KONOL. SV. VET. AKADEMIENS HANDLINGAR. BAND. 22. N:0 7. 97 



The metacarpus is only a little longer than the carpu.s; in the fifth pair it is .serrated 

 along the front margin. 



The last jmir of ^iropoda liave the outer rarans somewhat longer, bnt narrower 

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

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



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

 third of the peduncle of the last pair of nropoda. 



4. HYPEROCHE LUETKENI, C. BOVALLIUS, 1887. 



Pl. VII, iig-. 1—26. 

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



Diagn. Caput segmenta duo priora persei longitudine sequans. Processus tibialis pedum percei primi 

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

 raargine posteriore raetacarpi lougior. Carpus pedum tertii ac quarti parium pauUo dilatatus; 

 uiargo posterior rectus, serratus, angulo inferiore pi-oducto. Pedes parium trium ultimorum 

 pedibus parium diiorum prsecedentium non longiores; femur angustum (?), vel pauUo dilatatum 

 (ef); metacarpus mediocris, metacarpo pedum tertii ac quarti jjarium paullo brevior. Pedes 

 nri primi paris apicem pedum uhimi paris fere attingentes; ramus externas internum longitu- 

 dine fei-e sequans. Tehon tertia parte longitiidinis pedunculi pedum uri ultimi paris lougius. 



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

 first pair of perreopoda 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 liind margin is straight, 

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

 next preceding pairs; the femur is narrow (?), or a little dilated (ef); 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 felson is longer than a thn-d of the length of the peduncle of the last pair. 



Colour. The younger animals are light red to i-eddish brown, the elder auimals deeply brown. 



Leilgtb. 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.; U. M.) 



Syu. 1887. Hyperoclie Lnetkem, G. BOVALLIUS. — »Systematical list of the Amphipoda 



Hvperiidea.» Bih. t. K. Sv. Vet. 

 Ak. HandL Bd. 11. N:o 16, 

 p. 19. 

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



Vega-Exp. Vetensk. Iakttagelser. 



Bd.4, p. 565, pl. 44, fig. 55—71.») 



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

 5 011 p. 85. 



K. Sv. Vet. Ak. Handl. Band. 22. N:o 7. -^-ö 



