AMERICAN JOURNAL OF CONCHOLOGY. 



Plate n. 



9. 



Fig. 1. lo rhombica, ji7ith. 

 " 2. Pleurocera moniiiferum , Lea. 

 " 3. " pallidum, Lea. 



" 4. Aiujitrema Jayana, Lea. 

 " J). Lithasia obovata, Say, 

 " 6. Strephobasis pumila, Lea. 



Fig. 7. Euryccelon lachryma, Anth. 

 "8. " crassa, Hald. 



" 9. Goniobasis Thorntonii, Lea. 

 " 1(*. " calculoirles, Lea. 



"11. Schizosio7}ia Anthonyi, Reeve. 

 " \'2. Jlnciilosa iceniata, Com: 



