Harpinia 143 



stout and short at its middle. Peraeoped 4 long, robust, 4*^^^ Joint with 2 

 very long curved apical spines, 6*^ much narrower than 5*^ more than 

 twice as long, finger short, straight, scarcely Vs as long as 6*^. Peraeopod 5, 

 2*^ Joint finely crenulate on regularly rounded bind margin, produced scarcely 

 half-way down the S^, which has very long plumose setae in front, üropod 3 

 a little shorter tlian the preceding. Telson cleft to the base, each half with 

 2 long plumose cilia, planted vertically near the apex. L. 6 mm. 



Eay of Biscay (about lat. 43» N.). Depth 5110 m. 



6. H. antennaria Meinert ISä? Phoxus plumosus (err., non Kreyer 1842!), 

 Bäte in: Ann. nat. Hist.. ser. 2 v. 19 p. 140 1 1862 P. p., Bäte, Cat. Amphip. Brit. Mus., p. 99 

 1. 16 f. 3 I 1876 Harpinia plumosa (part.), A. Boeck, Skand. Arkt. Amphip., c.2 p. 219 t. 8 

 f. 1|1890 H. antennaria, Meinert in: Udb. Hauchs, tJ. 3 p. 160 t. 1 f. 39— 41 j 1891 

 H.negleda, Gr. O. Sars, Crust. Norway, t;. 1 p. 153 t. 53 f . 1 | 1893 E. n. (part.), A. Della 

 Valle in: F. Fl. Neapel, v. 20 p. 747 t. 5 f. 6; t. 35 f. 1—18; t. 60 f. 19. 



Body rather compressed. Hood prominent, postero-antennal corners 

 drawn out to a forward pointing process. Pleon segment 3, postero-lateral 

 angles produced, more in o than in d, acute, slightly upturned; segments 1 — 3 

 in o dorsally densely birsute. Side-plates and antennae as in H. plumosa (p. 144). 

 Gnathopods 1 and 2, palm longer than bind margin of 6**^ Joint, detined by a 

 process in 9, not in d. Peraeopod 4 longer than half of body. Peraeopod 5 

 short, 2^ Joint not overlapping whole of 4*'', serrate points of bind margin 

 small but sharp, about 9, with setules between. üropod 3 slender, outer 

 ramus with 4 spines on outer margin, 2*^ Joint much less than half as long as 

 inner ramus and shorter than 1^* Joint of outer. Telson little broader than long, 

 apices narrowly rounded. Colour gi'eyish white. L. 9 5 mm, d rather less. 



Arctic Ocean, North-Atlantic, North-Sea and Skagerrak (Norway, depth 56— 282 m; 

 Bohuslän ; Great Britain ; France) ; Kattegat. . 



7. H. propinqua 0. Sars 1891 H.propinqva, G. 0. Sars, Crust. Norway, *;. 1 

 p. 156 t. 54 f. 2 I 1893 H. propinqua, A. Della Valle in: F. FI. Neapel, ».20 p. 746. 



Body rather slender. Hood prominent, postero-antennal corners apparently 

 quadrate. Side-plates not densely setose. Pleon segment 3. postero-lateral 

 angles acutely but minutely produced; segments 1 — 3 dorsally finely birsute. 

 Gnathopods l and 2, palm very oblique, but scarcely longer than bind margin 

 of 6*^ Joint. Peraeopod 4 about half length of the body. Peraeopod 5, 

 2^ Joint not completely overlapping 4**^, bind, margin very obscurely serrate. 

 üropod 3, outer ramus with 3 spines on outer margin, 2^ Joint more than 

 half as long, inner ramus about equal 1^* Joint of outer. Telson rather 

 short, broader than long, apices broadly rounded. L. 9 scarce 5 mm. 



Arctic Ocean (Jan Mayen). 



8. H. obtusifrons Stebb. 1888 JS. 0., T. Stebbing" in: Rep. Voy. ühallenger, 

 u29 p. 820 t. 56 i 1893 H. neglecta (part.), A. Della Valle in: F. Fl. Neapel, «;.20 p.747. 



Body robust. Hood prominent, very broadly rounded at the apex. 

 Side-plates with feathered setae very numerous. Pleon segment 3, postero- 

 lateral angles pretty strongly upturned in a rather long acute tooth; the 

 segment covered with a fine down. Antenna 1, 1®* Joint about twice as 

 long as 2^ and 3*^ combined, flagellum 7-jointed, accessory flagellum 5-jointed. 

 Antenna 2, flagellum 8-jointed. Lower lip with small conical tooth at inner 

 side of each principal lobe. Mandible, spine-row of 7 — 9 spines, molar 

 unarmed. Maxillipeds. outer plates with about 14 spine-teeth on inner margin 



