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Journal de conchyliologie

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— 15i —<br />

et le B. turritum, distincte <strong>de</strong> ce <strong>de</strong>rnier, dont elle se rap-<br />

proche le plus par sa petite taille, sa forme plus ovale,<br />

sa strie suturale, lesfines stries spirales du <strong>de</strong>rnier tour, et<br />

la forme <strong>de</strong> l'ouverture et <strong>de</strong> la plaque columellaire Je la<br />

connais à la fois <strong>de</strong>s marnes bleues <strong>de</strong> Stazzano et <strong>de</strong> San-<br />

ta-Agata, près <strong>de</strong> ïortone (trois exemplaires) et <strong>de</strong> Lapugy<br />

en Transylvanie (<strong>de</strong>ux exemplaires).<br />

C. M. *<br />

Description <strong>de</strong> <strong>de</strong>ux espèces <strong>de</strong> Naticar <strong>de</strong>s<br />

terrains miocènes du S. O. <strong>de</strong> la France,<br />

Par R. Tournouer.<br />

1. Natica Aquitanica, Tournouer.<br />

Testa perfûrata, sub<strong>de</strong>presso-ovata, solida, striis subir-<br />

regularibus, tenuissimis longitudinaliter impressa ; spira<br />

brevissima ; anfractibus 5-6 sabrotundis, primis parum<br />

distinctis, ultimo peramplo; apertura mediocri, semilu-<br />

nari; columella late callosa, callo planato, <strong>de</strong>scen<strong>de</strong>nte,<br />

continuo, super umbilicum expansé ; umbilico lato, pafum<br />

profundo, funiculo spirali <strong>de</strong>stituto, limbo carinato extus<br />

distinctissime circumdato. — Longit. 18, diam. maj.<br />

\Smill.<br />

Loc. Occurrit frequens in slratis miocenicis inferis lo-<br />

corum « Merignac, Le Haillan, Saint-Paul <strong>de</strong> Dax, etc. »<br />

dictorum, Aquitaniœ.<br />

2. Natica Sallomacensis, Tournouer.<br />

Testa umbilicata, turbinato-globosa, CTàssiuscula, sub-

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