﻿CRI'STACl'.A MAI.ACOSTRACA. 85 



It was also taken l)y tlie "Thor" in 1903 ami 190.1 at the following stations: 

 West of Iceland: 65' 20' N. L., 27' i2'/2' W. L., Vonng-fish Irawl with Nio ni. wire ont (actnal depth 720 ni.). 



— - — 65° 00' — 28° 10' — , — — — 1000 ni. — ( — — 1240111.). 

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



— - — 61° 34' — i9''o5' — , — — — i(Soo in. — (actual de])th 2 i6cj 111.1. 



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



South-West of the Ftcroes: 61° 15'N. L., 9"35'W. L.; (depth 9cx)iii.). 



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

 Ireland. It is mentioned above (footnote p. 84) that Tliysaiiopoda )iiicrophtlinlina Ortm. (nee (i. C). Sars) 

 from the Iniiinger Sea at 60° N. L. is probably the young of this species. It was taken by the "Tlior" 

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

 Ireland, each time in the young-fish trawl with respecti\'cly 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' 4° N. L.; the apparatus was sunk to 1490 and 3000 meters. It was never taken on any 

 of the numerous occasions, when the \-ertical 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 Julv), and at the latter place I then gave a detailed description of adult and half-grown specimen.s, 

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

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

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



2. Meganyctiphanes norvegica M. vSars. 



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

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



! 1905. Meganyctiphanes norvegica Holt & Tattersall, Rep. Sea and Inlaiul I'isheries of Ireland, 1902— 1903, 



Part II, No. IV, p. 105 and 135, PI. X\'I. 

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

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



— - ^ - 9: 64" 1 8' — 27° 00' — 3 — 



North of p;ast Iceland: St. 126: 67" 19' N. L., 15' 52'W. L.; 1 spec. 

 South of Jan Mayeii: - 116: 70° 05' — 8' 26' — i — 



— - - - 112:67^57' - 6' 44' - 2 - 



— - _ - III: 67° 14' — 8^48' — I — 

 North-Kast of Iceland: - 120: 67" 29' — ii"32' — 3 — 

 East of Iceland: St. loi: 6(y' 23' N. L., 12' 05'W. L.; 5 spec. 



