658 MEMOIRS OF THE CARNEGIE MUSEUM. 



EXPLANATION OF PLATE XLII. 



Shells of Anodontites clessini (Fischer), Anodontites hyrioides Ortmann, 

 Anodontites hasemani Ortmann, and Anodontites iheringi (Clessin). 



All figures natural size. 



Figs. 1 and 2. Anodonlltes clessini (Fischer), from Rio Vaccahy-mirim, Santa 

 Maria, Rio Grande do Sul, Brazil. Carn. Mus. Cat. No. 6L5820 (See also Plate XLI, 

 fig. 4). 



Fig. L Male (No. 12), dorsal view (Same specimen as that figured on PI. XLI, 

 fig. 4). 



Fig. 2a. Female (No. 11), lateral view. 



Fig. 26. Female (No. 11), inner view of right valve. 



Figs. 3-5. Anodontites hyrioides Ortmann, from Rio Tapajos, Santarem, Para, 

 Brazil. Carn. Mus. Cat. No. 61.5829. 



Fig. 3a. Largest specimen (No. (i), lateral view. 



Fig. 36. Largest specimen (No. 6), inner view of right valve. 



Fig. 4a. Half-grown specimen (No. 4), lateral view. 



Fig. 46. Half-grown specimen (No. 4), dorsal view. 



Fig. 5. Young specimen (No. 1), lateral view. 



Figs. 6 and 7. Anodontites hasemani Ortmann, from Rio Paraguay, Santa Rita, 

 Matto Grosso, Brazil. Carn. Mus. Cat. No. G1.5832. 



Fig. 6a. Half-grown male (No. 1), lateral view. 



Fig. 66. Half-grown male (No. 1), inner view of left valve. 



Fig. 7a. Gravid female (No. 3), lateral view. 



Fig. 76. Gravid female (No. 3), dorsal view. 



Fig. 8. Anodontites iheringi (Clessin), from Rio Vaccahy-mirim, Santa Maria, 

 Rio Grande do Sul, Brazil. Carn. Mus. Cat. No. 61.5815 (See also Plate XLIII, fig. 1, 

 and Plate XLIV, fig. 1). 



Fig. 8a. Half-grown male (No. 1), lateral view. 



Fig. 86. Half-grown male (No. 1), dorsal view. 



