150 



narie. samt hos de fleste af Individerne en Del Grus og 

 Mudder. 



Hos et af Individerne fra Tanafjord fandtes af Dyre- 



levninger intet aden Perten groenhiuil/rus. Sow., i flere 

 Exemplarer. 



Udbredelse. Da Bloch's Pleuronectes limandoides, 

 efter hvad ovenfor er udviklet. niaa antages blot "at udgjore 

 den sydlige Stamme af Fabricii Pleuronectes platessoides, 

 er Arten fundet fra Spitsbergen og Island ned langs Nord- 

 vest-Europas Kyster til den britiske Canal, fremdeles ved 

 Nord-Americas ( (stkyst fra Grønland af ned til New-England 

 Staterne. 



Ved de scandinaviske Kyster bar den hidtil væsentlig 

 været kjendt fra det noget grundere Vand i Nærheden af 

 Land ; sandsynligvis er den dog udbredt paa passende Dyb- 

 der overalt i de arctiske Have. men har hidtil paa Grund 

 al' mangelfulde Apparater ikke været erholdte i nogeu be- 

 tydelig Dybde, eller i nogen . Afstand fra Land. At den 

 dog her maa forekomme tildels i Mængde. fremgaax deraf. 

 at den baade erholdtes (paa Stai. 323) i omtrent 200 Kilo- 

 metres Afstand fra nærmeste Land. og ved en enkelt Lej- 

 lighed (paa Stat. 326) i et samlet Antal af 15 Individer, 

 store og smaa. fra en Dybde af melleni 200 og 300 

 Favne. 



Gren- GrLvptoceplialris, Gottsche. 

 Wiegm. Arch. f. Natura'. 1 Jahrg. 1835, B. l,p. 156 (1835). 



Legemet højrevendt, glat, særdeles langstrakt, med 

 hort Haleroa. Tpenderné smaa, tætsiddende, mej- 

 seldannede, talrigst paa Blindsiden, og danne, i 

 begge Kjæver en enkelt sluttet Række; Vomérin- og 

 Palatini ænder mangle. Mundaabningen særdeles 

 Hilen: Kjære r ne inni rent lige lange, og naa hos de ud-, 

 voxei/e nrjijie //en nniler jets forreste Hand. Anal- 

 torn i Regelen tilstede. Sidelinien næsten ret. Cau- 

 dalen a/rundet. Skjællene sinna, af idige Størrelse, 

 glatte. Hovedet Hilet, meil en Række Gruber paa 

 Blindsiden; Øjnme iætsiddende. Straaleanialiet be- 

 tydeligt. 



30. Glyptocephalus cynoglossus, (Lin.) 1766. 



Pleuronectes cynoglossus, Lin. Syst. Xat. ed. 12, tom. i. p. 456 ilTiio). 

 Pleuronectes pola, Lacép. Hist. Nat. Poiss. suites a Buffon, tom. 4, p. 



401 (1819) [teste Br. & C le], 



Pleuronectes saxicola, Faber, Tideskr. l'. Naturv. ."' 1!.. p. -21-1 iKbhvn. 



1828); Isis L828, p. sTT (1828). 



frigida, Tor., a PJanaria. and. in most of the individuals, 

 a little gravel or mud. 



In one of the Tana Fjord specimens. Perieu grcen- 

 landieus — several examples — constituted the sole con- 

 tents of the ventricle. 



Distribution. - - From what has been stated above. 

 Bloch's Pleuroneiies limandoides must be regarded as the 

 southern branch of Fabricius' s Pleuronectes platessoides; and 

 the speci.es ranges therefore from Spitsbergen and Iceland 

 along the north-western shores of Europe to the British 

 ('hannel; and in America, from Greenland to the coasts of 

 the New England States. 



On the coasts of Scandinavia, H. platessoides has here- 

 tofore been chiefly taken in comparatively shallow water. 

 a short distance from land ; probably, however, its range 

 extends throughout all parts of the Arctic Ocean, though 

 it. has not as yet. owing to the defective construction of 

 the apparatus employed for capturing it, been met with 

 at any considerable depth, or in the open sea. But that 

 it does occur, and even abundantly, in such localities, may 

 be inferred from its having been taken at Station 323. 

 nearly 200 kilometres from the nearest land; nay. on one 

 occasion (Station 326) as many as 15 individuals, large 

 and small, were obtained at a depth of 200 — 300 fathoms. 



Gren. Grl^-ptocephalixs, Gottsche. 

 Wiegm'. Arch. f. Natur-. 1 Jahr- is:;.".. B. 1, p. l.Mi (1835). 



Body .dextral, smooth, elongated, peduncle of 

 tail short. Teeth small, closely set, incisorial, most 

 numerous on the blind side, forming a continuous 

 cutting' edge on either side: vomerine and palatine 

 teeth wanting. Mouth very small; jaws about equal 

 in length, iii adults scarcely reaching the anterior mar- 

 gin of the eye. Preanal spine as a rule present. 

 Lateral Hue almost straight. Caudal rounded. The 

 smles small, varying in size, smooth. Head small, 

 with a series of foveæ on 'the blind side. Eyes 

 approximate. Fin-rays numerous. 



30. Glyptocephalus cynoglossus. (Lin.) 1766. 



Pleuronectes cynoglossus, Lin. Syst. Nat, ed. 12, tom. 1. p. 4"'ii (1766). 

 Pleuronectes pi,!,,. Lacép. Hist. Xat. Poiss. suites å Buffon, tom. 4. p. 



401 (1819) [teste lir. & Goode]. 

 Pleuronectes saxicola, Faber, Tidsskr. f. Naturv. ."> B.. ]>. 244 (Kbhvn. 



1828); lsis ls28. p. sTT (1828). 



