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Journal de conchyliologie

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— 157 —<br />

attenuato, acuto ; nucleo subexcentrico ; anfractibus<br />

^ sensim crescentibus ; pagina externa plicato-striatula,<br />

interna granosa, ad marginem lœvigata.<br />

Animal?<br />

Obs. Forma insignis testa et operculo inter Cyclophoros<br />

et Cycîostomata (gênera inter se animalis structura dis-<br />

crepantia) quasi média. Operculum operculo generis Cy-<br />

clostomatis forma subovali et anfractibus simillimum,<br />

sed corneum nec testaceum. Testa tenuitate, colore et<br />

aspectu Cyclophoris sat vicina, charactere peculiari la-<br />

mellarum anfractus ullimi gau<strong>de</strong>t (!).<br />

1. EuPTYCHiA METABLETA, Cfosse et Fischer.<br />

Testa umbilicata, globoso-tur^binata, tenuiuscula, sub-<br />

translucida, haud nitens, striis vix obliquis, sat confertis,<br />

validis longitudinaliter impressa, sub epi<strong>de</strong>rmi<strong>de</strong> tenui,<br />

partim <strong>de</strong>cidua, palli<strong>de</strong> luteo straminea cinnameo-ful-<br />

vida; spira turbinato-conica, apice obtusulo; sutura<br />

leviter impressa; anfractus 6 1/2-7 convexi, sat rapi<strong>de</strong><br />

accrescentes, embryonales 2 lœvigati, corneo-fitsci, ulli-<br />

mus subascen<strong>de</strong>ns ,<br />

magnus, lamellis 6-8 longitudinalibus,<br />

compressis, prominentibus, pone marginem externum<br />

elega?itissime ornatus, infra peripheriam interdum fusco<br />

obscure uni aut bizonatus, basi circu umbilicum anguste<br />

infundibuliformem rotundatus ; apertura subovato-circu'<br />

laris, intus saturaté nigricans ; peristoma breviter<br />

expansum {interdum lamella vicina subduplicatum), in<br />

adultis speciminibus continuwji, saturaté nigricans, in<br />

vicinio anfractus penultimi subangulatum. — Operculum<br />

(1) Cyclophorus foliaceus Cheranitzi eo<strong>de</strong>m charactere paululum<br />

gau<strong>de</strong>t, sed operculo typuni generis Cyclophori omnino<br />

exhibente val<strong>de</strong> discrepat.

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