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Journal de conchyliologie

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— 354 —<br />

Habitat in regioneDominicuna insulœ Haïti, Antillarum.<br />

(W. M. Gabb.)<br />

5. Choanopoma Moreletianum.<br />

T. late et perspective iimbilicata, suborbicularis, <strong>de</strong>-<br />

pressa, tenuiuscula, diaphana, costulis stibdistantibus<br />

spiraliter cincta, lamellis gracilibus ^ compressis, adoccur-<br />

sum costularum spinulas cavas^ tubuliformes ^ brèves<br />

emitteiitibus longitudinaliter sculpta [interstitiis lamel-<br />

lan lit lenuissime slriatis), albida ; spira subplanata,<br />

medio vix prominula^ apice rotundato, obtusulo; sutura<br />

profun<strong>de</strong> impressa, subcanaliculata, occursu lamelldrum<br />

<strong>de</strong>nticulata ; anfrA ] j'isubplanati, embryonalea 1 1/2 /ce-<br />

vigati, albidi, ultimus subito <strong>de</strong>scen<strong>de</strong>ns, basi planiuscu-<br />

lus; apertura oblique subhorizontalis, circularis, intus<br />

albida ; peristoma non omnino liberum, duplex, albidum,<br />

fusco vix obscure guttatum, externum dilatatum, tenue,<br />

foliaceum, concentrice striatum, juxta i^isertionem in<br />

alam latam, adnatam abiens, internum tenue, rotunda-<br />

tum, prominulum, brevissime tubuliforme. — Operculum<br />

in lus subplana tum, medio vix concaviusculum , lutescens,<br />

extus cavatum, marginibus anfractuum val<strong>de</strong> prominen-<br />

tibus et fere verticaliter éleva lis, albidum. — Diam.<br />

maj. M, min. vix 10, ait. 5 mil l. Apertura 3 mill. longa<br />

ei/a/a.(Coll. Bland.)<br />

Habitat in regione Dominicatiainsulce Haïti, Antillarum.<br />

(W. M. Gabb.)<br />

4. Helicina Gabbi.<br />

Helicina Gabbi, Crosse et Newcomb, m?.<br />

T. subconoi<strong>de</strong>o-globosa, solida, sublœvigaio, sed hic et<br />

llic quasi malleata, nitidula, purpureo-rufescens ; spira

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