Report on the Malacostraca, Pycnogonida and some Entomostraca. 577 



Erichthonius megalops 65°1Г N., 53°33' W., 50 fm., Caprella microtuber- 

 culata, Aeginella spinosa, Arcturus Baffini and Nymphon serratum 65" 

 35' N., 5Г50' W., 80 fm. and Colossendeis proboscidea 65°27' N., 54°45' W., 

 67 fm.), thus close at least to the arctic and boreal transition-region. 

 Other species are found much further away from the boundary: 

 Stegocephalus inflatus in Arsuk Fjord (ca. 61° N., West Greenland), 

 Ischyrocerus megacheir at Newfoundland and Astacilla granulata and 

 Colossendeis angusta at New England. Parapleustes latipes (p. 571) has 

 a distribution, which seems to me quite inexplicable. 



2. The Atlantic (boreal) deep-water fauna. 



This group embraces the species which are distributed in the 

 deep Atlantic and have their northern boundary at the ridge Shet- 

 land — Færoes — Iceland — Greenland — Baffin Land. Some 

 however go with the warm water along the Norwegian coast to 

 Finmarken, Bear Island or Spitzbergen. A few are also found in 

 the Pacific. 



The species are the following: 



Neolithodes Grimaldii. 

 Paralomis spectabilis. 



— Bouvieri. 



Munida tenuimana. 



Anthelura abyssorum. 

 Apseudes gracilis. 

 Alaotanais (Neotanais) hastiger 

 Sphyrapus malleolus. 



Galacantha rostrata. 

 Munidopsis Antonii. 



— curvirostra. 



— similis. 

 Polycheles nanus. 

 Sabinea hystrix. 

 Pontophilus norvégiens. 

 Glyphocrangon sculptus. 

 Spirontocaris Lilljeborgii. 

 Bythocaris gracilis. 

 Pandalus borealis. 



— propinquus. 



? Epimeria loricata. 

 Nicippe tumida. 

 Cleonardo microdactylus. 



Ingolfiella abyssi. 

 Leucon longicostris. 



— serratus. 

 Diastylis armata. 

 Cordylochele longicoUis. 

 Pallene acus. 



— hastata. 

 Nymphon Hoekii. 



— groenlandicum. 



— macrum. 



? — brevitarse. 



? Chaetonymphon tenellum. 

 Paranymphon spinosum. 

 Colossendeis colossea. 



— macerrima. 



Neolithodes Grimaldii has been taken in Davis Strait, S. W. of 

 Iceland and at E. America N. of 40^ N., 410—1230 fm., З.з'^— 3.4^ С. 



Paralomis spectabilis has been found 3 times between S. Green- 

 land and Iceland, and one S. of Iceland, 735—1041 fm.. 1.2"' — 3.1' C. 



