80 GASTEROPODA. HELICID®. 
STIRPS VI. 
Synopsis Generum. 
Peritrema incrassatum, reflexum, postice nullum. 
Wiminlicus perioratus sce.) Sina + 33. Ena. 
Peritrema incrassatum, posticé inchoatum. Umbi- 
“ECE EISIS- I LT 1 aa PPI SP 34. Zua. 
Genus 33. Ena. 
Ena, Prideaux MSS. 
Testa ovato-oblonga, ad apicem obtusiuscula. Apertura 
semiovalis. Peritrema incrassatum, reflexum ; posticé nullum. 
Umbilicus perforatus. Tentacula superiora elongata, ad api- 
cem superné oculigera. Ocw/i minutissimi, rotundati, non 
prominuli. 
Shell ovately-oblong, its apex rather obtuse. Aperture semi- 
oval. Peritreme thickened, reflected; wanting behind. Um- 
bilicus perforate. Upper tentacula elongate, bearing the eyes 
at the upper aspect of their extremities. Eyes very minute, 
round, not prominent. 
The E£ne inhabit moist places, beneath dead leaves and 
stones, or amongst rocks. 
1. ENA MONTANA. 
E. testa fuscé; anfractibus transversim striatis; peritremate 
albo. 
Bulimus montanus, Drap. Hist. des Moll. 74. pl. 4. fig. 22. 
Helix Lackhamensis, Mont. Test. Brit. 394. t. 12. fig. 3; 
M.& R. Trans. Linn. Soc. vii. 212; Flem. Edinb. Encyel. 
vu. 78; Dill. Desc. Cat. 953; Turt. Conch. Dict. 64. 
Animal cinereum, nonnunquam § subnigricante-tessellatum. 
Oculi atri. 
Habitat in sylvis, et nemoribus, sub foliis latitans. 
Shell fuscous, whorls transversely striated ; peritreme white. 
Height nearly three-quarters of an inch. 
