CRUSTACEA MALACOSTRACA. 85 



It was also taken by the "Thor" in 1903 and 1904 at the following stations: 

 West of Iceland: 65° 20' N. L., 27° i2'/V W. L., Yonng-fish trawl with Siom. wire out (actual depth 720 ni.). 



— - — 65° 00' — 28° 10' — , — — — 1000 m. — ( — — 1240 m.). 

 South of Iceland: 62" 10' N. L., 19° 36' W. L., (depth 1900— 2150m.). 



— - — 61° 34' — 19" 05' — < — — — 1800 m. — (actual depth 2160 m.). 



— - — 61° 30' — 17° 08' — , — — — 1800 m. 



South-West of the Faeroes: 6i° 15'N. L., 9''35'W. L.; (depth 900 m.). 



Distribution. The .species was founded in 1905 on specimens taken off the west coast of 

 Ireland. It is mentioned above (footnote p. 84) that Thysanopoda microphthalma Ortm. (nee G. O. Sars) 

 from the Irminger Sea at 60° N. L. is probably the young of this .specie-s. It was taken by the "Thor" 

 in 1905 at three places: far to the soutli-west of the Faeroes, west of the Hebrides and south-west of 

 Ireland, each time in the young-fish trawl with respectively 1200, 1500 and 1000 meters wire out. The 

 Prince of Monaco has taken several specimens at two stations to the west of France, the most southerly 

 being at 46'/.,° N. L.; the apparatus was sunk to 1490 and 3000 meters. It was never taken on any 

 of the numerous occasions, when the vertical net was used from 100 fm. to the surface or the young- 

 fish trawl in similar small depths within the area mentioned under occurrence and distribution. To 

 judge from the "Thor's" results it is clearly not rare in intermediate layers in depths from about 200 

 down to 400 or 450 fm. 



Remark.s. In the synonymy list it will be seen, that (in April 1905) I first gave a preliminary 

 description of this species under an erroneous determination, but that this error was corrected later 

 (in July), and at the latter place I then gave a detailed description of adult and half-grown specimens, 

 and also indicated the differences between it and the nearly related T. distiiigueiida H. J. H. An 

 elaborate description with fine figures was published in 1906 by Holt & Tattersall. TJie largest speci- 

 men comes from St. 83 "Ingolf and measures 43 mm. 



2. Meganyctiphanes norvegica M. Sars. 



1857. Thysanopoda norvegica M. Sars, Forh. Skand. Naturf. syvende Mode i Christiania 1856, p. 169. 

 1886. Nyctiphanes — Koelbel, Die oesterr. Polarst. Jan Mayen, p. 48, Taf. Ill, Fig. 7 — 10. 



1905. Meganyctiphanes norvegica Holt & Tattersall, Rep. Sea and Inland Fisheries of Ireland, 1902 — 1903, 



Part II, No. IV, p. 105 and 135, PI. XVI. 



Occurrence. The "Ingolf" took this species at numerous stations, most times in the trawl. 



West of Iceland: St. 12: 64°38'N. L., 32°37'W. L.; i sjiec. 



— - — - 9: 64° 18' — 27° 00' — 3 — 



North of East Iceland: St. 126: 67° 19' N. L., i5°52'W. L.; i .si^ec. 



South of Jan ■\Iayen: - 116: 70^05' — 8° 26' — i — 



— - — - 112: 67=57' — 6° 44' — 2 — 



— - — - in: 67° 14' — 8° 48' — I — 

 North-East of Iceland: - 120: 67° 29' — 11° 32' — 3 — 

 East of Iceland: St. loi: 66° 23' N. L., i2°05'W. L.; 5 spec. 



