138 



som tidligere nævnt, blot kjendte 4 udvoxede Individer, der 

 alle vare erholdte ved Rysterne af Grønland i Aarene 

 mellem 1823 og 1841, og som ere opbevarede i Musæet 

 i Kjøbenhavn. 



Nordhavs-Exjjeditionens nye Individer optoges fra be- 

 tydeligt Dyb (mellem 600 og 700 Favne), og fra det iskolde 

 Vand. 



Hertil kommer et Antal Ungdomsformer (Motella ar- 

 geniata, Reinh.), der, efter hvad ovenfor er udviklet. med 

 høj Grad af Sandsynligbed tilhøre denne Art, og som lige- 

 ledes ere erholdte ved Grønland i Aarene 1830 — 1840. og 

 hvoraf de fleste opbevares i Musæet i Kjøbenhavn, enkelte 

 i Musæerne i Berlin oe Wien. 



27. Onos septemtrionalis, (Coll.) 1874. 



Pl. IV, Fig. 35— 3<i. 



Motella septemtrionalis, Coll. Ann. Mag. Nat. Hist. Ser. 4, vol. 15, p. 

 82, Nov. 1874 (1874). 



Diagn. 3 Skjægtraade (2 paa Naseborene, 1 paa 

 Hagen), samt en Række af 8 kortere, tildels rudimentære 

 Traade langs Overtaken. Øjnene forholdsvis smaa, imlehol- 

 des (hos ældre Individer) 2 Gange i Snudens Længde. 

 Muml spalten strækker sig bagover langt bagen/or Øjnene. 

 Tænderne temmelig smaa. of ulige Størrelse. Hovedet inde- 

 holdes ubetydeligt over 4 Gange i Tofallængden. Iste Straale 

 i Iste Dorsal kort, omtrent lig Smulens Længde. Anns lig- 

 ger midt mellem Snudespidsen og sidste AnaMraale. Side- 

 linjen synlig, med omtrent 20 store Porer. Farven ensartet 

 graabrun. Tofallængden (hos det største undersøgte Individ) 

 173 '""". 



M. B. 7. 2 D. 49—52; A. 41—43; P. 15—16: 

 V. 7; C. 28—30. 



Localit. fra Nordh. Exped. Røst, ved Indløbet til 

 Lofoten (Norge). 



Bemærkninger til Synonymien. 0. septemtrionalis. 

 der opstilledes i 1874 efter 2 Exemplarer fra Norges Vest- 

 kyst (det største med en Totallængde af omtr. 6 1 /» Tomme 



Beeren Eiland, 4 full-grown specimens only are known to 

 exist of this species. w T hich. as previously stated, were all 

 obtained off the coast of Greenland; they are preserved 

 in the Zoological Museum at Copenhagen. 



The individuals last obtained were taken at a con- 

 siderable depth (6 — 700 fathoms), and in water of the 

 temperature of ice. 



There occur besides a number of forms in the earlier 

 stages of growth (Motella argentata, Reinh.). which, as ex- 

 plained above, may be referred with a high degree of pro- 

 bability to the species in question ; the specimens of these, 

 too. were taken on the coast of Greenland (1830 — 1840), 

 and are most of them preserved in the Copenhagen Mu- 

 seum, some in the Museums of Berlin and Vienna. 



27. Onos septemtrionalis, (Coll.) 1874. 



PI. IV, fig. 35—36. 



Motella septemtrionalis, Coll. Ann. Mag. Nat. Hist. Ser. 4, vol. 15, p. 

 82, Nov. 1874 (1874). 



Diagnosis. — Three barbels (2 at the nostrils. 1 on the 

 tin nj. and a rmr of slimier, in part rudimentary barbels 

 along the upper lip. Eyes comparatively small, their dia- 

 meter (iu mature individuals) half the length of flu- snout. 

 The angle of the mouth extending backwards far beyond the 

 eyes. Teeth [rather small, of unequal size. Tlie head is 

 contained a'" little more than 4 times in the total length. 

 First rug in first dorsal short, about equal to tin- length of 

 the snout. The vent placed midway between the point of 

 the snout and the last anal ray. Lateral line obvious, com- 

 posed of about 20 large pores. Colour a uniform greyish- 

 brown. Total length (in the largest individual examined) 

 173 mm . 



M. B. 7. 2 D. 49—52; A. 41—43; P. 15-16; 

 Y. 7; C. 28—30. 



Locality (North Atl. Exped.): 

 Lofoten (Norway). 



— Røst. Inlet to 



Remarks on the Synonymy. — 0. septemtrionalis, 

 described in 1874, from 2 examples taken on the west coast 

 of Norway (length of the largest about 6^2 inches, or 



