36 



THH FISHES OF THF IXGOLF EXPEDITIONS. 



Mellville island and near the „Copper mine" (67 12' Lat. North) in the Gulf of Bothnia and in the adjoining part of 

 the Baltic, in the Swedish and Russian lakes, in the White Sea and at Novaja-Semlia. Cfr. my former communication 

 the on the northern Cottoids in a Vidensk. Meddel. Naturh. Forening" 1876. Further information on its distribution at 

 the east coast of Greenland may probably be awaited through a future Eastgreenland expedition. 



Icelus hamatus Kr. 



The places where this little arctic Cottoid was obtained at the ■ Ingolf ■ expedition were: 



Station Lat. X. Long. W. fathoms bottom temp. 



31: 66 35' 55° 54' off Holsteinsborg 88 i°.6 C. 



33 : 67 57' 55° 30' S.W. of Egedesminde 35 gray sand o : .S C. 



34: 67 17' 54° 17' off Holsteinsborg. 55 o : .8 C. 



127: 66° 33' 20 c 05' North of Iceland 44 sand bottom 5°.6 C. 



Other informations on its distribution and occurrence will be found in the report of the 

 Dijmphna expedition and in <the Norwegian North-Sea expedition , in Oceanic Ichthyology^ etc. 

 In the last cited work and in Gilbert's report on the fish-collections made in the northern part of 

 the Pacific (at Alaska, Unalaska etc.) it is named Icelus bicornis (Reinhardt), the author probably 

 following the hypothetical suggestion by Collett, that an Icelus may have been the foundation of 

 Reinhardt's Coitus bicornis, which can not be determined with certainty, the original specimen not 

 existing. To change a denomination of scientific certitude with another of dubious applicability can 

 only involve uncertainty and want of clearness. Gilbert also infers the possibility that the Pacific 

 type might differ specifically from the Atlantic North-Sea type. There are further named by North- 

 american ichthyologists quite a series of Northpacific species: Icelus spinigcr, canaliculatus, vicinalis, 

 euryops and scutiger, Iccliuus borealis, tenuis, filamentosus, fimbriatus and oculatus, as well as some 

 species of new genera unknown to me. The relation between those representative ■> species from the 

 same region of both oceans is, it is true, of great interest, but requires for its solution a relatively 

 great material placed in one single hand. 



Artediellus (Centridermichthys) uncinatus (Rhdt). (Tab. IV, fig. 9.) 



Of this small Cottoid main' specimens were captured at station 33 (67 57' Lat. North, 55 30' 

 Long. West, at a depth of 35 fathoms, on gray sand, at a temperature at the bottom of 0.8 C), some 

 at station 29 (65° 34' Lat. North, 54- 31' Long. West, depth 68 fathoms, on sandy bottom, temperature at 

 the bottom o .2 C.| and a single specimen at station 31 (66 : 35' Lat. North, 55° 54' Long. West, at 88 

 fathoms, temperature of bottom i°.6C), all on localities off the west coast of Greenland, not farther 

 south than Sukkertoppeu, not farther north than Egedesminde. On its occurrence elsewhere may be 

 rred t<> my former Meddelelser 0111 nordiske Ulkefiske ( Yidensk. Medd. Naturh. Forening 1876, 

 Novaja Semlia, coast of Norway down to 59 ) and to Bidrag til Kundskab om Kara Havets Fiske 



Dijmphna-Togtet [886, p. 124, west coast of Novaja Semlia); to Collett: (den norske Nordhavs- 

 Expedition , Fiskene, p. 29, between North Cape and Spitsbergen) and his Meddelelser om Norges 

 Fiske i Nyt Magasin for Naturvidensks Bd. 29, 1884); also Hubrecht ( Niederl. Archiv f. Zoologie, 



