188 HELIX §. 36. 37. 



483. H. jugosa Mighels. •\' 



T. late et profunde uinbilicata, depressa, subdiscoidea , ru- 

 bescenti-brunnea; anfr. .5 convexi, striis increnienti nunierosis, 

 elevatis; apcrtura circularis, niodificata anfractu penultimo cuin 

 laniina tenui, elevata, intrante; labrum simplex, tenue. — Diam. 

 %«". (M.) 



Helix jugosa Migh. in Bost. rioc. 18 45. p. 19. 

 Habitat in insula Sand^vicli.: Waioli. 



4S4. H. bilamellata Pfr. 



T. umbilicata, conica, tenuis, cornea , longitudinaliter valide 

 et regulariter plicata; spira elongata, sursuni valde attenuata, 

 acula; anfr. 9 carinati (carina exserta. acuta, subaculeata), ulti- 

 mus basi convexiusculus; umbilicus angustus, pervius; apertura 

 subverticalis, subquadrangularis, lamellis 2 coarctata: altera in- 

 trante in pariete aperturali, allera crassiore ad columellam; perist. 

 simplex, rectum. — Diam. niaj. 4, min. 3-/3, alt. 4/2 mill. (Coll. 

 Nr. 282.) 



Helix hilamellata Pfr. in Zcitschr. f. Mal. 18 43. p. 8 4. 



— — Chemn. cd. II. Helix t. 1 1 . f. 16 — 18. 

 Habitat in insula Opara (Cuming). 



§. 37. 



485. H. obtecta Lowe. 



T. umbilicata, depressa, superne planiuscula, basi convexa, 

 solidiuscula, eroso-scrobiculata , subgranulata, sordide alba; anfr. 

 5 convexi, prinii immersi, sequentes turgidi, ultimus superne 

 angulatus, antice deflexus; umbilicus mediocris, pervius; aper- 

 lura subcircularis; perist. continuum, vix expansum, intus sub- 

 incrassatum. — Diam. maj. 10, min. 9, alt. 5 mill. (Colj. Nr. 283.) 

 Helix obtecta Lowe Faun. Madcr. p. 47. t. 3. f. 20. 



— — Chemn. cd. II. HpHx N. 377. t. 9 1. f. 19 — 21. 



(S. Miiior, anfr. 4'/2; primis non immersis , unibilico angustiore ; diain, 



maj. 7, niin. 6 '/4, alt. 3 '/2 niill. 

 Habitat in insula Portosancto et llheo de Baxo. 



486. H. abjecta Lowe. 



T. perforata, globoso-conica, superne rugoso-striata, undique 

 niinute granulata, solida, rudiuscula, grisea, basi obsolete fusco- 

 unifasciata; spira elata; anfr. 6/2 — 7 convexi, ultimus subcarina- 

 tus, basi convexiusculus, antice subito deflexus; apertura perobli- 

 qua, circularis, intus fuscula: perforalio punctiformis; perisl. 



