160 VOLUTIN.E. 



the largest ; outer lip thickened, with the margin more or 

 less crenate. 



Ex. F. fulgura, Martini, pi. 18, fig 6. 



Most of the genera of Volutes have smooth shells ; in 

 Fulguraria, however, an example occurs where the whorls 

 are transversely striated throughout; the outer lip is 

 somewhat effuse, with the fore part slightly toothed or 

 crenate. 



Species of Fulguraria. 

 concinna, Brod. fulgura, Mart. 



Sub-gen. aurinia, H. and A. Adams. 



Shell ovately fusiform ; spire with the apex mamillated, whorls 

 transversely finely striated, lougitudiually subplicate ; columella 

 with the folds obsolete; outer lip thin, simple. 



dubia, Brod. 



Genus LYRIA, Gray. 



Shell ovately fusiform, solid; spire acuminate, whorls 

 longitudinally ribbed; aperture ovate; columella with 

 numerous transverse plaits ; outer lip simple, acute. 



Ex. L. nucleus, Lamarck, pi. 18, fig. 7. 



This genus is composed of elegant mitriform shells, 

 with the whorls longitudinally ribbed, and with numerous 

 small plaits on the columella. Some of the species are 

 from Australia, while others are from the West Indies, 



