Parorchestia, Hyale 559 



than pedmicle, 8-jointed. Antenna 2 sleader, penultimate Joint of peduncle more 

 than half as long as ultimate, flagellum witli about 20 joints, which are longer 

 than broad. Gnathopod 1 in d slender, 4:^^ Joint with obtuse pellucid process 

 of hind margin, 5*^ with free part of hind margin broadly produced, 6*^ Joint 

 not very long, with ^/g length of hind margin slightly bulging, and the small 

 finger reaching end of palm, but not of apical border. Gnathopod 2 in d, 

 6*^ Joint large, subovate, palm spinulose, very oblique, slightly convex, not 

 defined by any tooth, with a very small excavation near the hinge, finger 

 with a corresponding thickening, the rest of its inner margin slightly sinuous. 

 Gnathopod 1 in 9 , 4*^ Joint longer than 3^^ ö^'^much longer than 6*^ 6*^ narrowly 

 oblong, finger a little overlapping the palm. Gnathopod 2 in o , 3^ Joint 

 longer than 4*^, 5*'^ rather longer than 6*^^, free part of hind margin somewhat 

 expanded, 6*^ elongate, produced to a narrowly rounded apex, much beyond 

 the small finger, which is placed rather obliquely. Peraeopod 3 considerably 

 shorter than peraeopod 4, 2<^ Joint in both piriform, with scarcely any free 

 corner. Peraeopod 5 rather longer than peraeopod 4, 2"^ Joint much wider, 

 as broad as long, a little narrowed below, free corner rounded, distinct. 

 Uropods 1 and 2, outer ramus with spines only at apex, in both sexes (Dana: 

 only in d). üropod 3, peduncle short, scarcely longer than broad, ramus 

 triangulär, much narrower than peduncle and rather shorter, with 3 spines. 

 Telson slightly notched at apex, L. 12 — 16 mm. 



New Zealand. From raoist soll in the bottom of the extinct volcaoo of Taiamai 

 far from the sea, and perhaps in other parts. 



11. Gen. Hyale H. Rathke 



1837 Hyale (Sp. im.: H. pontica), H. Kathke in: Mem. pres. Ac. St.-Petersb., 

 V.3 p.377 I 1876 H., T. Stebbing in: Ann. nat. Bist., ser.4 v.U p.337 | 1879 H., Subgen. 

 H., Wrzesniowski in: Zool. Anz., v.2 p. 201 | 1888 H., T. Stebbing in: ßep. Voy. 

 Ohallenger, v.29 p. 171 etc. | 1890 H., G. 0. Sars, Crust. Norway, v.l p. 26 | 1893 IT., 

 A. Della Valle in: F. Fl. Neapel, v.20 p.517 j 1849 Nicea (Sp. un.: N. lucasii), H. Nicolet 

 in: Gay, Hist. Chile, v.3 p. 237 [ 1849 Allorchestes (part.), J.D.Dana in: Amer. J. Sei., 

 ser.2 u 8 p. 136 i 1852 A (part.), J.D.Dana in: P.Amer.Ac, v.'2 p.205 | 1856 Galanthis 

 (Sp. un.: G. lubbockiana) (non Gistl 1848, Mollusca!), Bäte in: Rep. Brit. Ass., Meet. 25 

 p.57 I 1857 G., Bäte in: Ann. nat. Hist., ser.2 t;. 19 p. 136. 



Side-plate 4 much deeper than 5*^ Antenna 1 longer than peduncle 

 of antenna 2. Maxilla 1, palp 1-jointed, reaching to base of apical spines 

 of outer plate. Maxillipeds, palp 4-jointed. Gnathopod 2 in d (Fig. 96 

 p. 565), 5*ii Joint small, masked behind by 4*'^. Gnathopod 2 in 9 , 5*^^ Joint 

 produced behind between 4*^ and 6*^. üropod 3 uniramous. Telson divided. 



Chiefly on coasts, also in the Sargasso Sea and on floating objects of various 

 kinds, sometimes apparently in the open ocean. 



22 accepted and 20 doubtful species. 



Synopsis of accepted species: 



Body carinate — 2. 

 Body not carinate — 3. 



Body without dorsal teeth 1. H. earinata p. 561 



Body with dorsal teeth 2. H. ochotensis . . . . p. 561 



J Antenna 2 longer than the body 3. H. eampbellica . . . p. 562 



\ Antenna 2 not longer than the body — 4. 



