whorl inversely conical; apertnre narrowly elongate, base emar- 

 ginate ; lip sinuate at the suture ; columella plicated, anterior 

 plicge strongest. Cretaceous ; Europe and India. 



Stoliczka refers this group to Conidfe, as he does also doubt- 

 fully Imbricaria and Cylindra, which he considers closely 

 related. The two latter are known to be in no way closely 

 related to Conus, and Gosavia possesses every characteristic of 

 a Volute ; indeed I cannot separate it readily from such forms 

 as V. musica. V. Indica, Stol. (liv, 35). India. 



Lyria, Grray. 



Distr. — 16 sp. W. Indies, B. Africa, Indian Ocean, Japan, 

 Australia, W. Coast of Central America. L. Delessertiana, 

 Petit (liii, 22). 



Shell ovately fusiform, solid ; spire acuminate ; whorls longi- 

 tudinally ribbed ; aperture ovate, rather narrow; columella with 

 numerous transverse plaits, two lower ones much the largest ; 

 outer lip externally ribbed. Operculate. 



The species are smaller than in Voluta, and Mitri3eform, con- 

 necting with the genus Mitra. 



EN^TA, H. and A. Adams. Outer lip thickened, inflected and 

 bearing an obtuse tooth upon its middle inner margin. L. harpa^ 

 Barnes (liii, 23). 



MiCROVOLUTA, Angas. 



Distr. — M. Australis, Angas > liii, 24, 2.5). 



Shell small, ovately fusiform, solid, smooth, shining ; spire as 

 long as the aperture, apex papillary ; whorls simple ; aperture 

 narrowly ovate ; columella with four strong transverse plaits, 

 the anterior one the smallest ; outer lip thin, simple, slightl}^ 

 contracted at the base ; base rounded, spout-shaped, with a 

 flexuous bend upwards towards the columella, which is a little 

 thickened and reflected below the plaits. The deep siphonal 

 notch and the toothed projection of the base of the pillar, so 

 characteristic of Voluta, are here wanting. 



The above description is drawn up from the only known 

 species, and probably many of its characters are of slight 

 importance. The animal is unfortunately unknown. 



Family MITRID^. 



The animal has a small, narrow head ; tentacles close together 

 at the base ; eyes near the base or towards the outer middle of 

 the tentacles ; proboscis cylindrical, flexible, very extensible, 

 mantle enclosed ; siphon simple at the base ; foot small, trian- 

 gular, usually truncate in front. 



The dentition of the Mitridse (x, 9) presents several distinct 

 types ; so that Troschel and Gill have divided the family upon 



