130 BRITISH MOLLUSKS. 



Jaminia denticulata and quinquedens, Browu (1845), Illus. Conch, p. 22. 



pi. Tiii. f. 6, 11. 

 Alexia denticulata, Gray (1847), Pro. Zool. Soc. p. 179. 

 Carychium (Ovatella) denticiilatum, Moquin-Tanclon (1855), Hist. Moll. 



vol. ii. p. 415. pi. xxix. f. 27 to 29. 

 Hah. Southern and Western Europe. South and south-west of England. 

 (About the mouths of rivers in the mud left bare by the tide, in har- 

 bours under stones above high-water mark, or among the roots of 

 water-plants, in brackish marshes.) 

 Conovidus denticulatus is distinguished by having the shell more 

 or less toothed on both sides of the aperture. In addition to two 

 very conspicuous winding plaits at the base of the columella, it 

 has two small teeth on a callosity at the upper part, and a row of 

 small teeth, sometimes however reduced to one only, on a callous 

 ridge within the opposite lip. In the interior of the shell the septa 

 of the whorls are generally absorbed. 



M. Bouchard-Chantereaux, who has well observed this species in 

 the Port of Wimereux, Department of Pas-de-Calais, mentions, in 

 speaking of it under Michaud's name of CarycMum personatum, 

 that the animal, which shows little fear when lifted by the shell, and 

 elongates itself and tries to find a place of attachment, lives under 

 stones in that locality, but only under those above high- water mark, 

 where it feeds on the detritus of marine plants and rotten wood. 

 He never found the Conovuli in localities washed by the tide. 

 They would live only a moderately long time on being immersed 

 in sea- water, but would exist longer than when immersed in fresh 

 water. 



2. Conovulus myosotis. Mouse-ear Conovidus. 



Shell ; fusiformly oblong, yellowish- white, covered with a fulvous 

 chestnut horny epidermis, spire mode- 

 rately produced; whorls six to seven, A 

 flatly convex, plicately striated next I ffo 

 the sutures, last whorl rather inflated ; 

 aperture somewhat squarely oblong, 

 rounded at the base, lip simple, rather 

 thickened within, columella callous, 

 strongly four-toothed. 



Auricula myosotis, Draparnaud (1801), Tail. 

 Molt. p. 53. 



