Sluilirs oil riK>riiii' Oslraiods 



271 



Fif,'- XLIV. — ''. fViiifiuln) iiicf-(ilij/,s O. O. Sahs. — 1. Hiijlil vjilvc, scon from lln' side, $; 25.fi X. 2. Shell, seen from 

 below. ?: 19 X. -i. Aiileiioi' ]iait ol' the left valve, seen fmni inside. ?: "fi x. •'•. Fi<>rt valve, seen from the side. (J: 



2'i X. ■'>. Mandible, seen froni inside. J: I'lT X. 



