48 
Habitat in Maderae regione Castaneae vescae, in gramineis, sub lapidibus, ad mu- 
ros; nec non in Insulis desertis magna et boreali Haud frequens. Var. /5. in Insula 
deserta australi degit. 
Helix furva Lowe. 
Tab. 12. Fig. 17 — 19. 
Testa imperforata, subglobosa, tenuis, supra obsolete malleato - rugosa, striata, sor- 
dide lutescens, fusco unifasciata; anfractus 6 subplanulati, ultimus vix angulatus, basi con- 
vexus, antice breviter descendens; sutura distincta; apertura paulum obliqua, rotundato- 
lunaris;' peristoma simplex, acutum, intus albo-labiatum, margine columellari subincrassato, 
intrante. 
Diam. maj. 19^, min. 17, ait. 12 millim. 
Helix furva Lowe Primit. p. 40. n. 8. t. 5. fig. 2. 
— — Pfeiffer Monogr. I. p. 29. n. 31. 
— — — in Cliemn. II. Hei. pars 1. p. 231. n. 202. t. 29. fig. 20 — 22. 
— — Lamarck edit. Deshayes VllI. p. 96. n. 145. 
— — Reeve Conch. icon. 1. 136. fig. 851. 
Habitat in Maderae regione Laurorum. Rara. 
55. Helix vulcaiiia Lowe. 
Tab. 13. Fig. 1 — 6. 
X 
Testa imperforata, depressa, tenuis, arcuato- rugosa, virenti- cornea, fusco bifasciata; 
spira breviter conoidea, apice obtusiuscula; anfractus 5i depressi, ultimus dilatatus, antice 
sensim deflexus, medio obsolete angulatus, basi conve.xus; apertura perobliqua, lunato- 
rotundata ; peristoma simplex, callo violaceo intus labiatum, marginibus approximatis, ba- 
sali incrassato, ad columellam dilatato, calloso, appresso. 
Diam. maj. 23, min. 19, ait. 12 millim. 
Helix vulcania Lowe Synops. p. 4. n. 7. 
— — Pfeiffer Monogr. III. p. 147. n. 782. 
— — — in Chemn. II. Hei. t. 154. fig. 13 — 14. 
— — Reeve Conch. icon. 1. 135. fig. 843. 
Var. (i. (Fig. 1 — 3) major, testa globoso -depressa, anfractu ultimo tumido. 
Diam. maj. 27, min. 23, ait. 15 millim. 
Helix leonina Lowe Synops. p. 4. n. 8. 
— vulcania var. Pfeiffer Monogr. IH. p. 148. 
Habitat in Insulis desertis magna et boreali. Var. /?. in Insula deserta australi 
degit. 
