BIHANG TILL K. SV. VET.-AKAU. HANDL. BAND 27. AFD. IV. N:0 8. 2H 



Macrura. 



Fam. Crangonidse. 

 Sclerocrangon Särs 1<s82. 



In his vOversigt af Norges Crastaceer med forel0bige 

 Bema;rkninger över de nye eller mindre bekjendte Arter» 1. 

 c. 1882 Särs instituted a new genus to receive this Arctic 

 species Crangon horeas known more than a century ago. He 

 afterwards gave, in the Norwegian North Atlantic Expedi- 

 tion, a generic diagnosis. In the genus he also included a 

 new species obtained during the said expedition, and with 

 some hesitation, Crangon catcqjhractus Olivi, from the Medi- 

 terranean. Låter on, he added to the genus Cheraphihis 

 Ayassizii Smith, from the Eastern coast of United States, 

 and, in 1895, it was enlarged by Ortmann^ with the following 

 species: Crangon atrox Faxon,^ from Western coast of Mexico, 

 Crangon sharjn n. sp. from Alaska, Crangon procax Faxon, 

 from Western coast of Central America, Crangon intermedius 

 Stimpson, from Bering Sea and Alaska, Crangon angusticauda 

 de Haan, from Japan, Crangon munitus Dana, from Puget 

 Sound and Lower California.^ Besides the true Crangon 

 salehrosus Owen, the genus Sclerocrangon would thus include 

 no less than eleven species, seven of which belpnging to 

 the North Pacific, three to the North Atlantic, and one to 

 the Mediterranean. 



5. Sclerocrangon boreas (Phipps). 



1774. Cancer Boreas Phipps, Voyage towards the North Pole, 



p. 190, Tal). XII, Fig. 1. 



1842 — 4;}. ("rangen » Kröyer, De hidtil bekj. nord. Krangon- 



Art. 1. c. p. 218, Tab. IV, Fig. 1—14. 



^ It may be remarked that this author regards it as a subgenus of 

 Crangon. 



- Faxon. Prelim. Descript. New Spec. Orust. L c. p. 199. 



" Ortmann. Study Syst. Geogr. Distrib. Crangonidse \. c. p. 177. 



