48 



NANTES . 



BULL. SOC. SC. NAT. OUEST. — T. 



Beyrichia Hardouiniana M . 

 Rouault. 



Belocrinus Cottaldi M un. Chai. 



Orthoceras Lorieri d'Orb. 



Orthoceras sp. 



Jovellania Davyi Barrois 



Cyrtoceras sp. 



Cyrtoceras sp. 



Pleur otomaria (Bembexia) Lar- 

 teti Mun. Chai. 



Murchisonia (Goniostropha) Ba- 

 chelieriM. Rouault 



Murchisonia {Goniostropha) Mar- 

 si QEhlert 



Murchisonia(Goniostropha)Chal- 

 masi QEhlert 



Murchisonia (Goniostropha) Da- 

 vousti QEhlert 



Murchisonia ( Hormotoma ) Le- 

 besconlei QEhlert 



Murchisonia (Cœlocaulus) David- 

 soni QEhlert 



Murchisonia {Hormotoma) clavi- 

 cula QEhlert 



Loxonema melanioïdes QEhlert 



Acroculia Protêt QEhlert 



Platystoma naticopsis QEhlert 



Platystoma janlhinoïdes QEhlert 



Horiostoma Barrandei Mun. Chai. 



Horiostoma multistriatum QEh- 

 lert 



Horiostoma Konincki QEhlert 



Horiostoma princeps QEhlert 



Horiostoma echinatum QEhlert 



Bellerophon auricaulari QEhlert 



Cyrtoliles Delanouei M. Rouault 



Naticopsis filosa QEhlert 



Naticopsis Sirodoti Mun. Chai. 



Littorina Hermitei Mun. Chai. 



Conularia Gervillei d'Arch. et de 

 Vern. 



Tenlaculites Velaini Mun. Chai. 



Pterinea costato-lamellosa QEh- 

 lert 



Pterinea Pailletei de Vern. 



Avicula (Liopteria) Gervillei QEh- 

 lert 

 Avicula (Liopteria) Kerfornei 



Œhlert 

 Avicula (Liopteria) leucosia QEh- 

 lert 

 Avicula pseudolœvis QEhlert 

 Avicula nov. sp. 

 Palœoneilo Rauliniana M. Rou- 

 ault 

 Palœoneilo armoricana QEhlert. 

 Palœoneilo nov. sp. 

 Modiomorpha Esopei QEhlert 

 Guerangeria Gahardiana M . Rou- 

 ault 

 Modiolopsis Verneuili QEhlert 

 Grammysia Cotenlina QEhlert 

 Microdonella bellistriata Conrad 

 Conocardium Marsi QEhlert 

 Lingula? Murchisoni M. Rouault 

 Çraniella Meduanensis QEhlert 

 Chonetes sarcinulata Schloteim 

 Chonetes plebeia Schnur. 

 Chonetes Boblayei de Vern. 

 Chonetes Davousti QEhlert 

 Strophodonta Leblanci M. Rou- 

 ault 

 Leptœna Murchisoni 'd'Arch. et 



de Vern. 

 Leptœna interstrialis Phillips 

 Leptœna Sedgmcki d'Arch. et de 



Vern. 

 Pleclambonites rhomboidalis 



Wahlenberg. 

 Orthotlietcs (Streptorhyncus)um- 

 braculum Schlotheim, var- 

 torta QEhlert 

 Orthis Sert urieri M. Rouault 

 Orthis Hamoni M. Rouault 

 Orthis (Schizophoria) vulvarius 



Schlotheim. 

 Orthis Trigeri de Vern. 

 Scenidium Baylei M. Rouault 

 Spirifer lœvicosla Valenciennes 

 Spirifer liousseaui M. Rouault 



