NASSA.— Plate XV. 



Species 101. (Mus. Cuming.) 



Nassa exilis. Nass. testa cylindraceo-ovatd, oUvaced 

 vel purpureo-nii/ricante obscure fasciata ; sjiird acumi- 

 nata; aufractibus longituditmliter plieato-costatis, cos- 

 tis Jlexuosis, ad suturas granulatis ; aperturd parvd, 

 parum callosd, lahro iucrassato. 



The slender Nassa. Shell cylindrically ovate, ob- 

 scurely banded with olive or purple-black ; spire 

 acuminated ; whorls longitudinally plicately ribbed, 

 ribs flexuous, granulated at the sutures ; aperture 

 small, but little callous, lip thickened. 



Powis, Pro. Zool. Soc. 1835, p. 95. 



Hab. Payta, Peru (under stones) ; Cuming. 



A livid dark species, of a cylindrically ovate form, deli- 

 cately flexuously ribbed. 



Fig. 103. (Mus. Cuming.) 



A characteristic variety of N. pauperuia represented at 

 Plate VI. Sp. 37. 



