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Coiicliae riuv. Lister. contin. 



1) Musculi fluviatiles cardine dentato (= Unio.) 



2) Musculi fluviatiles cardine laevi (=Anodonta.) 



3) Pectunculi Huviatiles (= Egeria, Cyclas, 

 Hyria, Anelasmodonta.) 



Coitcliae fluviatiles seu aquae dulcis D'Argenv. 

 1757. Conchyl. p. 325. 



1) univalves. Familiae: Lepas, Limax, Nerita, 

 Trochilus, Turbo, Buccinum, Globosa, Planorbis. 



2) bivalves. Familiae: Chama, Musculus. 

 Concliae fluviatiles Lamck. vid. Conchae Lamck. 

 Coiicltae marinae Gualt. 1742. Ind. tab. 71 — 104. (praec. 



Lang. 1722. *) 

 Quarta pars Testaceorum, ita divisa. 

 Class. L Valvis aequalibus aequilaterae. 



sect. 1. notabiliter umbonatae et recta incurvatae. 

 Genera: Concha subrotunda vulgaris (=Mac- 

 tra spec.) 

 Concha cordiformis aequilatera umbone car- 



dinum diducto (= Isocardia.) 

 Concha cordiformis aequilatera umbone car- 

 dinum unito (= Cardium spec.) 

 sect. 2. mediocriter umbonatae et recta incur- 

 vatae, 

 Genera: Concha crassa. (= Cytherea sp., 

 Pectunculus sp.) 

 Pecten tenuis, (= Pecten sp.) 

 Pectunculus, (= Pecten sp., Plicatula 



spec) 

 Concha pectiniformis aequilatera. (= Cy- 

 therea sp., Corbis.) 

 sect. 3. notabiliter umbonatae et oblique incur- 

 vatae. 

 Genera: Concha subrotunda vulgaris. (= Ar- 

 temis, Venus sp.) 

 Chama aequilatera. (= Venus sp., Tel- 

 lina sp., Cytherea sp.) 



