90 
HELIX 8. 19. 
^ 218. H. protensa Ferussac. ^ 
T. umbilicata, depressa, striata, diaphane flava; spira vix 
elevata; anfr. planiusouli, celeriter accrescentes; umbilicus 
mediocris, pervius; apertura magna, lunato-ovalis , subtus dila- 
tata; perist. simplex, acutura, margine columellari subarcuato, 
declivi, late reflexo. — Diam. maj. 20, rain. 17, ait. 8 — 9 raill. 
( ex ic.) 
Helix protensa (Helicella) Fer. pr. 207. Hist. t. 82. f. 3. 
— — Chemn, ed. II. Helix N. 506. t. 83. f. 4 — 6. 
Habitat in Syria, Standie (Olivier, F6r.). 
^ 219. H. caplllaeea Ferussac. 
T. umbilicata, depressa, striatula, corneo-lutescens ; spira vix 
elevata; anfr. 4 celeriter accrescentes, vix convexi, ultimus vix 
descendens, basi convexior; umbilicus mediocris, pervius; aper- 
tura lunato-ovalis ; perist. simplex, acutum, margine columellari 
subarcuato, reflexiusculo. — Diam. maj. 21 , min. 18, ait. 10 mill. 
(ex ic.) 
Helix capillacea (Helicella) F4r. pr. 206. Hist. t. 82. f. 5. 
— — Chemn. ed. H. Helix N. 507. t. 83. f. 7 — 9. 
Habitat ad Port-Jackson. (F6r.) 
220. H. challcophila Orbigny. 
T. orbiculata, umbilicata, tenuis, substriata, diaphana, griseo - 
cornea; spira obtusa; anfr. 6; apertura rotunda; labrum tenue. — 
Diam. 19, ait. 472 raill. (0.) 
Helix chalicophila (Helicella) Orb. synops. p. 6. 
— — Orb. voy. p. 25 1 .' t. 27. f. 8 — H . 
Habitat in provincia Chiquitensi Boliviae. 
221. H. skiaphlla Orbigny. •f 
T. orbiculata, convexa, umbilicata^ tenuis, sublaevigata, dia- 
phana, albida; spira obtusa; anfr. 6; apertura rotundata; labrum 
tenue. — Diam. 12, ali. 5 mill. (0.) 
Helix skiaphila (Helicella) Orb, synops. p. 5. 
— — (h'b. voy. p. 249.‘t. 27. f. 4 — 7. 
Circinaria skiaphila Beck ind. p. 23. 
Habitat prope Cochabamba Boliviae. 
Obs. «H. omalomorphae aHinissima. » (0.) 
^ 222. H. alliaria Miller. 
T. anguste umbilicata, convexo-depressa , polita, nitidissima, 
diaphana, superne fulva, subtus albida; anfr. 5 vix convexiusculi. 
