J. Chédeville. ■ — Guide géologique au Fayel (Oise). 



230 



linncTciformis, Cossm. 

 verneuilensis, de Raine, et 

 M. Ch. 



bulimoïdes, Desh. 

 Pyrgulina Adams. 



Clievallieri, Cossm. 

 Belonidium Cossm. 



Moileti, Cossm. 

 Discobasis Cossm, 

 = Aciculina Dosh. 



deniissa, Desh. 

 Eulima Risso. 



subimbi'if.ata, Cossm. 

 Scalaria Lamk. 



crispa, Lamk. 



Godini, de Boury. 



acumiensis, de Boury. 



brevicula, DeSh. 



Bourdoti, de Boury. 



afflnis, Desh. 



semicostata, Sow. 



Deslonchampsi, de R. et 

 M. Ch. 



fayellensis, de Boury. 



Gouldi, Desh. 



:= propinqua, Desh. 



Chevallier!, Cossm. 

 Tenuiscala de Boury. 

 = Scalaria Lamk. 



Michelini, Desli. 



primula, Desh. 

 Arcisa Moch. 

 = Scalaria Lamk. 



auversiensis, Desh. 

 Aclis Leven. 

 = Scalaria Lamk. 



minutissima, Desh. 

 Adeorbis S. "Wood. 



tenuistriatus. Desh. 



= mitis, Desh. 



intermedius, Desh. 



bicarinatus, Lamk. 



= concava, Lamk. 



tricostatus, Desh. 

 Natica Adanson. 



Noœ, d'Orb. 



*Caillati, Desh. 



epiglottinoïdes, Desh. 



*perforata, Desh. 



lineolata, Desh. 



hantoniensis, Pilk. 



labellata, Lamk. 



Brongniarti, Desh. 

 Sigaretus Lamk. 



clathratus, GmeUn. 

 AmpuUina Lamk. 

 = Natica Adanson. 



sigaretina, Lamk. 



■parisiensis, d'Orb. 



abscondita, Desh. 



Edwardsi, Desh. 



rustica, Desh. 



ponderosa, Desh. 

 Microschara Cossm. 

 = Sigaretus Lamk. 



citharella, Lamk. 



disjuncta, de R. et M. Ch. 



cliona, de R. et M. Ch. 

 Xenophora Von Valden. 



cumulans, Brong. 



patellata, Desh. 

 Capulus Montf. 



= Parmophorus, Blainv. 



dilatatus, Desh. 

 Capulus Montf. 

 = Pileopsis Lamk. 



sqiiamceformis, Montf. 

 Calyptraea Lamk. 



aperta, Sol. 



= trochiformis, Lamk. 

 Hipponyx Def. 



*cornucopice, Lamk. 



dilatatus, Lamk. 



*elegans, Desh. 



pateïloides, Desh. 



=: Heberti, Desh. 

 Cyclostoma Drap. 



mummia, Lamk. 

 Assiminea Leack, 

 = Bithinia Gray. 



contracta, Cossm. 



goniophora, Morlet. 

 Valvata MuUer. 



Trigeri, Desh. 

 Paludina Lamk. 



inaspecta, Desh. 

 Hydrobia Hartm. 

 = Bithinia Gray. 



*subulata, Desh. 



Chedevillei, Mori. 



tuba, Desh. 



= Marceauxiana, Desh. 

 Bithinella Moch. Tend. 

 = Bithinia Gray. 



pulchra, Desh. 

 Stenotliyra Ben son. 

 =r Bithinia Gray. 



mediana, Desh. 



cuneata, Cossm. 

 Nystia ïourn. 

 =. Bithinia Gray. 



microstoma, Desh. 

 Rissoia Flemming. 

 = Rissoa Freminv. 



nana, Lamk. 



Barreti, Mo ri. 

 Pseudotaphrus Cossm. 

 = Rissoa Freminv. 



buccinaljs, Lamk. 



cinctus, Desh. 

 Rissoina D'Orb. 



Pcaincourti, Cossm. 



cochlearella, Lamk. 



fallax, Desh. 

 Chevallieria Cossm. 



mummiola, Cossm. 

 Solarium Lamk. 



patulum, Lamk. 



'canaliculatum, Lamk. 

 Discohelix Dunker. 



plicatella, Cossm. 

 Homalaxis Desh. 

 = Bifrontia Desh. 



marginata, Desh. 



Littorina Peruss. 



levata. Desh. 



Bernayi Cossm. 

 Risella Gray. 

 = Trochus Lamk. 



minuta, Desh. 

 Lacuna Turton. 



Langlassei, de Raine. 



Loveni, Bayan. 



= solidula, Desh. 



Bouryi, Cossm. 

 Dissochilus Cossm. 



conicus, Cossm. 

 Faunus Montfort. 

 = Cerithium Adanson. 



*clavosus, Lamk. 

 Bayania M. Ch. 



lactea, Lamk. 



= dolosa, Desh. 



'delibata, Desh. 



= frumentum, Desh. 



substriata, Desh. 



hordacea, Lamk. 



*= Bithinia, striatula, Desh. 



varians, Desh. 

 Turritella Lamk. 



sulcifera, Desh. 



*granulosa, Desh. 



*monilifera, Desh. 



interposita, Desh. 



copiosa, Desh. 

 Mesalia Gray. 



*ineerta, Desh. 



*Heberti, Desh. 



= Raineourti, Desh. 



*sûlida, Desh. 

 Mathiidia Saint-Père. 



= scalaria, Lamk. 



costellata, Desh. 



Bezançoni, de Boury. 

 Tuba Lea. 

 = Littorina Ferussae. 



sulcata, Pilk. 

 Verinctus Adanson. 

 = Serpulorbis Sassi. 



*cancellatus. Desh. 



clathratus, Desh. 



semipedalis, Desh. 

 Tenagodes Guettard. 

 = Siliquaria Brug. 



*multistriatus, Def. 



*mitis, Desh. 

 Cerithioderma Conrad. 

 =2 Mesostoma Desli. 



angulatum, Desh. 

 Planaxis Lamk. 



aulacophorus, Cossm. 



demidatus, Cossm. 

 Cerithium Adanson. 



*denticulatum, Lamk. 



Brochii, Desh. 



tuberculosum, Lamk. 



mutabile, Lamk. 



*Picteti, Desh. 



*tiara, Lamk. 



*tiarella, Desh. 



pequistriatum, Desh. 



