144 Haqjiuia 



and apex, and about 7 plumose setae on outer margin; 4*^^ Joint of palp 

 with nail shorter than the base. Gnatbopods 1 and 2, palm very oblique, longer 

 than bind margin of 6*^ Joint; gnathopod 2 more robust than gnathopod 1. 

 Peraeopod 4 much longer than half the body, 5*^ Joint longer than 4*'^, 

 6*^ longer than ö^^. Peraeopod 5, 2^ Joint much expanded, but longer than 

 broad, only partly overlapping 4**^ Joint, the bind margiu weakly and not 

 acutely serrate. üropod 3, outer ramus with 4 spines on outer and 2 on 

 inner margin, 2'* Joint rather less than half length of l^S inner ramus 

 unarraed, equal 1^* Joint of outer. Telson about as long as broad, tapering 

 to the broadly rounded scarcely dehiscent apices. L. Q about 8 mm. 



Southern Indian Ocean (Kerguelen Islands). Depth 55 — 220 m. 



9. H. plumosa (Krayer) 1842 Phoxus plumosus, (Holbell in MS.) Kreyer in: 

 Naturh. Tidsskr., ». 4 p. 152 | 1871 Harpina plumosa, A. Boeck in: Forh. Selsk. Christian., 

 1870 p. 135 I 1876 Harpinia p. (part.), A. Boeck, Skand. Arkt. Amphip., v.2 p. 219 t. 8 

 f. 5 I 1891 H.p., G. O. Sars, Crust. Norway, v.l p.l5l t. 52 | 1893 H.p., A. DellaValle 

 in: E. Fl. Neapel, i. 20 p. 749 j 1853 Phoxus fvsif'ormis, Stimpson in: Smithson. Contr., 

 ».6 nr.5 p. 57 | 1876 Harpinaf., S.I.Smith (& H arger) in: Tr. Connect. Ac, v.'d p.29. 



Body moderately compressed, glabrous above. Hood slightly projecting, 

 apically narrow; postero-antennal corners nearly right-angled. Side-plates 1 — 5 

 fringed with about 7, 6, 6, 10, 4 strong plumose setae. Pleon segment 3, 

 postero-lateral angles forming long, acute, slightly upturned process. Antenna 1, 

 1^* Joint of peduncle verylarge; flagellumö-jointed, about half length ofpeduncle, 

 accessory flagellum 5-jointed. Antenna 2, penultim^ite Joint of peduncle 

 heart-shaped, flagellum 5-jointed. Maxillipeds (in attachment with peraeon 

 instead of with head, Kr0yer), outer plates armed on inner margin and apex 

 with 7 — 9 serrate spine-teeth. Gnatbopods 1 and 2 nearly equal, in 6*^ Joint 

 palm shorter than bind margin. Peraeopod 4 scarcely longer tlian half 

 the body. Peraeopod 5, 2*i Joint subquadrate, overlapping most of 4**", 

 bind margin with 3 or 4 feeble points over a well marked excavation. 

 üropod 3 very short, outer ramus with 3 spines on outer margin, 2^ Joint 

 paore than half lengih of 1^*, inner ramus unarmed, longer than P* Joint 

 of outer. Telson broader than long, apices obtuse. Colour pale yellow. L. 9 7 mm. 



Arctic Ocean and North-Atlantic (Greenland, Spitzbergen, Nova Scotia, Kara 

 Sea, Siberia, America; Norway?). 



10. H. truneata O. Sars 1891 H. t, G. O. Sars. Crust. Norway, v.l p.l57 t.55 

 f. 1 i 1893 H. crenulata (part.), A. DellaValle in: F. Fl. Neapel, v.20 p. 745. 



9 . Body rather robust'. Hood prominent. Side-plates, setae not 

 numerous. Pleon segment 3, postero-lateral angles rounded, without denticle; 

 Segments 1 — 3 densely hirsute. Antenna 1, flagellum 7-jointed, accessory 

 flagellum 6-jointed. Antenna 2, flagellum 6-joiuted. Gnatbopods 1 and 2, palm 

 longer than bind margin of 6**^ Joint, especially in the more robust gnatho- 

 pod 2. Peraeopod 4 more than half length of body, 6*^ Joint elongated, 

 with 4 recurved feathered setae on bind margin. Peraeopod 5, 2^ Joint 

 much expanded, bind margin little serrate and transversely truncate below. 

 üropod 3, outer ramus with 5 spines on outer margin of 1^* Joint, 2^ very 

 small, inner ramus ^4 length of 1^* Joint of outer. Telson rather longer 

 than broad, apices divergent. Colour greyish white. L. 6 mm. — ö unkuown. 



Trondhjemsfjord, depth 188—282 m; Skagerrak (Bohuslän). 



11. H. abyssi 0. Sars 1879 H. a. + H. carinata ((J), G. 0. Sars in: Arch. Naturv. 

 Kristian., v. 4 p. 443, 444 | 1885 H. a. -\- H. c, G. Ü. Sars in: Norske Nordhavs-Exp., «. 6 

 Crust. 1 p. 157 t. 13 f. 5, 5 a— m; p. 159 t. 13 f. 6, 6 a— e | 1891 H. a., G. 0. Sars, Crust. 

 Norway, v. 1 p. 160 t. 56 f. 1 | 1893 H. a., A. DellaValle in: F. Fl. Neapel, v. 20 p. 745. 



