GO 



SOCIÉTÉ ROYALE MAUCOLOGIQUE DE BELGIQUE 



2. W. marginalis, Desh. 



3. — profunda, Desh. 

 10'i. — Parisiella. 



1 . P. ambigua, Cossm. 



103. — Unig. 



1. T.'. (Afoiyan(ana)antiquus,Ch.d'Orb. 

 :?. Unio [s. s*} Michâudi, Desh. 

 3. — truncatosus, Michaud. 

 •1. — Wateleti, Desh. 



104. — NuCULA. 



1. N. subovata, d'Orb. 



2. — bisulcata, Sow. 



3. — Bronni, Desh. 



4. — parisiensis, Desh. 



5. — mixta, Desh. 



6. — terminalis, Desh. 



7. — Cossmanni, E. Vinc. 



8. — similis, Sow. 



9. — fragilis, Desh. 



10. — Woodi, Cossm. 



11. — capillacea, Desh. 



12. — minor, Desh. 



108. — NUCCLANA. 



