390 
HELIX 8. 71. 72. 
strigis angustis, rufis, approximatis, undulatis, interdum ramosis 
et ad suturam fascia pallida, maculis irregularibus rufis tessellata, 
ornata; spira plana; anfr. V/t convexi, ultimus inflatus, subcom- 
pressus, antice vix descendens; apertura subobliqua, ampla, 
lunato-rolundala, intus concolor; perist. tenue, expansum, mar- 
ginibus disUmtibus, supero expanso, basali breviter reflexo, colu- 
mellari membranaceo -dilatato, fornicalim reflexo, perforationem 
tegente. — Diam, maj. 25, min. 20, ait. 12 mill. (Mus, Guming.) 
Helix hians Pfr. in Proc. Zool. Soc. 1845. p. 130. 
Habitat . . , ? 
* f 
1016. H. 
nautiliformls (Drepanostoma) Porro. 
T. umbilicata, depressa, suborbiculata, arcte obvoluta, cor- 
nea, hispida; spira immersa; anfr. 5, superne vix conspicui, 
ultimus magnus, reliquos involvens ; umbilicus perspeclivus; aper- 
tura sub verticalis, anguste lunaris; perist. rubello -fuscum, re- 
flexum, inargiuc dextro superne arcuatim dilatato. — Diam, 
maj. 6%, min. 5 / 2 , ait. 3% mill. (Coli. Nr. 618.) 
Drepanostoma nautiliforme Porro Malae, p. 23. t. 1. f. 3. 
— — Po7TO Bibi, itiil. 1836. toni. 82.’ 
— — Villa disp. syst. p. 56. 
— ■ ~ Guerinpo^^tli. 
Helix nautiliformis Cantr. Malae, p. \M, t 13. f. 3. 
— “ Ross7H. X. p. 14. f. 613.' 
— — Desh. in Fer. hist. p. 14, t. 72. f. 1 1. 
— — Chemn. ed. II. Helix N. 571. t. 90. f. 4-9. 
Chlorilis drepanostoma Beck ind. p. 29. 
Habitat in Lombardia. 
§. T2. 
1017. H. liinnaeana Pfr. 
T. umbilicata, depressa, utrinque convexiuscula, acute cari- 
nata, pallide fulva, superne rugoso-raalleata , basi minute et obli- 
que rugulosa; anfr. 5/2 lente accrescentes, plaaulali, ultimus basi 
subinflatus, antice vix descendens; umbilicus majusculus, cylin- 
dricus; apertura angulato-lunaris, ad carinam canaliculata; perist. 
incrassatum, carneum, marginibus callo junctis, supero brevi, 
expanso, basali arcuato, reflexo, columellari breviter descendente, 
subdilatalo. — Diam. maj. 62, min. 57, ait. 28 mill. (Mus. Guming.) 
Helix Linnaeana Pfr, in Proc. Zool. Soc. 1845. p. 43. 
Habitat . . . ? 
