6 ARKIV FÖR ZOOLOGI. BAND 9. NIO 6. 



postglacial change in the physical circumstances, causes an 

 extension of the Eupagurus Bernhardus in Behring Sea and 

 North Atlantic. In the separating regions the species now 

 can not exist. Ortman therefore assumes, that there was 

 across the Atlantic a tertiary bridge, which E. Bernhardus 

 has followed. It is remarkable, that the specimens from 

 Behring Sea resemble the European specimens more than 

 those of the West Atlantic {E. acadianus Benedict). 



Eupagurus Middendorffli Brandt. 

 H a b i t a t. 



Behring Island, littoral region 2 sps. Vega exp. ^^s 1879. 

 » » several sps. » ^''"^V» 1879. 



» 9 — ^19 m.; härd bottom with clay 1 sp. 



Vega exp. ^^-^Vö 1879. 



Eupagurus splendescens Owen. 

 Habitat. 



Port Glarence 7 — 11 m.; stony bottom with algse 1 sp. 

 (The length of the carapace 33 mm., the length of the hand 

 of the right cheliped 30 mm.) Vega exp. 22-25^^ 1879. 



Behring Island 117 m.; sand mixed with clay. Vega exp. 

 1 sp. -Vs 1879. 



Behring Sea 32 m.; clay 1 sp. ^7; 1879. 



Eupagurus pubesceus Kröyer. 

 Habi tat. 



Lat. 66° 58' N. Long. 171° 35' W. 38 m.; sand mixed 

 with clay; several sps. Vega exp. ^Vt 1879. 



Lat. 65° 14' N. Long. 168° 36 W. 52 m.; stone; 2 sps. 

 Vega exp. ^7/^ 1879. 



Lat. 62° 39' N. Long. 177° 6' W. 99 m.; clay; 5 sps. 

 Vega exp. Vs 1879. 



Behring Island littoral region; 1 sp. Vega exp, ^^/s 1879. 



Behring Island 135 m.; sand mixed with clay; 5 sps. 

 Vega exp. ^Vs 1879. 



