The Journal of Conchology, Voi- 13. 



Platk 2. 



Fig. 1. 



Photo, by P. T. Deakiii. 



Fig. I. Pseudanodonta rothomagensis Loc. Natural size. 



Fig. 2. P. rothomagensis shewing nodulous umbones. 



Fig. 3. P. rothomagensis shewing wide gape of lower anterior margin. 



