150 



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

 Mudder. 



Hos et af Individerne fra TaoQafjord fandtes af Djve- 

 levniuger intet udeu Pecfen groenlandicvs, Sow., i flere 

 Exemplarer.. 



Udbredelse. Da Blocli's Pleuronecfes limandoides, 

 efter hvad ovenfor er udviklet. maa autages blot at udgjore 

 den sydlige Stamme af Fabricii Pleurmiedes plutessoides, 

 er Arten fuudet fra Spitsbergen og Island ned langs Nord- 

 vest-Eui-opas Kyster til den britiske Canal, fremdeles ved 

 Nord-Americas Østkyst fra Grrønland af ned til New-Eugland 

 Staterne. 



Ved de scandinaviske Kyster har den hidtil væsentlig 

 været kjendt fra det noget grundere Vand i Nærheden af 

 Land ; sandsyuligvis er den dog udbredt paa passende Dyb- 

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

 af mangelfulde Apparater ikke været ei-holdte i nogen be- 

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

 dog her maa forekomme tildels i Mængde, fremgaar deraf, 

 atdeubaade erholdtes (paa Siat. 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 mellem 200 og 300 

 Favne. 



Gren. Grlik^Jtoceplialixs, Gottsche. 



AVien-ni. Airh. f. Naturg. 1 .lahro-. is:!5, B. I, p. l.iCi (ISSo). 



Legemet højrevendt^ ff^o,i^ særdeles langstrakt^ med 

 hort Halerod. Tænderne smaa^ tætsiddendé, mej- 

 seJ dannede, taJrigst -paa Blindsiden, og danne i 

 hegge Kjævfir en enJcelt sluttet Bække: Vomerin- og 

 Palatiniænder mangle. Mundaabningen sWrdeles 

 liden: KJæverne omtrent lige lange,' og naa hos de ud- 

 voxede neppe hen_ tinder Øjets forreste Rand. Anal- 

 torn i .Begden tilstede. Sidelinien næsten ret. Cau- 

 dal en aj rundet. Skjæl I ene smaa, af ulige Størrelse, 

 glatte. Hovedet Itdet^ med en Bække Gruber paa 

 Blindsiden: piene iætsiddende. Strcuileantallet be- 

 ty delig t. 



30. Glyptocephalus cynoglossus, (Lin.) 1766. 



PUuronectea cynoyloasus, Lin. Syst. Nat. ed. 12, tom. 1, ]). 4rifi (lT(i(i). 

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



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

 • Plciironectea. saxicola, Faber, Tidsskr. f. Xaturv. .i B., p. 244 iKbhva. 



1828); Isis 1S28, p. 877 (1828). 



Jrnjida. Tor., a Planoria. nnd. in most of the individuals, 

 a little gravel or mud. 



In one bf tlie Tanap Fjord specimens. Peden græn- 

 Jandicus — several examples — constituted tlie sole con- 

 tents of the ventricle. 



Distribution. — From what has been stated above. 

 Bloch's Pleiiroiiedes limandoides must be regarded as the 

 southern branch oi F ahvicins's Pleuronedes plat esso ides ; and 

 the species ranges therefore from Spitzbergen and Iceland 

 along the north-western shores of Europe to the British 

 Channel : and in America, from Greenland to the coasts of 

 the New England States. 



On the coasts of Scandinavia, B. 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 fi-om the nearest land; nay, on one 

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

 and small, were obtained at' a depth of 200— 30(J fathoms. 



Gren. <jrl;^T>tocei>lialris, Gottsche. 

 Wiegm. Arch. f. Xaturg. 1 .Taliro-. 183:i, B. 1. p. l.'.r. (183."i). 



Body dextral, smooth, elongated, peduncle of 

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

 numerous on tlie blind side, forming- a continuous 

 cutting edge on either side; vomerine and palatine 

 teeth waniing. Mouth very small; jaws about equal 

 in length, in adults scarcely reaching the anterior mar- 

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

 Lateral line almost .straight. Caudal rounded. The 

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

 with a series of foveæ on the blind side. Eyes 

 approximate. Fin-rays numerous. 



30. Glyptocephalus cynoglossus. (Liu.) 1766. 



Pleuronectes cynoglossus, Lin. Syst. Nat. ed. 12, torn. 1, p. 4.')6 (1766). 

 Pleuronectes pola, Lacép. .Hist. Nat. Poiss. suites å Buflbn, tom. 4, p. 



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

 .Pleuronectes saxicola, Taber, Tidssk]-. f. Natim". ■< B.. p. 244 iKlilivii. 



1828); Isis 1828, p. 877 (1828). 



