360 Bvlletin Vanderbilt Marme Museum, Vol. VJI 



Subfamily : Bathypolypodinae 



Genus: BATHYPOLYPUS Grimpe 



Bathy poly pus arcticus (Prosch) 



Plate 152 



Type: This is a female specimen, labeled "Gronland M. R. 

 Jorgensen, 27.7, 1840," deposited in the Zoologisk Museum, Copen- 

 hagen. 



Distribution : The bathymetrical occurrence of this species 

 is from shallow water down to a maximum depth of 843 fathoms 

 ( Verrill) . The average depth at which it has been more frequently 

 recorded is about 200 fathoms. All records available tend to show 

 that this is a species of the margin of the continental shelf and 

 upper areas of the continental slope. Geographically it ranges 

 in Arctic waters of north and northwestern Europe eastwards to 

 the Murman coast, not having been found by the several expedi- 

 tions which have explored the Barents Sea, Franz Joseph Land. 

 On the American side, the only record of it west and north of Davis 

 Straits is the one from Point Barrow, Alaska, given by Dr. Wm. 

 H. Dall, which I think is correct. The lack of published record of 

 this species in collections from the American and Alaskan Arctic 

 is due to the deplorable condition existent in the United States 

 Government Cephalopod Collections deposited in the National 

 Museum. In European waters the southernmost records appear 

 to be those from the coasts of southwest Ireland, while along the 

 American continental shelf, the coasts of South Carolina and 

 Georgia have hitherto been considered the southernmost records. 

 The "Alva" specimens, dredged in 100 to 200 fathoms, off Fowey 

 Rocks, Florida, extend the southern range on the American side. 

 For detailed citation of distribution localities, consult Mr. Robson 

 (1929). 



Material examined : A male and a female, the exact label for 

 which reads : Dredged March 29, 1935, station A, Dredged Fowey 

 Rocks, Florida, bearing 289° true, 4.0 miles distant, 200 fathoms. 

 Dredging with Fowey Rocks, bearing 273° true, 2.5 miles distant, 

 100 fathoms. Yacht "Alva." 



Technical description : The male is the larger of the two 

 specimens taken. It measures 95 millimeters over all, while the 



