186 IIELIX §. 35. 



vi.v coiivexa; anfr. Vj-i convexi; umbilicus lalu.s, pervius; iipertura 

 sul)rolun(la, 7 denlata, laineliis 2 parallelis, intrantibus parietis 

 apertuialis coarctata; perist. simplex, acutum , margine dexlro 

 dentibus o acutis munito. — Diam. maj. 4, min. 3, alt. 1 '/2 mill. 

 fColl. i\r. 278.) 



Eelix contorta (Helicodonta) Fer. hist. t. o1 A. f. 2. 



— — Fer. iii Voy. de Freycin. Zool. p. 469. 



— — Desh. in Fer. hist. p. 10. 



— — Chemn. ed. II. Heli.\ t. 100. f. 1 —5. 



— intercarinata Mighels in Bosi. Proc. 18 43. p. 18. 

 Habilat in insula Sandwich. ; Oahu. 



479% H. dacdalea Gould. f 



T. parva, discoidea , rubro-castanea , fusco tessellata, costel- 

 lis radiantibus aculis confertis scabra, subtus acetabuhformis; 

 spirae anfr. ad 6 arcte voluti, duplo altiores quam lati, ad peri- 

 pheriam rotundati, infra haud planulati; sutura impressa; aper- 

 tura angusta, verticalis, lunata , fauce lamellis 9 volventibus in- 

 structa , quarum 4 ad anfractum penultimum, 1 ad columeliam, 



2 ad basim, 3 ad labium dispositis. — Alt. '/20, lat. '/io poll. (G.) 

 Hdix daedalea Gould 1846. E.xped. shells p. 21. 



Habitat in ins. Taheiti, Matea. 



480. H. sexlamellata Pfr. 



T. angustissime perforata, subsemiglobosa, tenuis, regulari- 

 ter costulata, lutescens, maculis castaneis tessellata; spira elevata, 

 obtusa ; anfr. 6 couvexi, angusti, ultimus basi planulatus ; apertura 

 depressa , oblique lunaris , lamellis 6 acute elevatis coarctata : 



3 parallelis in ventre anfractus penultimi , 3 in fundo aperturae, 

 illis oppositis, interjectis pluribus minoribus, obsoletis; perist, 

 simplex, acutuin. — Diam. maj. 3 '/4, min. 3, alt. 2V4 mill. (Coll 

 Nr. 279.) 



Helix sexlamellata Pfr. In Zeitschr. f. 3Ial. 1845. p. 83. 



— — Chemn. ed. II. Helix t. 100. f. 44 — 48. 

 Habitat in insulis Gambier. 



481. H. oparica Anton. 



T. subperforata , orbiculato-convexiuscula, tenera, coslulalo- 

 striata, fuscescens, obsolete rubro-maculata; spira depressa; anfr. 

 4/2 — 5 angusti, convexiusculi; aperlura late lunaris; perist. acu- 

 lum ad umbilicum usque productum; dentes 3 lamelliformes in 

 pariete aperlurali, 4 in margine basali. — Diam. maj. 3 ''2. min, 3. 

 alt. 2 mill. (Coll. Nr. 280.) 



Helix opanica Anton Verz. p. 39. N, 1443. 



