550 
DE RAINCOURT. 
— FAUNE DE SEPTEUIL. 
19 mai 
Lucina saxorum, Lamk. 
— striata, Desh. 
Erycina radiolata, Lamk. 
— II. sp. 
Lepton nitidissimum ? Desh. 
Crassatella grignonensis, Desh. 
— lœvigata, Lamk. 
— trigonata^ Lamk. 
Cardita serrulata, Desh . 
Nîicula subovata, Desh. 
— minor, Desh. 
Trigonocœlia deltoïdea, Lamk. 
~ n. sp. 
Limopsis. 
Arca barbatula, Lamk. 
— angusta, Lamk. 
— scapulina, Lamk. 
— Gisseyi, de Rainc^ 
— qiiadrilatera, Lamk. 
Modiola crenella, Desh. 
Avicula Hornesi ? Desh. 
Lima obliqua, Lamk. 
— - bulloïdes, Lamk. 
Ostrea flabellula, Lamk. 
Anomya tenuistriata, Desh. 
Leptockiton Raincourti, de Roche. 
Tonicia parisiensis, de Roche. 
Lepidopleurus Heberti, de Roche. 
Dentalium sulcatum^ Lamk. 
Gadus parisiensis ? Desh. 
Patella delicatula, Desh. 
Fissurella incerta, Desh. 
Parmophorus. 
Calyptrœa lamellosa, Desh. 
Cœcum lituus, Desh. 
Turritella semistriata. 
— fasciata, Lamk. 
— n. sp. 
— n. sp. 
— 11. sp. 
Scalaria decussata, Lamk. 
— turritellata, Defr. 
— multilamella, Bast. 
— heteromorpha, Desh. 
— striatularis, Desh. 
Mathilda. 
Littorina incompleta, Desh. 
Diastoma costellata, Desh. 
Lacuna, 
Lacunella. 
Truncatella parisiensis, Desh. 
Keilostoma minor, Desh. 
Adeorbis Fischeri, Desh. 
Melania lactea, Lamk. 
— fibula var. Desh. 
— minutissima, Desh. 
— n. sp. 
Bithinia Demaresti, C. Prévost. 
— microstoma, var. Desh. 
-- Eugenii, Desh. 
— nitens ? Desh, 
— dissita, Desh. 
— globulus, Desh. 
Aciculina gracilis, Desh. 
— n. sp. 
■ Pyramidella terebellata, Lamk. 
Eulima, n. sp. 
— n. sp. 
Odostomia hordeola, Lamk. 
— n. sp. 
Turbonilla acicula, Desh. ^ 
— parva, Desh. 
— angusta, Desh. 
Tornatella Ferussaci,'Desh.. 
— sulcata. 
— sphœricula, Desh. 
Ringicula Raincourti, Morlet. 
— Langlassei, Morlet. 
Bullœa, n. sp. 
Bulla conulus, Desh. 
— Caillati, Desh. 
— Lebrunii, Desh. 
— assula, Desh. 
Solarium plicatum, Lamk. 
— ammonites, Desh. 
Bifrontia marginata, Desh. 
— serrata, Desh. 
Limnœa. 
Planorbis subangulatus, Desh. 
— nitidulus, Desh. 
Pedipes Pfeifferi, Desh. 
Auricula Lamarckiî, Desh. 
Turbo denticulatus, Lamk. 
Trochus Lamarckii, Desh. 
Phasianella parisiensis, d'Orb. 
Teinostoma rotellœformis, Desh. 
Delphinula striata, Lamk. 
— conica, Lamk. 
— n. sp. 
— n. sp. 
— n. sp. 
Natica Caillati, Desh. 
