504 



к. Stephensen. 



in connection witli those previously known will be made at the end 

 of this work for the Malacostraca and Pycnogonida; but it may be 

 mentioned here, that some of the species have been taken in quite 

 shallow depths, whilst hitherto they have been known mainly from 

 much deeper water. This applies especially to some Amphipoda, 

 e. g. Orchomene serratus, Monoculodes tuberculatus, Syrrhoe crenu- 

 lata and Halice abyssi. Orchomene serratus is stated by Stebbing 

 (Tierreich) to live at 56 — 188 m.; the Danmark Expedition has taken 

 it at 10 — 15 fm. Monoculodes tuberculatus has been taken at 5 — 10 

 fm.; H. J. Hansen (1895) gives from Hekla Harbour "a number of 

 specimens, some of which from 5 — 12 fm.", but elsewhere the depth 

 seems to be considerably greater: 60 — 70 fm. (H. J. Hansen 1887), 

 50 — 100 fm. (Sars: Account). Syrrhoe crenulata has been taken at 

 5—10 fm., thus the same depth as earlier given for its localities at 

 East Greenland (5—10 fm. Buchholz, 5—9 fm. H. J. Hansen 1895), 

 whereas in Norway it has been found at (20) 80 — 100 fm. (Sars: 

 Account). — Halice abyssi was taken by the Danmark Expedition 

 at such different depths as 10 — 20 fm. and 100 — 125 fm. ; it is given 

 from 753 m., —1.0° C, and 2030 m., —1.3° С (Sars: Norwegian 

 North-Atlantic Expedition) and from Norway at 100—400 fm. 

 (Sars: Account). 



The species dealt with in the present work are the following: 



Decapoda : 1. Sabinea septemcarinata Sab. 



2. Sclerocrangon ferox G. O. Sars. 



3. — boreas Phipps. 



4. Nectocrangon lar Owen. 



5. Spirontocaris Gaimardii H. M. Edw. 



6. — spinus Sow. 



? 7. — Lilljeborgii Danielssen. 



8. — turgida Kr. 



9. — polaris Sab. 



10. — groenlandica Fabr. 



Mysidacea : 11. Erythrops abyssorum G. O. Sars. 



12. Boreomysis nobilis G. O. Sars. 



13. Mysis oculata O. Fabr. 

 Amphipoda: 14. Euthemisto libellula Mandt. 



15. Socarnes bidenticulatus Bate. 



16. — Vahlii Kr. 



17. Orchomene serratus Boeck. 



18. Orchomenella groenlandica H. J. H. 



19. Eurytenes gryllus Mandt. 



20. Anonyx nugax Phipps. 



