CLASSES, ORDERS, ETC. 9 1 



(d) Shell fusiform, large, yellowish-brown, glossy ; whorls 

 twelve ; mouth oval, pear-shaped, with two very strong plaits on 

 the base of the penultimate whorl, and two or three labial plaits 

 which are distinctly visible through the shell ; umbilicus small ; 

 basal crest slight ; clausilium with a notch on the margin near its 



Fig. 34. Clciusilia biplicata. 



base. Height ^rjths inch. On beech and ash trees. Moderately 

 distributed, but local. C. laminata.^ 



23. Cochlicopa. Shell oblong or oblong oval, very glossy, 

 transparent ; mouth pear-shaped ; outer lip thickened, not re- 

 flected. 



(a) Shell fusiform, pale yellowish-brown, glossy; whorls 

 seven ; spire produced, blunt ; suture shallow ; mouth pear- 

 shaped, with three or more plications. Length -^-tri 8 inch. 

 Among moss and decaying leaves. Moderately common, but 

 local. C. tridens? 1 



(b) Shell oblong, not so ventricose as C. tridens, yellowish-brown 

 or greenish- white, glossy ; whorls five to five and a-half ; suture 

 rather deep ; mouth oval, without plaits. Height ^-g-t 08 i ncn> 

 Among moss and decaying leaves. Common. C. lubrica. 92 



90 v. albinos, entirely white ; v. pellucida, thinner, more transparent, very 

 glossy: 



91 v. crystallina.) greenish-white, transparent, glossy. 



92 v. hyalina, greenish-white ; v. fusca, more or less a deep brown colour ; 

 v. hibricoides, smaller, more slender ; v. viridula, 'shaped like v. Zubricoides, but 

 greenish- white ; v. ovata, smaller, oval, spire shorter. 



