South American Naiades : a contribution to the knowledge of the freshwater mussels of South America . e left gills magnified to twice natural size, the inner gill to the left, the outer gill to the right. Fig. 1. Diplodon imitator Ortmann, from Rio Vaccahy-mirim, Santa Maria, RioGrande do Sul, Brazil. Carn. Mus. Cat. No. 6L9248. Fig. la. Gills of male (No. 29) (Shell of this specimen figured on Plate XXXIV, fig. 5). Fig. lb. Gills of female (No. 32). Fig. 2. Diplodon simillimus Ortmann, from Rio Nhundiaquara, Morretes, Parana,Brazil. Carn. Mus. Cat. No. 6L9250. Fig. 2a. Gills of male (No. 7).
South American Naiades : a contribution to the knowledge of the freshwater mussels of South America . e left gills magnified to twice natural size, the inner gill to the left, the outer gill to the right. Fig. 1. Diplodon imitator Ortmann, from Rio Vaccahy-mirim, Santa Maria, RioGrande do Sul, Brazil. Carn. Mus. Cat. No. 6L9248. Fig. la. Gills of male (No. 29) (Shell of this specimen figured on Plate XXXIV, fig. 5). Fig. lb. Gills of female (No. 32). Fig. 2. Diplodon simillimus Ortmann, from Rio Nhundiaquara, Morretes, Parana,Brazil. Carn. Mus. Cat. No. 6L9250. Fig. 2a. Gills of male (No. 7). Fig. 26. Gills of female (No. 23). Fig. 3. Diplodon vicarius Ortmann, from creek (Rio Ribeira drainage), AquaQuente, near Iporanga, Sao Paulo, Brazil. Carn. Mus. Cat. No. 6L925L Gills offemale (No. 14). Pig. 4. Diplodon decipiens Ortmann, from creek (tributary to Rio Iguassii),Serrinha, Parana, Brazil. Carn. Mus. Cat. No. Fig. 4a. Gills of male (No. 2). Fig. 46. Gills of female (No. 6) (Shell of this specimen figured on Plate XXXVI, fig. 4). Memoirs Carnegie Museum, Vol. VIII. Plate Anatomy ok DiiLonoN. 666 MEMOIRS OF THE CARNEGIE MUSEUM. EXPLANATION OF PLATE XLVI. Gills of Diplodon paulista (Von Ihering), Diplodon piceus (Lea), DiplodonhildjE Ortmann, Diplodon burroughianus (Lea), Diplodon mogymirimOrtmann, Diplodon berth^e Ortmann, and Diplodon enno Ortmann. All figures represent left gills magnified to twice natural size, the inner gill to the left, the outer gill to the right. Fig. 1. Diplodon paulista (Von Ihering), from Rio Tiete, Mogy das Cruzes, SaoPaulo, Brazil. Cam. Mus. Cat. No. Gills of female (No. 4). Fig. 2. Diplodon piceus (Lea), from Rio Uruguay, Uruguayana, Rio Grande doSul, Brazil. Carn. Mus. Cat. No. 6L5S62. Gills of female (No. 7). Fig. 3. Diplodon hildce Ortmann, from Rio Jacuhy, Cachoeira, Rio Grande doSul, Brazil. Carn. Mus. Cat. No. Gills of female (No. 15) (Shell of thisspecimen figured on Plate XXXVII, fig. 2). Fig. 4.
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