BIHANG TILL K. SV. VET.-AKAD. HANDL. BAND 10. N:0 9. 5 



Aegiochus Nordenskiöldii n. sp. 



Plate I and II. 



Diagn. sp. Corjnis colore albido splendens, non maculatum vel tuber- 

 culatum. 



Capnt oculis perinagnis, non contigiiis. 



A7itennce primi paris acumen epimeri segmenti secundi 

 haud »quantes, flagello Xl-articulato. 



Antennce secundi paris longiores, acumen epimeri seg- 

 menti tertii thoracis attingentes, flagello XV-arti- 

 culato. 



Epimera triangulata. 



Pedes sexti paris longissimi. 



Urus grandis, acuminatus, marginibus serratis. 



Pedes anales non emarginati. 



The bodi/ has a splendid white colour, without spöts or 

 tubercles, and is perfectly smooth as if it were polished. 



The eyes are very large, distant from each other; they 

 do not reach över the anterior margin of the first pereional 

 segment. 



The fb-st pair of antennce do not quite extend to the 

 posterior extremity of the epimerals of the second segment. 

 The llagellum consists of eleven joints. 



The second pair of aritennce are longer; they reach to 

 the posterior extremity of the epimerals of the third segment. 

 The flagellum is 15-articulated. 



The epimerals are triangulate. 



The sixth pair of pereiopoda are the longest. 



The lims is large, ending in a point, with serrated 

 margins. 



The uropoda are not emarginate. 



Adult male. 



The hody is broadly ovate, convex; the broad, thick 

 and deep fifth segment of" the pereion gives the animal a 

 very characteristie habitus; the fifth segment is much the 

 longest and broadest of all; the seventh is the shortest. The 

 animal is twice as long as broad. 



The liead is short and very broad, more than thrice as 

 broad as long [7:2]; it is half as broad as the fourth pereio- 

 nal segment, and only little longer than the first [8 . 7]. The 

 front is rounded, its procumbing part totally separates the 



