74 CYCLOSTOMID^E. 



Hal. Hedges, under stones, &c., in chalk and lime- 

 stone districts. It occurs at Hemsley, Thorpe, Hackfall 

 near Ripon, and other places in Yorkshire, near Ken- 

 dal, and most parts of the south of England. 



ACME. Hartman. 



Shell Cylindrical, spiral, turreted, obtuse at the apex ; ap- 

 erture ovate, entirely toothless ; operculum very thin and 

 corneous. 



Animal With two long and slender tentacles, with eyes 

 at their inner bases. 



A. LINEATA. Draparnaud. PL VII, fig. 47. 



This delicate little gem, which is by no means com- 

 mon, may be readily distinguished from C. minimum, 

 which it nearly resembles in size, by being more 

 cylindrical and having a blunter apex, and being of a 

 brownish or rufous colour. Whorls six, slightly 

 raised but well defined. Mouth small and circular. 

 Length of the shell about one-tenth of an inch, and 

 about half that in breadth. Animal much the same 

 colour as the shell. 



Hob. Rare and local in England and Ireland, not 

 found in Scotland. It has been found in Northum- 

 berland ; Airyholme Wood, Hemsley, and Ripon, in 

 Yorkshire ; Oxfordshire ; and one or two other places. 

 It prefers very damp situations, at the roots of moss and 

 Hepatica, in woods containing peaty soil. 



