BIHANQ TILL K. SV. VET.-AKAD, HANDL. BAND 27. APD IV. N:0 8. 79 



of the oral parts there are some deviations to be tbund in 

 the form of the two distal joiuts of the palp of the man- 

 dible, the third one being triangulär, with the apex very 

 broad. The maxillipeds and the first ])air of pereiopods, the 

 gnathopods, are also relatively much shorter and thicker than 

 in P.sei(do))i))i(( roscum, as may be seen by comparing my fig- 

 ures with those given by Saks in his »Carcinologiske Bidrag», 

 I, tab. IV, fig. 11, 12. 



Locality: 



in 1900: 



stat. 27. East Greenland, Franz Joseph Fiord, entrance of Musk-ox 

 Fiord depth 220 m., raud, 21 VIII, two spec. (females, the 

 oue very mutilated, without pleon and the half of the 

 pereion). 

 Leufffh 20 mm. 



Erythrops G. O. Särs 1869. 

 Nemafopus (t. O. Särs (preoccupied). 



In the year 1863, G. O. Särs, in his »Beretning om en i 

 Sommeren 1862 foretagen zoologisk Reise i Christianias og 

 Trondhjems Stifter^ has described two new Mysideans for 

 which he created a new genus, Nematopus. Next year he 

 added two other species, and also referred to it Mysis criithro- 

 phthahna described by GoÉs nearly at the same time. Then, 

 in his most important paper, espeeially with regard to Schizo- 

 jtofhi, viz. »Undersögelser över Christianiafjordens Dybvands- 

 fanna-^>, he enlarges the genus with a new species, but, at 

 the same time, changed the generic name into Erythrops, the 

 old name being preoccupied. For one, of the former species 

 he also instituted a new genus, viz. Farerythrops to indicate 

 the close relation ship with the typical genus. In his »Mo- 

 nographi över de ved Norges Kyster förekommande Mysider», 

 the genus was thus made to include the following species: 

 Erythrops Goesii (= Mysis erythrophthalma GoÉs), Erythrops 

 serrata, Erythrops microphthalma (= Nematopus 7uicrops), Ery- 

 throps piygmcea (= Nematopus elegans), Erythrops ahyssorum. 

 Another species was described in his report on the crusta- 

 ceans of the Norwegian North Atlantic Expedition, viz. Ery- 



