84 . Lumpenus medius (Remhardt) 



This species is circumpolar, extending south on the asiatic coast to the Sea 

 of Japan . Common m the northern Bering Sea and Chukchi Sea at depths of 30 to 

 98 meters. Found primarily on clay and muddy clay, rarely on sandy clay, at 

 temperatures usually considerably below zero . (see table) . 



Table of water temperatures at stations where Lumpenus medius has been obtained 



in the Bering and Chukchi Seas . 



The form is characteristic of the Anadyr cold spot as a component of the arctic 

 biocenosis, together with Ophiura sarsi, Macoma calcarea and Lye odes palearis 

 arcticus Taranetz and Andriashev . Our examples from Imatra Bay (Koriak Land), 

 Anadyr Gulf and the Chukchi Sea extending to Herald Island . 



85. Lumpenus fabricii (Cuvier & Valenciennes). 



This species is amphiboreal; absent in seas washing the northern coasts of 

 Asia (Kara, Laptev and East Siberian) . In far eastern waters, distributed from 

 Chukchi Sea to Sea of Japan avoiding cold waters, unlike L. medius (Reinhardt). 

 Our examples from the warm part of S. E. Chukchi Sea at depths of 49-57 meters, 

 clay bottom, temperatures .4 to 1.6". 



86. Leptoclinus maculatus diaphanocarus (Schmidt) 



Leptoclinus maculatus Jordan & Evermann, Fish N. Amer. 3, 1898, p. 2433 



(in part, Pacific Ocean) . 

 Plectobranchus diaphanocarus Schmidt, Fish, east seas, 1904, p. 182, 



(East Sakahlin juvenile) . 



There are two examples of Leptoclinus maculatus from the KRASNOARMEIETZ 

 (1933) expedition taken in Anadyr Gulf. 



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