Melita 423 



acute, Dot especially large, and seemingly not closing against surface of 6*^ Joint. 

 Peraeopods 3 — 5, 2*^ Joint broadly oval, üropod 3, outer ramus long, inner 

 reduced to a small Scale, peduncle longer than the telson. L. ll"o mm. 



Arctic Ocean (Spitzbergen). 



li. M. fresnelii (Aud.) 1826 Gammarus f., Audouin in: Descr. Egypte, uliv 

 p. 93 Crust. t. 11 f. 3 | 1830 Amphithoe f., H. Milne Edwards in: Ann. Sei. nat., «.20 

 j). 377 I 1875 Melita f., Paramoera (part.), Miers in: Ann. nat. Hist., ser. 4 u 16 p. 75 j 

 1893 M.f., A. Della Valle in: F. Fl. Neapel, ».20 p. 708 t. 60 f. 6 , 1845 Gammarus 

 unisochir, Kreyer in: Naturh. Tidsskr., ser. 2 v.l p. 317 t. 2 f. la — p | 1852 G. (Maera) 

 validus -\- G. (M.) pilosus -\- G. (M.) setipes, J. D. Dana in: P. Amer. Ac, u2 p. 212, 

 213 1 1853 & 55 M. valida-\- M. s. -\- M. anisochir, J. D. Dana in: U. S. expl. Exp., 

 f. 13 II p. 966 t. 66 f. 6; p. 967 t. 66 f. 7; p. 968 t. 66 f. 8 1 1862 Melita v. -[- M. s. + 

 M. a. + M. fresnelii, Bäte, Cat. Amphip. Brit. Mus., p. 185 t. 33 f. 7; p. 186 t. 33 f. 8; 

 p. 186 t. 34 f. 1 ; p. 186 t. 34 f. 2 i 1864 M. exilii, Fritz Müller, Für Darwin, p. 6 f. 1 1879 

 M. australis, Haswell in: P. Linn. Soc. X. S. Wales, v.i p. 264 t. 9 f. 6, 7 | 1890 M. 

 cotesi, G. M. Giles in: J. Asiat. Soc. ßengal, v. 59 p. 64 t. 2 f. 1. 



Peraeon quite smooth. Pleon segment 1, a small median tooth flanked 

 on each side by 3 larger teeth and an outer rudimentary tooth; segment 2 

 similar, but median tootli comparatively smaller, and outer teeth larger; 

 segment 3 with 7 teeth. the outermost on each side furcate; segment 4 with 

 5 teeth. 2 large, the middle and outer small; segment 5 with 2 rather long 

 teeth. Side-plates 1 — 4 tolerably large, setose on the lower margin, 1^* with 

 denticle at lower bind corner. Pleon segment 3, postero-lateral corners 

 produced to a long tooth, serrate on its upper margin. Eyes dark, nearly 

 circular. Antenna 1 nearly % length of body, P* Joint shorter than 2^, 

 3^ scarcely ^j^ as long as 2*^, flagellum much longer than peduncle, 40-jointed, 

 accessory flagellum more than ^^ of primary, 6-jointed. Antenna 2 a little 

 shorter, ultimate Joint of peduncle slightly shorter than penultimate, flagellum 

 % as long as peduncle, about 20-joiuted. Mandible, 10 spines in spine-row, palp 

 slight. but a little longer than the trunk. Maxiila 1, inner plate with 10 setae. 

 Guathopod 1 small, 6**^ Joint oval, broader than 5*^, both setose, finger short, 

 pointed, strongly curved, seemingly not very freely movable. Gnathopod 2 

 in 9. similar to gnathopod 1, but longer and larger, 6**^ Joint longer but 

 not Proportion ately broader, palm and inner margin of finger finely denti- 

 culate (as seen in M. amtralis Haswell). Gnathopod 2 in d, the right limb 

 nearly as in Q , the left quite different, 2^ Joint rather dilated, 4*^ produced 

 to a backward-directed point, b^^ very small, 6**^ and finger forming a sort 

 of chela; the 6*'^ Joint, instead of being shorter than 2"^, is more than twice 

 as long, and of great breadth, its bind margin longer than the front, produced 

 to a great spoon-shaped tooth, between which and the finger-hinge are 3 teeth 

 or tubercles, the finger long, massive, slightly siuuous and apically blunt. 

 Peraeopod 1 rather longer than peraeopod 2. Peraeopods 3 — 5, 2^ Joint 

 minutely serrate behiud. Peraeopod 4 slightly longer than peraeopod 5. 

 üropod 1, rami about equal to peduncle and one to other. üropod 2, rami 

 rather longer than peduncle. üropod 3, outer ramus nearly twice as long 

 as peduncle. inner ramus small, almost linear. Telson cleft nearly to base, 

 lobes conical, widely dehiscent, apices curved a little inward. Colour clouded 

 yellowish grey, thumb of chela porcelain-white. L. about 1 3 mm. (Diagnosis 

 taken especially from Kr0yer's account). 



Red Sea? (Egypt); Atlantic (Rio Janeiro, depth 11 — 13 in; Desterro); Indian 

 Ocean (Andaman Islands, shallow water; Singapore, depth 3 m); Port Jackson [East- 

 Australia]. 



