U. S. NATIONAL MUSEUM 



BULLETIN 192 PLATE 1 



1, Chondropoma (Chondropomoriis) hemiotum (Pfeiffer) ; 2, C. (C.) simplex (Pfeiffer); 3, C. 

 (Wetmorepoma) wetmorei Bartsch; 4, C. (Chondropomorns) olssoni Pilsbry; 5, C. (C) 

 vwroHcnse, new species; 6, C. (C.) pilsbryi pilsbryi, new subspecies; 7, C. (C) p. 

 nonuni, new subspecies; 8, C. (C.) salleanum cookei, new subspecies; 9, C. (C) J. sallea- 

 nmn (Pfeiffer); 10, C. (C.) litturaUim (Pfeiffer). 



