82 



POPULAR CONCHOLOGY. 



horny 



Eburna 

 spirata. 



right thin ; umbilicus large ; an epidermis and 

 operculum. Animal, head large, furnished with 

 a thick, cylindrical proboscis ; two distant ten- 

 tacula having eyes at the base ; foot short, stout, 

 and thick. — 9 species * ; also fossil. 



The shells of this genus are found in the 

 Indian and Chinese seas. They are all easily 

 distinguished by the orange-brown spots on a 

 whitish ground with which they are marked : 

 and the animal is said to be spotted in the same 

 way. 



Family 7.— VOLUTACEA. 



These animals have a large foot, generally a flat broad 

 head, feelers wide apart ; the proboscis retractile ; the 

 tongue linear, toothed in the middle, naked at the sides ; 

 the breathing tube has an appendage at the base. The 

 shell is either of a globular form, or a narrow spindle 

 shape ; the aperture is variously formed, but the inner 

 lip has always plaits. — Marine. 



Voluta. Lin. — Shell having a great variety of forms ; 

 sometimes bladder-like, or globular, with a 

 short spire and an enormously wide mouth, 

 at others small, spindle-shaped, with a tolerably 

 long spire and a narrow mouth, in the last ease 

 always thickened ; no canal ; the columella 

 always marked with plaits, of which the lower 

 are the largest ; the outer lip always simple ; the 

 apex sometimes pointed, sometimes mammillated : 

 no operculum. f Animal having the foot some- 

 times twice as long and broad as the shell, at others 



* Reeve's Ieonica. 



| Except V. musica, from which Mr. Cuming has taken one from 

 the living animal. — Jiecve. 



