420 Cheirocratiis. Megaliirojnis 



in ö much elongated, 6*^ Joint wideniug distally, with fascicles of spinules 

 on both edges, palm much shorter thau bind luargin, scarcelj setose, 

 defined bv a slender tooth and spine, divided into 3 unequal teeth, and 

 raiuutely trilobed near finger-hiugo, finger strong, falciform, dilated in 

 the middle, impinging against palmar tooth. Peraeopods 3 — 5 nearly as in 

 C. robustus (p. 4iy), but here peraeopod 5 still longer. üropod 3, rami rather 

 broad, twice as long as peduncle. Telson much broader than long, each of the 

 coucave apices carryiug 3 spines, the central longest. Colour pale yellow. 

 mottled with small red spots. Gnathopod 2 in 9 , transverse rows of setae of b^^ 

 Joint appcar to want the hamate character conspicuous in C. sundevallii 

 (p. 418) (Norman). L. ö 13 mm. 



Distribution appears to be nearly the same as that of C. sundevallii (p. 418). 



29. Gen. Megaluropus Hoek 



1889 Megalonoura (Sp. uu.: M.agilis) (nom. nud.), (A.M.Norman in MS.) (A. 0. 

 Walker in:) Herdraan in: P. Liverp. biol. Soc, v.3 p. 39 | 1889 Megaluropus (Sp. un.: 

 M. agilis) (Megaloura A. M. Norman in MS.), (A. M. Norman in MS.) Hoek in: Tijdschr. 

 Nederl. dierk. Yer-, ser. 2 v.2 p. 197, 198 ! 1889 Megaluropus, A.M.Norman in: Ann. 

 nat. Hist., ser. 6 u 3 p. 446 | 1889 3/., Hoek in: Tijdschr. Nederl. dierk. Ver., ser. 2 v.2 

 p. 20O 1 1893 M., A. Della Valle in: F. Fl. Neapel, v. 20 p. 694. 



Head with small, acute rostrum and very prominent lateral lobes, un 

 which the eyes are placed. Anteuna l much shorter than antenna 2, accessory 

 flagellum very small. Upper lip broad, apically bilobed. Lower lip with 

 inner lobes. Mandible, maxillae 1 ar.d 2 and maxillipeds normal. Maxilla 1 

 with several setae on inner plate, 11 (?) spines on outer. Maxilla 2, inner 

 plate fringed on inner raargin. Gnathopod 1 simple; gnathopod 2 larger, 

 simple or feebly subchelate. Peraeopod 5 elongate, finger stiliform. üropod 

 3 much produced, rarai equal. membranaceous, apically rounded. Telson cleft 

 to the base. 



1 species. 



1. M. agilis Hoek 1889 M. a., (A. M. Norman in MS.) Hoek in: Tijdschr. Nederl. 

 dierk. Ver., ser. 2 v.2 p. 197, 260 t. 7 f. 7; t.8 f.3, 3d, f, 1; t. 9 f. 3g,h,i,k | 1889 M.a., 

 A.M.Norman in: Ann. nat. Hist.. ser. 6 r. 3 p. 446 1. 18 f. 1-10; t). 4 p. 123 1. 10 f. 15— 17 

 1893 M.a.. A. Della Valle in: F. Fl. Neapel, ».20 p. 695 t. 3 f. 9; t. 34 f. 1—17 j 1895 

 M. a., A. O. Walker in: P. Liverp. biol. Soc, i?. 9 p. 309 j 1890 Cheirocratus drechselii, 

 Meinert in: Udb. Hauchs, v.'d p. 170 t. 2 f. 48— 52. 



Pleon Segment 3 (and perhaps also 4 and 5) with bind margin dorsaUy 

 serrate. Head, rostrum reaching nearly middle of 1^ Joint of antenna 1, 

 lateral lobes rather broad, abruptly sharpened at apex, reaching much 

 beyond rostrum. Side-plate 1 a little widened distally, 2*^ larger, 3*^ irregularly 

 elliptic, with concave bind margin, 4*^ largest, scarcely emarginate. Pleon 

 Segment 3, postero-lateral corners quadrate, the postero-lateral margin 

 serrate, with a cilium between every 2 or 3 teeth. Eyes red, occupying all 

 but the apex of lateral lobes of head, and in the ö passing upward behind 

 base of antenna 1. Antenna 1 rather short, 1^* Joint not longer, and in ö 

 rather shorter than 2"^, 3'^ Joint very short, flagellum 6 — 8-jointed, with 

 sensory filameuts but without calceoli, accessory flagellum 2-jointed. Antenna 

 2, ultimate and penultimate joints of peduncle subequal, very long, flagellum 

 in Q with 8 joints, in ö with 16 joints, wbich are long and slender, without 

 calceoli or filaments. Gnathopod 1, 5*^ Joint oblong ovate, broader than 6*^, 

 which is of a tapering form, the long palm scarcely distinguislied from the 

 short bind margin, finger strong, curved. Gnathopod 2, 5*^ Joint in 9 longer 



