262 



BULLETIN 82, UNITED STATES NATIONAL MUSEUM, 



Fig. 287. 



Fig. 2S6. 



Fig. 288. 



Fig. 289. 



Fig. 290. 



Fig. 2<j1. 



M^ '''^^ "^ '"'^ CENTB0D0R3AL OF A .SPECIMEN OF PSATnYBOMETRA FRAGILIS FBOM NORTHERN JaPVN. 



«., ENTRAL VIEW OF TUE CENTRODORSAL OF A SPECIMEN OF LePTOMETRA CELTICA (AFTER P. H. CARPENTER). 2S.S, \EN- 

 TRAL VIEW OF THE CENTRODOBSAL OF A SPECIMEN OF ERYTIIROMETRA RUBER FROM SOUTHWESTERN JaI'AN. 289. VENTRAL 

 VIEW OF THE CENIROUORSALOFASPECTMEN OF PeROMETRA DIOMEDE.E FROM SOUTHERN JAPAN. 290. VENTRAL VIEW OF 

 THE CENTRODOR3AL OF A SPECIMEN OF UaTUROMETRA I.ENTAIA FROM SOUTHERN MASSACHUSETTS. 291, VENTRAL VIEW OF 

 TUE CENTBODOR3AL OF A SPECIMEN OF TBICHOMETBA ASPERA FROM GEORGIA 



