certainty that the operculum exists in the present genus. — 

 When recent the surface of the shell is covered with a thin 

 epidermis. It is always destitute of varices and of umbili- 

 cus, and bears the same relation to Pyrula that Fasciolaria 

 does to Fusus. Indeed we would have more readily ac- 

 quiesced in referring them to Fasciolaria than to Pyrula, 

 although there exists but one fold on the columella, in place 

 of two or three. 



The excluded ovaries consist of a long series of oval, 

 parallel follicles or disks of little thickness, attached by 

 one side to a connecting string ; each of these disks con- 

 tains numerous young ones, of w^hich the shell is very ob- 

 vious and even tolerably firm in its consistance. Such ova- 

 ries are very abundant on our coast. They exhibit at 

 length, a rounded perforation in the edge of the follicle, op- 

 posite to the string, whence the young shells escape. All 

 this is very well represented by Lister in his Conchology, 

 plates 879 and 881. 



FULGUR PYRULOIDES. 



SPECIFIC CHARACTER. 



Pale yellowish or white, with rufous, dilated lines, inter- 

 rupted in the middle ; suture canaliculated. 



SYNONYMS. 



Seba. Mm, vol. iii. pi. 68, fig. 19, 20 ? 

 LAst. Conch, pi. 877. 



FLATB XIX. 



