WORMS, TESTACEA. 59, Helix. 191 



Shell with a margined tube extending beyond the furface of the 

 shell, in the plate of an umbilicus. 



531. H.fasciata. White with 3 transverse rich marone 

 belts on the first whorl, smooth : whorls 3, the first 

 more tumid. 



Adams Linn. Trans, v. I. \,f. 20. 21., 



Shell slightly umb.ilicate, pellucid, with 3 belts, the middle-one 

 broad, the two lateral-ones narrow. 



532. HI nilidissima. Horny, glossy, with 2 whorls, very 

 finely striate transversely. 



Adams Linn. Trans, v, t. x.fig. 22-24, 



,533. 11. Mcolor. Slightly umbilieate, smooth, with 2 

 whorls. 



Adams Linn. Trans v. tab. i*/. 25-27. 



Shell differing from the last, in being perfectly smooth, entirely 

 ; devoid of glofsiness, and in having the inside of the shell white. 



C. With rounded whorls, imperforate, 

 534. II. vivipara. Yellowish-olive, with 3 brown bands, 

 subconic, obtuse, finely striate : aperture subor- 

 bicular. 



Br„ Zool. t. 84./. 132. Dofiov. t. 87. Da Cestat. 6./. 2. 



Shell an inch and a half long, an inch wide, with 6 tumid whorls, 

 the larger one with 3 narrow bands, the rest with 2, within froooth 

 white banded : aperture contracted a little at the upper-part ; 

 pillar reflected. • 



,535. H. nemoralis, Subglobular, diaphanous, variously 

 banded : aperture roundish-lunate. 



i 1. Citron flefh-colour, or tawny, without visible hands ; lips 

 brown. 

 Da Costa t. 5. fig. 1. 2.8. 



-e. Citron, greenish-yellow, or flesh-colour, with a single brown 

 band : lips brown. ' 

 Da CosLa.t. $,/. 3, Donov, t. 13. Upper and middle fig. 



,3. Citron, greenish-yellow, or flesh-colour, with numerous broa- 

 der or narrower brown bands 1 lips brown, 

 Da Casta t. 5./, 4. 5, Donov. t. 13. 3 lower fig, 



4. Variously coloured and banded, lefs : lips white and thick= 

 ened. 

 Chemn. Conch, g. t. 113../". 1199.— 1201. 



Shellvhout an inch wide, with 5 much rounded whorls, obtuse, 

 smooth or slightly striate : aperture broader.than it is long. 



536. H: hortensis. Yellowish, with 4 tawny bands inter- 

 rupted by white spots ; lip pure whae. 



Br. Zool. f. 84./. 129. Donov. t. 131. Da Costa t. 4 /. 1. 



Shell an inch and a half wide, whitish or yellowish, with 4 

 interrupted bands, the third of which is broader, a little rugged 

 with minute dots : whorls 4, with obscure plaits : lip margined, 

 white. 



537. H. fusca. Rufous horn-colour, pellucid, nearly 

 smooth : aperture lunate. 



Montague Brit. Shells p. 424, tab. 31,/. 1. 



Shell about g eighths of an inch wide, hardly a quarter of an 

 inch high, with 5 or 6 very slightly wrinkled whorls : lip thin, a 

 little reflected at the lower margin. Resembles H. rufescens, but 

 is lefs rugged, and has no trace of umbilicus. 



538. H. mriegata. Subpellucid, smooth, with 4 whorls 

 marked with red lines ; the first whorl tumid. 



