618 APPENDIX. 



Genus FULGORARIA, Schumacher. 

 rupestris, Gmel. (fulgora, Mart.). 



Genus LYRIA, Gray. 



festiva, Lam. mitriformis, Lam. 



]yra3formis, Brod. nucleus, Lam. 



Sub-gen. haepella, Gray. 



Aperture ovate ; outer lip moderate, without any internal rib ; 

 inner lip with numerous small grooves. 



costata, Swains, (lyrata, Humph ). Delessertiana, Petit. 



Sub-gen. en^eta, H. and A. Adams. 



Aperture narrow ; outer lip thickened externally, with a convex 

 varix and a strong internal central rib ; inner lip smooth. 



Cumingii, Brod. Guildingii, Sow. 



cylleniformis, Sow. harpa, Barnes. 



Genus VOLUTIL1THES, Swainson. 

 abyssicola, Adams and Eeeve. 



Genus CALLIPARA, Gray, 

 bullata, Swains. 



Genus ZIDONA, H. and A. Adams (Volutella, D'Orb., 



not 8 warns.). 



angulata, Swains. 



Sub-gen. ausoba, H. and A. Adams (Nobilia, Gray). 



Mantle-lobes moderately expanded, covering the lower side of 

 the spire, and leaving a callous band on the suture of the upper 

 side ; spire often crowned. 



cymbiola, Chem. Sophia, Gray. 



imperialis, Soland. volvacea, Gmel. 



scapha, Gmel. 



