72 AUllICUHDiE. 



Hah. The conovuU inhabit brackish water near the 

 sea, in crevices of rocks near high water mark. The 

 recorded localities are Devon and Cornwall, and other 

 places on the south-west coast. Isle of Man, near Mid- 

 dlesbro', &c. 



C. DENTicuLATUS. Moutagu. PL VII, fig. 42. 



Shell oblong, smooth, coloured, spire conical ; aperture pyriform, 

 protected by more than two teeth. 



Voluta denticnlata, Mont. 



The individuals included under this species vary 

 much in size, in colour, and in the length of the spire 

 and convexity of the whorls. The mouth contains 

 three or six teeth, which are sometimes distinct, at 

 others nearly obsolete, they are placed on both sides 

 the aperture. It differs from hidentatus in the colour 

 of the shell, (which is a purplish brown above a yel- 

 lowish horn coloured periostraca,) and in the position 

 of the teeth. Length about a third of an inch, breadth 

 two lines. The variety myosotis is similar except in 

 the aperture, but for the most part stronger and of a 

 deeper tint of colouring. Inner lip with only two or 

 three teeth, outer lip with one. Animal yellowish 

 or bluish white, tentacles filiform and compressed, with 

 eyes at their inner bases. 



Hah. Brackish water in the neighbourhood of the 

 sea. More common in the south than in the north of 

 England. We have however met with it at Middles- 

 bro'. The variety occurs in the Thames and Avon, 

 near Bristol, as well as other places. 



Carychium. Muller. 



Shell — Spiral, thin, cylindrical, aperture small, ohlong, 

 toothed ; peristome thickened; no operculum. 



Animal — With an elongated ringed muzzle, two cylindrical 

 ohtuse tentacles, ivith eyes at their inner bases. 



C. MINIMUM. Muller. PL VII, fig. 46. 



Turbo carychium^ Gruel. Auricula minima, Drap., 



8^0. 



