568 Hyale 



2^ Joint with front distal end forming a veiy broad rounded lobe, 3*^ with 

 similar lobe, 4*^ bliintly pointed, completely masking the sraall ö^^, 6*^ very 

 broad, oblong, widest proximally, palm well defined, not very oblique, with 

 rounded tooth near finger-hinge, linger strong. Gnathopod 1 in Q , 2*^ Joint 

 a little widened distally, 5*^ with spine-fringed lobe, distally wider than 6*^, 

 which is rather narrowly oblong, slightly widened at palm, linger very little 

 longer than palm. Gnathopod 2 in o like gnathopod 1, raarsupial plates 

 very long, rather broad in the middle, fringed with short setae. Peraeopods 

 1 — 5, 6**^ Joint with spines at 5 points of inner margin, finger short, curved, 

 inner setule minute. Peraeopods 1 and 2, 4*^ Joint rather expanded. 

 Peraeopods 3 — 5, 4^^ Joint strongly expanded, stoutly spined on both 

 margins, 5*^^ expanded distally with group of apical spines on bind margin. 

 Peraeopods 3 and 5, 2^ Joint broadly oval. Peraeopod 4, 2^ Joint oblong, with 

 rounded angles, bind margin almost straight. üropod 2, outer ramus shorter 

 and narrower than inner, üropod 3, ramus shorter than peduncle. Telson 

 cleft to the base, the lobes of moderate size, apically narrowed, or (Chevreux) 

 remarkably large, apically iuflated. Colour orange browu, antennae and legs 

 violet-rose. L. about 6 mm. 



North -Atlantic (lat. 42» N., long. 24» W.; lat. 380 K, long. 64» W.); West- 

 Mediterranean. On floating objects and Thalassochelys. 



15. H. crassicornis (Hasw.) 1879 AUorchestes c, Haswell in: P. Linn. Soc. 

 N.S.Wales, t;.4 p. 252 t.7 f. 5 | 1885 A.c., Haswell in: P. Linn. Soc. N. S.Wales, u 10 

 p.95 t.lO f. 2— 5 I 1893 Hyale pontica (pari.)?, A.DellaValle in: F. Fl. Neapel, ?;.20 p.528. 



Body slender. Pleon segment 3, postero-lateral corners quadrate. 

 Eyes oval, dark, very near together above. Antenna 1 slender, reaching 

 beyond peduncle of antenna 2, 2^ Joint rather sborter than 1^*, 3^ scarcely 

 shorter than 2"^, peduncle % as long as the 11-jointed flagellum. Antenna 2 

 about 7.3 ^s long as body, very stout, ultimate Joint of peduncle much 

 longer than penultimate, flagellum tapering, rather longer than peduncle, 

 with 13 joints, of which the proximal are very thick, peduncle and flagellum 

 plumose. Gnathopod 1, 5*^ Joint triangulär, with spinules on rounded apex, 

 6*^ oblong, slightly widened distally, spinuliferous on distal half of bind 

 margin, palm transverse, finger strong, matching palm. Gnathopod 2, 6*** 

 Joint large, oblong, but with rather oblique, well defined, spinulose palm, 

 over which the finger folds closely, not quite reaching the end. Peraeopod 

 3 short, 4*^ and 5*^ subequal, spines not strong. üropod 3 short, ramus 

 as long as peduncle. Lobes of telson blunt. — L. about 10 mm. 



South-Pacific (Kiama [New South Wales]). Eetween tide-marks. 



16. H. pontica H. Rathke 1837 H. p., H. Rathke in: Mem. pies. Ac. St.-Petersb., 

 V.S p. 378 t. 5 f. 20— 28 | 1862 H. p., Bäte, Cat. Aiuphip. Brit. Mus., p. 87 t. 14a f. 1 \ 

 1888 H. j)., T. Stebbing in: Eep. Voy. Challenger, v. 29 p. 163, 499 | 1840 Amphitoe p., 

 H. ililne Edwards, Hist. nat. Crust., i\ 3 p. 37 | 1875 Nicea p., Catta in: Rev. Sei. nat., 

 «7.4 p. 166 I 1856 Galanthis lubbockiana, Bäte in: Rep. Brit. Ass., Meet. 25 p. 57 1. 17 

 f. 7 I 1857 AUorchestes imbricatus -j- G. l., Bäte in: Ann. nat. Hist., ser. 2 v. 19 p. 136 | 

 1861 Nicea l, Bäte & Westwood, Brit. sess. Crust., v.\ p.47 f. ] 1876 Hyale l., T. Stebbing 

 in: Ann. nat. Hist., ser. 4 ».17 p. 337 t. 18 f. 2, a— d | 1890 H. l, G. O. Sars, Crust. 

 Norway, v. 1 p. 27 1. 11 f . 2 | 1895 H. l., A. M. Norman in: Ann. nat. Hist., ser. 6 v. 15 

 p.479 I 1871 H. nilsoni (part.). A. Boeck in: Forh. Selsk. Christian., 1870 p.94 | 1872 & 76 

 H.n., H.nilssonü, K.Boeck, Skand. Arkt. Amphip., vA p.l09 t. 3 f. 3; v.2 p.712 | 1879 

 H. imbricata, Wrzeöniowski in: Zool. Anz., v.2 p. 202. 



