42= 



100 M 



40°^°°^-- 



,\jJ'-"' 



Dulichio tuberculata 

 Dyopedos arcticus. 



- 42' 



100 M 

 200 M 



Dyopedos monocanfho 

 I I 



- 40° 



42" 



40' 



100 M 

 200 M-, 



Ericfhonius rubricomis 

 I l__ 



42' 



40" 



Erioplsa elongata 

 Eusirus cuspidafus 



70° 



68° 



66° 



C'^J'>"' 



100 M. 

 200 M-^ 



• Gammaropsis maculatus 



A Gammarus annulatus 

 I 1 



70° 



68° 



- 40° 



66° 



Figure 7. — Geographic distribution of species of gammaridean Amphipoda on Georges Banli. — Continued. 



16 



