186 
IIELIX §. 35. 
vix convexa; anfr. 472 convexi; umbilicus latus, pervius; apertura 
subrotunda, 7 dentata, lamellis 2 parallelis, intrantibus parietis 
aperturalis coarctata; perist. simplex, acutum, margine dextro 
dentibus 5 acutis munito. — Diam. maj. 4, min. 3, ait, 1‘/2 mill. 
(CoII. Nr. 278.) 
Helix contorta (Helicodonta) Fer, hist. t. 51 A. f. 2. 
— — Fir. in Voy. de Freycin. Zooi. p. 469. 
— — Desh. in Fei\ hist. p. 10. 
— — Chenm. ed. II. Helix t. 100. f. 1 ~5. 
— interxayinata Mighels in Bost. Proc. 1843. p. 18. 
Habitat in insula Sandwich. ; Oahu, 
479*. H. daedalea Gould. -f 
T. parva, discoidea, rubro-castanea , fusco tessellata, costel- 
lis radiantibus acutis confertis scabra, subtus acetabuliformis; 
spirae anfr. ad 6 arcte voluti, duplo altiores quam lati, ad peri- 
pheriam retundati, infra haud planulati; sutura impressa; aper- 
tura angusta, verticalis, lunata, fauce lamellis 9 volventibus in- 
structa, quarum 4 ad anfractum penultimum, 1 ad columellam, 
^^'hft^asim,.^.^^djabium dispfis^is^ — Alt. '/ 20 , lat. Yio poU. (G.) 
y. Helix daedalea')Sould 18'46. Exped. shells p. 21. 
Habitat in ins. Taheiti, Matea. 
480. H. sexlamellata PBr. 
T. angustissime perforata, subsemiglobosa, tenuis, regulari- 
ter costulala, lutescens, maculis castaneis tessellata; spira elevata, 
obtusa; anfr. 6 convexi, angusti, ultimus basi planulatus; apertura 
depressa, oblique lunaris, lamellis 6 acute elevatis coarctata: 
3 parallelis in ventre anfractus penultirai, 3 in fundo aperturae, 
illis oppositis, iuteijectis pluribus minoribus, obsoletis; perist. 
simplex, acutum. — Diam. maj. Sy*, min, 3, ait. 2 V 4 niill. (Coli. 
Nr. 279.) 
Helix sexlamellata Pfi\ in Zeitschr. f. 3Ial. 1843. p. 85. 
— — Ch&mn. ed. II. Helix t. 100. f. 44 — 48. 
Habitat in insulis Gambier. 
481. H. oparica Anton. 
T. subperforata , orbiculalo-convexiuscula, tenera, costulato- 
't^tftSh',%!few‘se^ns,’oIasblete rubro-raaculala; spira depressa; anfr, 
'ft4.J/^^^angust^ convexiusculi; apertura late lunaris; perist. acu- 
\um ad umbilicum usque productum; dentes 3 lamelliformes in 
pariete aperlurali, 4 in margine basali. — Diam. maj. 3 / 2 , min. 3, 
ait. 2 mill. (Coli. Nr. 280.) 
Helix opanica Anton Verz. p. 39. N. 1 443. 
