20 



Aptychus radiatus, Fr 



Turritella multistriata, Reuss . . 

 Turritella acicularis, Keuss . . . 

 Turritella Noeggerathiana, Goldf. . 



Scala, sp 



Scala decorata, Gein 



Natica vulgaris, Reuss 



Natica Genti, Sow 



Turbo decemcostatus, v. Bach. . . 

 Trochus Engelhardti, Gein. . . . 

 Guilfordtia acanthochila, Gein. . . 



Rissoa Reussi, Gein 



Rissoa, sp 



Alvania, sp 



Alvania, sp 



Pleurotomaria linearis, Mant. . . 

 Solarium baculitarum, Gein. . . . 

 Aporrhais megaloptera, Reuss . . 



Aporrhais Reussi, Gein 



Aporrhais coartata, Gein 



Aporrhais stenoptera, Goldf. . . . 

 Aporrhais arachnoides, Mull. . . , 

 Aporrhais subulata, Reuss . . 



Rapa cancellata, Sow 



Fusus (cf. Fleuressianus), D'Orb. 

 Fusus Nereidis, Miinst. . . . 



Fusus? n. sp 



Fusus, sp 



Fusus requienianus, D'Orb. . . 

 Cerithium binodosum, Rom. . . 

 Cerithium fasciatum, Reuss . . 

 Cerithium pseudoclathratum, D'Orb 

 Cerithium provinciale, D'Orb. 

 Cerithium cf. Dupinianum, D'Orb. 



Cerithium sp 



Voluta elongata, D'Orb. . . . 

 Mitra Roemeri, Reuss .... 

 Cylichna cylindracea, Gein. . . 

 (Acteon ovum, Duj. ? ?) . . . 



Acteon, sp 



Acteon doliolum, Mull 



Acteonina lineolata, Reuss. . . 

 Avellana Humboldti, Mull. . . 



Avellana? 



Scaphander cretaceus, Fr. . . . 

 Acmaea depressa, Gein. . . . 

 Patella? inconstans, Gein. . . . 

 Dentalium glabrum, Gein. . . . 

 Dentalium medium, Sow. . . . 



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