Hyale 565 



peduncle short, 1®* Joint subequal to 2*^ and 3*^ combined, flagellum with 13 joints, 

 of which the proximal are short. Antenna 2 niore than half as long as body, 

 ultimate Joint of peduncle longer than the short penultimate, flagellum 25-jointed. 

 Gnathopod 1 in d, 2*^ Joint short, broad except at base, 3*^ with small front lobe, 

 5*^ with small bind lobe, 6*^^ oblong oval, palm oblique, spinulose, separated 

 from bind margin by rouuded angle carrying a palmar . 



spine. against the inner side of which the apex of finger /] 



closes. Gnathopod. 2 in ö (Fig. 96), 2^ Joint lobed ^^-^^^ Vttt 



at distal end of front margin, 3*1 lobed in front, Z'^^^f^" &"■ Joint 



rounded apex of 4*^ touching the base of 6^^, / __._V_.. g„, .^^^^ 

 6*^^ elongate, widest at base, front margin smoothly / ^^ 

 curved, palm closely fringed with slender spinules, / ^ßy 

 extending almost whole length of Joint, nearly /^ ^^^^^ 

 straight, butwith an emargination between two slight ^^i=_-^ 

 swellings, one of which adjoins the finger-hinge, Fig. 96. h. macrodactyia, (^. 

 the long, blunt, slightly sinuous finger capable of Gnathopod 2. 



touching apex of 4*^^ Joint. In a specimen, which appears to be a young d , the 

 oblique palm is straight, finger matching; it. Gnathopods 1 and 2 in 9 , 6**^ Joint 

 narrowly oblong. Peraeopods 1 — 5, 6**^ Joint at inner apex carrying a strong 

 blunt spine, with a similar much shorter one below it. finger curved, inner 

 setule minute. Peraeopods 3 and 5, 2*^ Joint somewhat orbicular. Peraeopod 4, 

 2<i Joint oblong oval, rather wider above than below. Uropods 1 and 2, both 

 rami with lateral spines. üropod 3, ramus as long as peduncle. Telson cleft to 

 base, lobes bluntly triangulär. L. about 4 mm. 



Tropical Atlantic (St. Thomas' harbour; Rio Janeiro). 



10. H. aquilina (A.Costa) 1857 Amphithoe a., A.Costa in: Mem. Acc. Napoli, 

 v.l p.202 t.2 f. 7 ! 1893 Hyale a., A. Della Valle in: E. Fl. Neapel, u 20 p.523 1. 16 

 f. 43 — 47 I 1862 AUorchestes pereiri (part.), Bäte, Cat. Amphip. Brit. Mus., p. 42 | 1866 

 Nicea fasciculata, Cam. Heller in: Denk. Ak. Wien, i7. 26n p. 6 t. 1 f. 10 — 12 | 1879 

 Byale f., Wrzesniowski in: Zool. Anz., v.2 p. 202 ] 1888 H. gazeUa (part.), T. Stebbing 

 in: Rep. Voy. Challenger, t;. 29 p. 297. 



Side-plate 1 broader than deep. Antenna 1 half as long as antenna 2 or a 

 little more, flagellum twice as long as peduncle, 15- or 16-jointed. Antenna 2 

 about % as long as body or a little less, ultimate Joint of peduncle rather 

 longer than penultimate, flagellum fully twice as long as peduncle, 30 — 32- 

 jointed. Maxillipeds, 3*^ Joint of palp setose, 4*^ acute. Gnathopod 1 in c? 

 small, 5*^ and 6*^ joints subequal or 5*^ Joint a little longer, 6*^ subrotund, 

 about as broad as long, palm a little sinuous, spinöse, almost transverse, 

 finger compressed, laminar, dilated from the base towards the apex, which 

 is constricted, ending in a curved point, producing rßsemblance to a hawk's 

 bill. Gnathopod 2 in d robust, oblong oval, palm oblique, not strongly defined 

 (Heller: with a small defining tubercle). Gnathopods 1 and 2 in 9 similar, 

 but 6*^ Joint rather stouter in gnathopod 2; both gnathopods having 5*^ Joint 

 triangulär, shorter than oblong 6*^, finger slender, curved. üropod 3, ramus 

 shorter than peduncle. Telson small, lobes conical. L. 8 mm. 



Mediterranean ; Adriatic. 



11. H. prevostii (M.-E.) 1830 Amphithoe p., H. Milne Edwards in: Ann. Sei. 

 nat., V.20 p. 378 | 1862 Nicea p., Bäte, Cat. Amphip. Brit. Mus., p. 53 | ISdG AUorchestes 

 prevosti, E. Grube in: Arch. Naturg., ». 32i p. 386 | 1888 Hyale prevostii, T. Stebbing 

 in: Eep. Voy. Challenger, i\ 29 p. 144 j 1893 H. p. (part.), A. Della Valle in: F.Fl. 



