33 



Ventrikélen indeholdt lios de uudersøgte Individer fol- 

 gende: Hos 3 Ind vider fra en Dybde af 191 Favne (8tat. 

 290). livor Bunden bestod af saudholdigt Ler, indeholdt Ven- 

 trikélen hos det ene Anneliden Noiomastus latericeus, M. Sårs; 

 hos det andet ligeledes en Anuelide, Chloraema pelJuddmn. 

 M. Sårs; det tredie havde Ventrikélen fyldt med smaa 

 Mollusker, som (ifølge Bestemmelse af Dr. Friele) vare Vélu- 

 tina undata. Brown, og Yoldia intermedia, M. Sårs. Et 

 Individ fra Stat. 275 (fra' 147 Favnes Dyh) havde Ventri- 

 kélen fyldt med forskjellige smaa Annelider, hvoraf kunde 

 kjendes en Clymene og en liden Polynoe. der dog ikke lode 

 sig nærmere bestemme. 



Samtlige disse Dyr ere Bunddyr. og Arten lever 

 utvivlsomt, ligesom de øvrige cottoide Former, umiddelbart 

 paa og ved Bunden, hvad der ogsaa fremgaar af dens Le- 

 gemsbygning. 



Udbredelse. Centrid. nncinatus er en arctisk Art, 

 der saudsynligvis optræder paa den noget grundere Hav- 

 bund YHin de fleste Steder mellem Grønland, Spitsbergen, 

 Novaja Zemlja og Norge. Oprindelig blev Arten beskreven 

 af Reinh. sen. i 1833 — 34 efter Exemplarer fra Gi'ønlands 

 Sydkyst (Nennortalik i Julianehaabs Distrikt). Senere er 

 den fra og til nedsendt til Musæet i Kjobenhavn fra Gron- 

 land, m*en synes, ifølge Dr. Liitkeu. ikke at forekonnne 

 talrigt her. At den ikke indsamledes under den engelske 

 Nordpol-Exi)edition i 1875 — 76 i de nordgrønlandske Far- 

 vande mellem 78" og 83", synes forklarligt, uaar man be- 

 tragter dens forholdsvis sydlige Udbredelse i Europas arctiske 

 Egne. Den er nemhg hidtil ikke fundet under jnogen af 

 de talrige Expeditioner omkring Spitsbergen ; det nordligste 

 Punkt, hvor den hidtil vides iagttagen. er paa den ovenfor 

 nævnte Stat. 326, under 75° 31', eller omtr. midtveis mel- 

 lem Beereu Eiland og Sj)itsbergen ; imidlertid tor det med 

 Sikkerhed forudsættes. at den naar op til de sydligste Dele 

 af denne Øgruppe. Mellem Spitsbergen og Norges Kyster 

 synes den at være jevnt udbredt over Havbunden, hvor 

 denne hæver sig op til et Par Hundrede Favnes Dybde, 

 hvorimod den ikke erholdtes paa de vestenfor liggende 

 større Dyb; mod Øst gaar den idetmindste til Novaja 

 Zemlja, hvor et Par Individer erlioldtes ved Sælhundbug- 

 ten. under Heuglins Expedition i 1871. hvilke afgaves til 

 Universitetsmusæet i Christiania af Expeditionens Deltager, 

 Cand. Aagaard. 



Ved Jan Mayen erholdtes intet Individ under Nord- 

 havs-Expeditionens (vistnok ikke særdeles talrige) Skrab- 

 ninger omkring denne i 1877; heller ikke er den hidtil 

 fundet ved Island. 



Langs Norges Kyster optræder den jian forskjellige 

 Punkter fra Varangerfjorden og Nordkap af, og ned til Sta- 

 vangerfjorden, som det synes, ikke særdeles sparsomt. Den 

 sidstnævnte Localitet (59") er det sydligste Punkt, hvor 

 Arten hidtil er observeret, men den vil saudsynligvis ogsaa 

 vise sig at bebo Bankerne udenfor Orknøerne og Shet- 



Den norske Nordhavsexpeditioii. Collett : Piske. 



The ventricles of the specimens examined were on 

 dissection found to contain marine animals of the following 

 species: — Of 3 individuals taken at a depth of 191 fath- 

 oms (Station 290), bottom argillaceous clay, I found a 

 Notomastns latericeus, M. Sars. in the stomach of one ; in 

 that of the second, an examjjle of another Annelid. CJdo- 

 ræma pellucidttm, M. Sars ; that of the third was full of 

 small mollusks, belonging (as determined by Dr. Friele) 

 to the species Vehdina widata, Brown, and Yohlia inter- 

 media, M. Sars. An individual taken at Station 275 (depth 

 147 fathoms) had its ventricle full of divers small Anne- 

 lids, among which a (Jlymeiie and a small Polynoe admitted 

 of being determined. 



These animals are all of tliem bottom -species, and 

 C. uncinatus, in common with the other Cottoid forms, un- 

 questionably has its habitat either directly on. or very 

 near to. the bottom, a circumstance also explained by the 

 structure of its body. 



Disttibution. — Centr. uncinatus is an Arctic species, 

 occuring. where the bottom is comparatively shallow, in most 

 localities between Greenland, Spitzbergen. Nova Zemlja. 

 and Norway. The species was first described by Reinhardt 

 sen., 1833 — 34. from specimens taken on the south ccast 

 of Greenland (Nennortalik. in tlie district of Julianehaab). 

 More recently it has now and again been sent from Green- 

 land to Copenhagen, but. according to Dr. Liitken. does 

 not seem to be common there. Its not having been 

 taken on the English Polar Expedition (1875—76) off 

 North-Gi'eenland, in lat. between 78" and 83" N., is hardly a 

 matter of surprise, if we consider the comparatively south- 

 ern range of the species in the Arctic regions of Europe. 

 Hitherto no example has been obtained from the shores of 

 Spitzbergen ; the most northerly point at which, uji to the 

 present time, it is known to have been observed, is 

 Station 326. mentioned aljove. in lat. 75" 31' N., or about 

 mid-way between Beeren Eiland and Spitzbergen; we may 

 however safely regard its range as extending to the south- 

 ern part of that group of islands. Between Spitzbergen 

 and the coast of Norway it would appear to be equably 

 distributed over the surface of the bottom in all localities 

 where the depth of the ocean does not exceed a couple of 

 hundred fathoms; furtlier west, at greater depths, it has 

 not been met with. In an easterly direction the species 

 occurs at least as far as Nova Zemlja, where two exam- 

 ples were taken on Heuglin's Expedition in. 1871. in Seal 

 Bay, by Dr. Aagaard. 



Off the coast of Jan Mayen no individual of this spe- 

 cies was obtained on the Expedition when dredging (not 

 very frequently, it is true) round that island, nor has it as 

 yet been observed on the coast of Iceland. 



On the Norwegian coast it occurs in divers localities, 

 from the Varanger Fjord and the North Cape as far south 

 as Stavanger: and apperently not as a rare species. The 

 last-mentioned locality (in lat. 59° N.) is the most south- 

 erly point at which the species has been observed; prob- 

 ablv. however, it will Jie found to inhabit the banks 



m 



