Haploops 



117 



2. H. tubieola Lilj. 1852 Ämpelisca eschrichti? (err., non A. eschrichtii Krayer 

 1842!), \V. Liljeborg in: Öfv. Ak. Förh., v.9 p. 6 | 1855 Haploops tubieola -{- H. carinata, 

 W.Liljeborg in: Öfv. Äk. Förh., y.l2 p. 135, 136 | 1880 H.t., Stuxberg in: Bih. Sveuska 

 Ak., V.5 nr.22 p.65 | 1891 H.t, G. 0. Sars, Crust. Norway, ».1 p.l92 t.67 | 1894 H.t., 

 T. Stebbing in: Bijdr. Dierk., f. 17 p. 19. 



Pleou in d carinate. Corneal lenses 2, pigment bright reddish. Anteuna 1 

 about half leugth of body, 2^ joiut miich longer than 1^*, flagellum 2^/^ 

 times as long as peduncle, with about 23 joints caiTving setae. Antenna 2 

 subequal to anteuna 1, ultiraate and penultimate joints of peduncle subequal. 

 Peraeopod 5, 2'^ joiut rather naiTOw, broadest at base, bind margin concave, 

 lower lobe naiTOw, scarcely reacbing beyond 3^^ Joint, 4*'^ longer than 5*^, 

 6^^ and 7^^ veiy small. Uropod 1, inner ramus % leugth of outer, 

 eaiTving spiuules; uropod 3, ranii subequal and foliaceous, fringed in d with 

 long ciliated setae, in 9 with shorter setae, the outer ramus baving also 

 4 spiuules. Telson a little longer than broad, cleft extending far beyond 

 the raiddle, apices somewhat rounded. Body whitish, pellucid, Avith dark 

 violet intestiue. L. d 11, 9 10 — 22 mm. 



Arctic Ocean, North-Atlantic, JSTortli-Sea, Skagerrak, Kattegat and Baltic (Nor- 

 wegian, Danish, Dutch, French and British coasts). 



3. H. laevis Hoek ?1866 H. tubieola (part.), Gotis in: Öfv. Ak. Förh., i- 22 p.528 j 

 1893 H. t. (part.), A. DellaValle in: F. Fl. Xeapel. t'. 20 p. 486 | 1882 H. laevis, Hoek 



in: Niederl. Arch. ZooL, suppl. 1 nr.7 p.61 t.3 f. 31 | 1894 

 H. l, T. Stebbing in: Bijdr. Dierk., r. 17 p. 19 t.3. 



Several segments of peraeon with a patch of fine 



down on the back. Corneal lenses 4. Antenna 1 



about half length of body, l^t Joint nearly as long 



as 2'\ flagellum in 9 30- 



jointed, scarcely twice as long 



as peduncle ; antenna 2 rather 



longer than antenna 1, ulti- 



mate Joint of peduncle a 



little longer than penultimate. 



Gnathopod 1, 6^^ jöint distally 



i'ather wideued instead of 



narrowed as is more usual. 



Peraeopod 5 (Fig. 29) nearly 



as in H. tubieola, but the 



little 6*'^ and 1^^^ joints more 



elongate. Uropod 1, inner 



ramus % length of outer, both 



smooth; uropod 2 furnished 



with spiues; uropod 3 in 9 



with rami not longer or 



broader than those of uropod 2, 



setose, the inner and shorter 



brauch carrying also 2 spines. 

 Telson scarcely longer than broad, cleft fully % length, sides slightly couverging, 

 apices broadly rounded. L. reaching 19 mm. 



Arctic Ocean (between lat. 69" and 760N., long, 36» and 65" E.). Depth 45—276 m. 



4. H. setosa ßoeck 1871 H. s., A. Boeck in: Forh. Selsk. Christian., 1870 p.228 | 

 1876 H.S., A. Boeck. Skand. Arkt. Amphip., i?.2 p.541 t. 30 f. 7 | 1891 H s., G. Ü. Sars, 

 Crust. Norway, v.l p.l94 t.68 f.l \ 1893 H. s., A. Della Valle in: F. Fl. Neapel, r.20 p.489. 



Fig. 28. H. laevis. 

 Mandible. ' 



Fig. 29. H. laevis. 

 Peraeopod 5. 



