OF CONCHOLOGY. 67 



M. FOSSICULIFERA, Orb. — Rio Panana, at Iribucua. 



Monocondylcea fossiculifera, Orb. — Mag. ZooL, p. 38, No. 6. 



1835. 

 3Ionocondyl(Ba fossiculifera, Orb. — Yoy. Am. Merid., p. 614, 

 pi. 80, fig. 5-7. 

 M. Tamsiana, Danker. — Rivers in Mountain Valleys. Vene- 

 zuela. 

 Monocondylcea Tamsiana, Dunker. — Malak. Blatt, p. 226. 

 1858. 

 M. Franciscana, Moricand. — Brazil, 



Monocondylcea Franciscana^ Moric. — Jour. Nat. Hist. Soc, 

 Geneva, vol. 8, pi. 3, f. 14. 



Oceanica 



M. VoNDEMBUSCHiANA, Lea. — Java. 



MonocondyJrea Yondemhuschiana, Lea. — Trans. Am. Philos. 



Soc, vol. 8, pi. 18, fig. 39. 1840. 

 3Iargaritana ZoUingeri, Mousson. — Zeits. fur Malak., p. 185. 



1849. 

 Margaritana crispata, Mousson. — Zeits. fur Malak., p. 185. 



1849. 

 Margaritana fragilis, Mousson. — Zeits. far, Malak, p. 185. 

 1849. 

 M. PLANULATA, Lea. — Java. 



Monocondyloea planulata, Lea. — Pro. Acad. Nat. Sci., Phila*, 



p. 187. 1859. 

 Monocondylo&a planulata, Lea. — " Obs." vol. 7, p. 80, pi. 42, 

 fig. 142. 



Europe. 



M. BoNELLTi, Fer. — France. Lake Gonda, Italy. 



Alasmadonta Bonellii, Fer. — Rossm., p. 24, pi. 9, fig. 134. 

 Alasmadonta depressa, Villa. — Cat. Moll. Lombardia. 

 Alasmadonta compressa, Villa. — Cat. Moll. Lombardia. 

 U7no depressa, Pfr.— Pfeifi"., p. 32, pi. 8, fig. 3-4. 

 Uhio compressa, Menke. — Menke, Synop., p. 106. 1830, 

 Unio Bonellii^ Menke. 



Doubtful Species. 



M. ViGNONANA, Bernardi. — Upper Gaboon, Africa. 



Margaritana Vigyionana^ Bern. — Journal de Concliyliologie, 

 vol. 3., 2d series, p. 302, pi. 10, fig, 1. 

 M. Pfeifferiana, Bernardi. — Upper Gaboon, Africa. 



Margaritana Pfeifferiana^ Bern. — Journal de Concliyliologie. 

 vol. 4, 2d series, p. 331, pi. 12, fig, 1, 2. 

 M. GLAUCA ? Gould. — (Petit's Cat,) Oceanica. 



Anodonta glauca, Gould. — Proc. Bost, Soc. Nat. Hist., vol. 3, 

 p. 293. Nov.; 1850.— Peru. 



