventricose, pale, obscurely 



tinged with two bands of light brown spots ; spire 



rather acuminated ; sutures narrowly channelled ; 



whorls flatly convex, smooth, grooved at the base ; 



columella arched, furnished at the upper part with a 



smaD callosity, interior ridged, lip rather expanded, 



thickly varicose. 

 A. Adams, Pro. Zool. Soc. March 1851. 

 Hall. Malacca (in coarse sand at ten fathoms) ; Cuming. 



A smooth, pale, subventricose species, with the spire 

 delicately channelled. 



Species 109. (Mus. Cuming.) 

 Nassa luctiiosa. Ntiss. testa acuminato-ui-atd, pnrpureo- 



tiigrd, iratisversim tenuisuleatd, prope apicem longitii- 

 dinaliter plicald ; anfractibus planulatis, ad suturas 

 irregulariter noduloso - marglnatis ; aperturd pand, 

 fauce liratd, columella labroque crasse callosis. 



The mourning Nassa. Shell acumiuately ovate, pur- 

 ple-black, transversely finely ridged, longitudinally 

 plaited near the apex; whorls flattened, irregularly 

 nodulously margined at the sutures ; aperture small, 

 interior ridged, lip and columella thickly callous. 



A. Adams, Pro. Zool. Soc. March 1851. 



Hab. Cagayan, Isle of Mindanao, Philippines (under stones 

 on the reefs) ; Cuming. 



A very dark purple-black solid species, finely trans- 

 versely grooved throughout, and irregularly nodulously 

 margined at the sutures. 



