49 



Soc. of London (p. 294) givet i Træsnit Afbildningér af 



Yngelen. 



Bemærkninger til Beskrivelsen. Totallængden af 

 det under Expeditionen erholdte Individ var 79"™, bvoraf 

 Hovedets Længde var 25""". De conisk tilspidsede Ben- 

 tuberkler beklæde Legemet saa tæt, at deres Grundlinier 

 paa Siderne af det egentlige Legeme i Regelen berøre hin- 

 andeii: paa Halen ere de alle mindre. Paa de 5 første 

 Straaler af Iste Dorsal sidder paa hver Side hen mod 

 Spidserne en liden, cbagrineret Bentorn. Endvidere er Gran- 

 den at' Pectoraleme paa Ydefsiden beklædt paa samme 

 Maade, som Legemet og Hovedet. 



Straaleantallet var: 1 I). 7: 2 D. 12: A'. 12: P. 23; 

 C. 10. 



Tilstedeværelsen af en Sidelmie synes ikke at være 

 omtalt i noget at' de ovenfor anførte Skritter, og Kroyer 

 nævner udtrykkelig, at den mangler. En Sidelinie er ikke- 

 destomindre tilstede, og Porerne ere overalt tydelige, om 

 end ikke særdeles store 1 . Den udspringer veil Gjællespal- 

 tens øvre Ende. er i Begyndelsen temmelig højtliggende, 

 men bøjer under 2den Dorsal skraat nedad mod Legemets 

 Midtlinie. sum den naar i omtrent l l-i Hovedlængdes Af- 

 stand fra Haleroden. og loher herfra ret ud mod Caudalen. 

 Antallet af Porer er paa den ene Side 13. paa den 

 anden 1-1. 



Udbredelse. I Modsætning til Cydoptertts lumpus 

 synes denne at være en Dybvandsart, der blot forekommer 

 paa 60 — 200 Favnes Dyb (eller derover). Den horer til 

 de Arter Fiske, som • ere fundne længst mod Nord. Fra 

 Grønland, hvor den er talrig. er den. som ovenfor nævnt, 

 allerede kjeiult fra forrige Aarhundrede gjennem Muller 

 og Fabricius, og fandtes sidst i 1ST") af den engelske Nord- 

 pnl-Expedition paa tiere Punkter af. Vest-Grøiiland op til 

 mellem 79 og 80° X. 11 Fremdeles er den. ifølge Faber. 

 funden ved Island (Fische Isl. p. 54. 1829): ved Spitsber- 

 gen er den ligeledes. som det synes, hyppig-, og er her 

 funden af Kroyer allerede i 1838. og senere af alle de 

 etterfølgende Expeditioner i disse Farvande. Den er hidtil 

 ikke fundet ved det europa j iske Continent, men forekommer 

 sandsynligvis ogsaa her paa passende Dybder af Ishavet. 

 Da. som ovenfor nævnt. Oyclopterus orbis fra Beringshavet 

 neppe kan opfattes som en fra Ewmicrotremus spinosus skilt 

 Art. er den saaledes i sin Udbredelse maaske circum- 

 polær. . 



' ' Sandsynligvis er den oftest utydelig hos Individer, der have ligget 

 længr i Spiritus, men vil i Regelen atter vise sis;, om Individet op- 

 blødes en Tid i Vand. 



Den norske Nordl>aVsexpediti«n. Collett: Fiske. 



author figured the fry of the species on wood. (Proc. 

 Zool. Sue. of London, p. 294). 



Descriptive Observations. — The total length of 

 the individual taken on the Expedition was 79"™; length 

 of head 25"™. The cuneiform osseous tubercles are so 

 closely disposed over the body that their liasal lines, in 

 the lateral region, are as a rule contiguous: on the tail, 

 these tubercles are all considerably smaller. The 5 first 

 rays in the first dorsal are furnished on either side towards 

 the point with a small granulated spine. Moreover, the 

 base of the pectorals, exteriorly, is invested with a teg- 

 ument similar to that covering the head and the body. 



Number of tin-rays: — 1 1). 7; 2 1). 12; A. 12; 

 P. 23; C. 10. • 



The occurrence of a lateral line does .not appear to 

 have been observed by any of the naturalists whose works 

 are cited above; nay. Kroyer emphatically declares it to 

 be wanting. A lateral line nevertheless there is. and the 

 pores, though not particularly large, are distinctly percep- 

 tible. 1 It commeuces at the upper extremity of the branch- 

 ial opening, extending from thence nearly straight till 

 a little below the 2nd dorsal, where it suddenly bends down- 

 wards, striking oif obliquely to the mesial line, whichit meets 

 at a point distant about half the length of the head from 

 the origin of. the tail, and then passing straight to "the 

 caudal. Number of pores 13 — 14. 



Distribution. — Unlike Cydopt&rus lumpus, this 

 would appear to he a deep-sea species, occurring at a 

 depth of from '(30 to 200 fathoms (or still deeper), and is- 

 one of the tishes whose range extends furthest north. On 

 the coast of Greenland, where it is common, it was observed 

 as far back as the last century, by Miiller and Fabricius, having 

 been latest met with on the English North Pole, Expedition. 

 1875, in divers localities- on the western shores of Green- 

 land, as far north as 79° and 80°. According to Faber. 

 (Fische Isl. p. 54. 1829) it inhabits the coast of Iceland; 

 off Spitsbergen it is likewise said to be numerous, having 

 been observed in those regions by Kroyer. in 1838. and 

 since then on all subsequent Arctic Expeditions. Up to 

 the present time it has not been met with off the con- 

 tinent ot Europe, but occurs probably here too at the 

 right depth. OyclopterUS orbis, from Bering's Straits, being, 

 as before observed, hardly entitled to rank as a species 

 distinct from E. spinosus. it is perhaps circumpolar in its 

 range. 



1 Probably it is more or less obliterated in specimens preserved 

 for any length of time in spirits, but will again In-come obvious if 

 the skin be sufficiently moistened with water. 



