70° 



68° 



66° 



42<^ 



40° 



100 M- 

 200 M-.^ 



A Platyishnopus sp. A 

 • Pleusymtes glaber 



100 M 

 200 M-^ 



Pleusfes panoplus 



42° 



40° 



42° 



42° 



- 40° 



40°- 



100 M 

 200 M 



Protohaustorius deichmonnae 

 _J \ L 



70° 



68° 



66° 



100 M 

 200 M-. 



Protohaustorius wigleyl 



70° 



68° 



42° 



- 40° 



66° 



Figure 12.— Geographic distribution of species of gammaridean Amphipoda on Georges Bank.— Continued. 



21 



