THE KARA SEA 



247 



Gorbunov, through the northern deep part of the Laptev Sea and through 

 the deep Schokalsky and Vilkitsky Straits. Such characteristics forms as 

 Melirmexis arctica, Eurycope hanseni, Gnathia stygia, Halirages quadridentatus, 

 Rhaehotropis lomonossovi, Poliometra prolixa Elipidia glacialis and others 



Fig. 106. Examples of the distribution in the Kara Sea of forms of 

 different origin — lower Arctic {Ophiopleura borealis) from the west, 

 bathyal and abyssal from the north and forms brought by the mainland 



discharge. 



have likewise been found in these Straits (Fig. 106). It is not yet known 

 how far this propagation spreads into the Kara Sea. 



Shallow-water sub-Arctic, Arctic-boreal and even boreal forms, unknown 

 in the other part of the Kara Sea and foreign to its endemic fauna, such as 

 Stylaroides hirsuta, Tryphosa hoerringi, Haliragoides inermis, Henricia san- 

 guinolenta, Ophiopholis aculeata, Strongylocentrotus droebachiensis, Psoitis 

 phantapus and others, penetrate through these Straits into the Kara Sea, by a 

 route which so far is unknown. 



