56 Lhomme. — Coquilles fossiles trouvées dans les sables de St-Gobain. 



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Cerithioderma cancellaroides Meller. 

 Cerithiuyn Guilielmi de Raine. 



— intermissum Desh. 

 Vertagus diastomoïdes Desh. 

 Sandbergeria regularis Meller. 

 BiUium semigranulosum Lamk. 



— transenna Rayan. 



— Philippardi Wat. 

 Newtoniella trilorquata Desh. 



— prœlonga Desh. 



— mundula Desh. 

 Colina Labechei Desh. 

 Trypanaxis pervia Desh. 

 Potamides alternans Desh. 



— . Bouryi Gossm. 

 Ovula (Transovula) vibrayeana de Raine. 

 Cyprœa interposita Desh. 

 Erato Wateleti Desh. 

 Neosimnia nov. sp. 

 Lampusia (Sassia) Lejeunei Meller. 

 Cominella acies Wat. 

 Tritonidea semiplicata Desh. 



— subala Desh. 

 Siphonalia Ludovici de Raine. 

 Sue s Sonia exigua Desh. 

 Strepsidura turgida Sol. 

 Mayeria bifasciata Sow. 



Pty chair actus angustus Desh. 

 Latirus (Latirulus) subaflinis d'Orb. 

 Slreptochetus segregatus Desh. 

 Mitra extranea Desh. 



— ' tetraptyca Gossm. 

 Lyria harpula Lamk. 

 Ancilla canalilera Lamk. 

 Cancellaria dubia Desh. 

 Conus bicoronatus Meller. 

 Cryptoconus interpositus Desh. 

 Borsonia marginata Desh. 

 Bathytoma (Epalxis) mulligyrata Desh. 

 Asthenostoma quadracincta Gossm. 

 Surcula polycesta Rayan. 



— decipiens Desh. 



— (Ancislrosyrinx) tercbralis Lamk. 



— (Apioloma) pirulata Desh. 



— (Catenotomaj catenula Desh. 

 Ilemipleurotoma metablela Gossm. 



— cancellata Desh. 



— Nilssoni Desh. 

 Eopleuroloma Laionkairei Desh. 



— cxpcdita Desh. 



— slriatuUiris Desh. 



— spreia Desh. 



— cnrvicosla Lamk. 



— Larleli Desh. 



