THE LAND AXD FRESHWATER MOLSUSCA OF DORSETSHIRE. 125 



FAMILY IV. CARYCHIID^. 



Shell spiral, oval-oblong ; spire moderately produced; mouth 

 somewhat ear-shaped, oblique, narrowed above, with columellar 

 folds and a tooth-like tubercle on the outer lip ; umbilicus narrow 

 and indistinct. 



Genus L CAKYCHIUM, Mutter. 



CARYCHIUM MINIMUM, Muller, pi. 10. 



TURBO CARYCHIUM, Pult. cat.. Rack, ed., p. 52, pi. 19, f. 13. 



Body white, with eyes at the base of the short blunt tentacles ; 

 bilobed in front and rounded behind. 



Shell subfusiform, glossy, shining, transparent, whitish, with 

 closely-set delicately fine longitudinal striae, which by their inter- 

 section with the transverse aitriae, resemble the shells of Limnaea, 

 giving it a reticulated, decussated appearance ; periphery rounded ; 

 whorls five-and-a-half, convex, the lasi occupying nearly one-half of 

 the shell; spire moderately pointed ; suture deep ; mouth obliquely 

 oval, contracted below, furnished with a spiral told in the middle of 

 the pillar, one on the pillar-lip and another reaching to the 

 edge of the outer lip, which is thick and reflected, uninterrupted ; 

 umbilicus consisting of an oblique olit. L.0.07. B.0.035. 



Hab. Under stones and logs of wood, at the roots of 

 grass, among moss and dead leaves, often overlooked, probably 

 on account of its minute size. Amongst moss, Bryanston ; 

 Houghton and Clenston woods, Whatcombe Park (J.C.M.P.). 



Genus ILMELAMPUS, De Mont fort. 



Shell oval conoidal, solid ; spire short ; mouth elongated, narrow ; 

 inner lip with dentiform plications ; outer lip sharp, toothed or 

 fluted ; no umbilicus or operculum. 



MELAMPUS MYOSOTIS, Draparnaud, pi. 10. 



VOLUTA DENTICULATA, Pulf. cat.,R<ick- ed.,p. 44, pi. 18, f. l,Haton 



and Rack., Trans. Linn. Soc. vol. viii., p. 130, 



UONOVULUS DENTICULATUS, F. and H., vol. iv., p. 194, pi. cxxv., 



f. 3. 



Body yellowish or bluish-white- 



Shell spindle-shaped, rather thin, serai-transparent, chocolate or 

 yellowish-brown ; faintly marked and closely-set, delicate longitu- 

 dinal striae ; spire more produced in some specimens than in others ; 

 comparatively short, blunt, and unsym metrical; whorls seven 

 to eight, convex, tapering upwards, the last occupying about five- 



