CONCHOLOGY. 



PLATE LXVII. 



VOLUTA FERUSSACII 

 FERUSSAC'S VOLUTE 



Univalve. 



generic character. 



Shell unilocular and spiral ; aperture without a beak and some- 

 what efiuse; pillar twisted or plaited; generally without lips or 

 perforation. 



m Ventricose, spire short. 



SPECIFIC CHARACTER. 



Shell ovate thick whitish glabrous, marked longitudinally with 

 flexuous testaceous streaks, spire short and conic : aperture orange, 

 pillar lip with two plaits. 



VoLUTA Ferrusacii : tcsta ovato crassa albida glabra, strigis 

 testaceis longitudinalibus flexuosis : spira brevi, 

 conica : apertura aurantia : columella bidentata. 



