608 к. Stephensen. 



due to confusion with Parerythrops obesa (H. J. Hansen "Ingolf" 1908, 

 p. 107). 



Parerythrops spectabilis has been taken at W. Greenland in Lille 

 Karajakfjord (ca. 71°N., Vanhoffen), otherwise only in the cold area. 



Amblyops Crozetii is only known from E. Greenland 72°42' N., 

 14049' W., 1058 fm. (Ohlin 1901). 



Pseudomma frigidum has been taken at E. Greenland 74°30' N. 

 (Ohlin 1901 : P. roseum, but is in reality P. frigidum, teste H. J. Hansen 

 "Ingolf" 1908, p. 110). It is also known from Jan Mayen and N. W. 

 of the Færoes, as also probably Matotsclikin Skar. 



Pseudomma truncatum has been taken at W. Greenland in Lille 

 Karajakfjord (Vanhoffen) and in the Gulf of St. Lawrence; it goes 

 eastwards to the Kara Sea and has perhaps been taken in the Bering 

 Strait. 



Pseudomma Theelii is only known from E. Greenland 74° 30' N., 

 220 m. (Ohlin 1901). 



Stilomysis grandis ranges from the coast of W. Greenland to the 

 Kara Sea and has possibly been taken in the Bering Strait. 



Mysis ocnlata is almost circumpolar arctic; it occurs in all arc- 

 tic seas and enters into the northern parts of the boreoarctic region, 

 e. g. Iceland, but is not found in the purely boreal region. It has 

 been taken however in the Sound off Landskrona 29 m. (Lönnberg, 

 Meddel, från Kgl. (Svenska) Landtbruksstyrelsen, Nr. 1, 1898). This 

 isolated find in such a well-investigated water as the Sound is so 

 remarkable, that the record seems to be due to a wrong label, and 

 it is not possible, at any rate at present, to regard the animal as a 

 relict on the basis of this single discovery. On the other hand, it 

 has left a slightly transformed relict form in freshwater, M. oculata 

 Fabr. var. relicta (Loven) G. О. Sars, which is known from Norway 

 (Mjösen), Sweden (the large lakes), Denmark (Furesø), Finland, Rus- 

 sia, Germany and the large North American lakes (Wesenberg-Lund, 

 Kgl. danske Vid.-Selsk. Oversigt, 1902, p. 257; Samter, Königl. preuss. 

 Akad. Wiss. Berlin 1905). 



Lanceola Clausii in W. Greenland has been taken in Baffins Bay, 

 ca. 72° N. (Bovallius 1885). Sars (Crust, in Nansen "Norweg. North- 

 Atlantic Exped.", vol. 1, 1900) gives it from the following localities: 

 Polar Sea: 80° N., 134° E.; 84°15'N.— 84°42'N., 96° E.— 72° E.; 84°47' N. 

 — 83°57'N., 25°E.— 11°E. 



Euthemisio libellula is circumpolar and almost exclusively arctic; 

 it composes a very essential part of the plankton of the Polar Sea. 

 The ''Tjalfe" has taken several thousand specimens at W. Greenland 

 from 58°32'N. to 70°42' N. 



Cydocaris Guilelmi has been taken at 3 stations at E. Greenland 



