KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND. 22. N:0 J. 9? 



The metacarpus is only a little longer than the carpus; in the fifth pair it is serrated 

 along the front margin. 



The last pair of uropoda have the outer ramus somewhat longer, but narrower 

 than the inner one; this latter is serrated along both margins, and is about half as long 

 as the peduncle. The peduncle is three times as long as broad. 



The telson is triangular, more long than broad at the base; it equals in length a 

 third of the peduncle of the last pair of uropoda. 



4. HYPEROCHE LUETKENI, C. BOVALL1US, 1887. 



PL VII, fig. 1—26. 

 The name given in honour of Professor Chr. Fr. Lutken of Copenhagen. 



Diagn. Caput segmenta duo priora peran longitudine aequans. Processus tibialis pedum perm primi 

 paris basin processus carpalis fere attingens, margo anterior processus carpalis serratus, 

 margine posteriore raetacarpi longior. Carpus pedum tertii ac quarti parium paullo dilatatus; 

 margo posterior rectus, serratus, angulo inferiore producto. Pedes parium trium ultimorum 

 pedibus parium dnorum praacedentium non longiores; femur angustum (9), vel paullo dilatatum 

 (d*); metacarpus mediocris, metacarpo pedum tertii ac quarti parium paullo brevior. Pedes 

 uri primi paris apicem pedum ultimi paris fere attingentes; ramus externus internum longitu- 

 dine fei - e aequans. Telson tertia parte longitudinis pedunculi pedum uri ultimi paris longius. 



The head equals in length the first two personal segments together. The tibial process of the 

 first pair of percpopoda reaches almost to the base of the carpal process; the front margin 

 of the carpal process is serrated; it is longer than the hind margin of the metacarpus. The 

 carpus of the third and fourth pairs is somewhat dilated; the hind margin is straight, 

 serrated, the lower corner is produced. The last three pairs are not longer than the two 

 next preceding pairs; the femur is narrow (9), or a little dilated (o 71 ); the metacarpus is 

 mediocre, a little shorter than that of the third and fourth pairs. The first pair of uropoda 

 reach nearly to the apex of the last pair; the outer ramus is almost as long as the inner 

 one. The telson is longer than a third of the length of the peduncle of the last pair. 



Colour. The younger animals are light red to reddish brown, the elder animals deeply brown. 



Length. 8 to 15 mm. 



Hab. The Northern Arctic region, at the west coast of Greenland and at Spetsbergen; the 

 Northern Atlantic. (D. M.; F. M.; K. M.; P. M.; S. M.; IT. M.) 



Syn. 1887. Hyperoche. Luetheni, C. BOVALLIUS. "Systematical list of the Araphipoda 



Hyperiidea.» Bill. t. K. Sv. Vet. 

 Ak. Hand]. Bd. 11. N:o 16, 

 p. 19. 

 » » » » 1887. »Arctic and Antarctic Hyperids». 



Vega-Exp. Vetensk. Iakttagelser. 



Bd.4, p. 565, pi. 44, fig. 55— ll. 1 ) 



J ) With regard to fig. 55 — 62, wrongly cited as belonging to Hyperoche abyssorum, see the foot-note 

 5 on p. 85. 



K. Sv. Tet. Ak. Handl. Baud. 22. N:o 7. It) 



