zua. 125 



Lainellte close, acute, approaching each other internally, the 

 ohlicpue one deep-seated, high up : two posterior palatal threads ; 

 a thick subcolumellar fold. Length two-thirds of an inch, 

 breadth a line and two-thirds. 



An exotic {1 from Malta or the Grecian Archipelago) species, 

 introduced by Montagu, on the authority of a Mr. Swainson, who 

 supposed it identical with some shells he had seen taken from Hyde 

 Park and Battersea Fields. Our description is taken from Turtons 

 example. 



ZUA. Leach. 



Shell spiral, cylindrical, elongate-ovate, smooth, and 

 shining with a vitreous lustre, derived from the polished 

 epidermis. Mouth ovate, peristome entire, simple, thick- 

 ened, but not reflected. Columella imperforate. 



Animal closely resembling that of Helix, and having- a 

 similar dentition ; the central denticle of each series is very 

 minute. 



The brilliant little shells composing this group, have a 

 peculiarity of habit which entitles them to be kept 

 generically apart from Bulimus as much as Pupa or 

 Balea. Comparatively few species have, as yet, been met 

 with. They represent (in conjunction with the next 

 genus) the Pwpina, among the Cyclostomidce. 



Z. lubeica, M tiller. 



Plate CXXV. fig. 8, and (animal), Plate G.G.G. fig. 5. 



Helix lubrica, Muller, Hist. Verm. pt. 2, p. 104.— Mont. Test. Brit. p. 390, 



pi. 22, f. 6. — Maton and Rack. Trans. Linn. Soc. vol. viii. 



p. 213, pi. 5, f. 12.— Dorset Catalog, p. 55, pi. 21, f. 18.— Turt. 



Conch. Diction, p. 64. — Ferus. Prodr. 374 (Cochlicopa). 



„ suleylindrica, Chemn. Conch. Cab. vol. ix. pt. 2, p. 167, pi. 135, f. 1235. — 



Dillw. Recent Shells, vol. ii. p. 952. 

 „ splendidula, Gmelin, Syst. Nat. p. 3655. 

 TurbOftnuscorum, Penn. Brit. Zool. ed. 4, vol. iv. pi. 82, f. 118? 

 Bulimus lubricus, Brug. Encycl. Meth. Vers, vol. i. p. 311. — Fleming, Brit. 

 Anim. p. 265.— Turt. Manual L. and F. W. Shells, p. 82, 



