46 
Sectio Campylaea. *) 
Testa late umbilicata, planospira, orbiculato -depressa; anfractus — 6 planulati, 
ultimus ad aperturam deflexus; apertura perobliqua, lunato -ovata vel rotundata; peristoma 
labiatum, plus minusve incrassatum, marginibus approximatis, contiguis vel callo junctis, 
supero expanso, columellari dilatato, saepius ad basin reflexo, rarissime umbilicum tegente. 
Helix portosanctana Sowerby. 
Tab. 12. Fig. 5— 7. 
Testa mediocriter umbilicata, depressa, undique setulis rigidis brevissimis confer- 
tissime obsessa, superne oblique rugoso -striata, rufa, fasciis 2 fuscis ornata, basi oblique 
radiatim striata, lutescens; spira subprominula; anfractus 5 convexiusculi, ultimus antice 
descendens; apertura perobliqua, oblongo -rotunda; peristoma carneum, marginibus con- 
niventibus, callo crassiusculo juuctis, supero expansiusculo, basali incrassato, reflexo, um- 
biliciun semitegente. 
Diam. maj. 30, min. 24, ait. 14 raillim. Specim. raax. 
— — 23, — 19, — 10 — — minim. 
Heluc portosanctana Sowerby in Zool. Journ. I. 1824. p. 57. t. 3. fig. 5. 
— — Lowe Primit. p. 46. n. 26. t. 5. fig. 15. 
— — Wood Suppi, t. 8. fig. 79. 
— — Pfeiffer Monogr. I. p. 367. n. 954. 
— — — in Chemn. II. Het. pars 2. p. 233. n. 696. t. 111. fig. 17 — 19. 
— — Lamarck edit. Deshayes VIII. p. 92. n. 137. 
— — Deshayes in Fer. hist. I. p. 42. n. 58. t. 67. fig. 9 — 10. 
— — Reere Conch. icon. t. 134. fig. 828. 
Habitat in Portosancto. Frequentissima. 
Sectio Leptaxis. **) 
Testa imperforata, tenuis, globosa vel depresse-globosa; anfractus o — 3^, ultimus 
antice descendens, basi vent roso -convexus; columella nitida, stricta, intrans, basi plus 
minusve dilatata; apertura magna, lunato -rotundata vel subrbombea; peristoma simplex, 
intus labiatum, marginibus conniventibus. 
*) Albers Heliceen p. 81. 
**) Lowe Synopsis p. .3. 
