48 Socarnoides, Menigrates 



of peduncle, flagellum „long and many (30 — 40) jointed", (number perhaps 

 varying on the two sides). Maxilla 1 (in figure) single-jointed. Maxillipeds, 

 outer plates large, apically rounded, 2 or 3 minute spines on inner margin 

 below the middle. üropod 3, inner ramus „short and quite rudimentary", 

 Telson doubtful. Colour nearly white. Integument very hard and brittle, 

 without any markings. L. 6 mm. — 9 unknown. 



Pirates Bay [Tasmaiiia]. In a rock-pool. 



28. Gen. Menigrates Boeck 



1871 Menigrates (Sp. un.: M. obtusifrons), A. Boeck in: Forh. Selsk. Christian., 

 1870 p. 113 I 1891 M., G. ü. Sars, Crust. Norway, v.l p.llO | 1894 M., T. Stebbing in: 

 Bijdr. Dierk., v. 17 p. 15. 



Body tumid, dorsally broad, side-plates rather large. Antennae 1 and 2, 

 d and 9 , short, with few-jointed flagella, longer in ö thanjn 9 . Antenna 1, 

 2^ and 3*^ joints of peduncle very short, P* Joint in each flagellum rather 

 long. Epistome not distinctly defined from upper lip. Lobes of lower 

 lip narrowly rounded, hind lobes little divergent. Mandible elongate, 

 cutting edge simple, molar weak, palp of moderate length, attached far 

 back. Maxilla 1, inner plate with 2 setae, outer obliquely truncate, carrying 

 11 spines, palp with 6 spine-teeth on the apex. Maxilla 2, inner plate 

 shorter than outer, obliquely truncate. Maxillipeds, inner plates well armed, 

 outer large, reaching beyond the rather short 2^ Joint of palp, 4^^ Joint of 

 palp small. Gnathopod 1 not subchelate, ß^^ Joint longer than 5*^^. Gnatho- 

 pod 2 elongate, subchelate. Peraeopods 3 — 5 short and robust, 2^ Joint 

 greatly expanded, especially in peraeopod 5. üropod 3 very small, quite 

 unarmed, outer ramus the longer, with small second Joint. Telson short 

 and broad, deeply incised, apices rounded. 



1 species. 



1. M. obtusifrons (Boeck) 1861 Anonyx 0., A. Boeck in: Forh. Skand. Naturf., 

 Mede 8 p. 643 ! 1871 Menigrates 0., A. Boeck in: Forh. Selsk. Christian., 1870 p. 114 | 

 1872 & 76 M. 0., A. Boeck, Skand. Arkt. Amphip., v.l t. 6 f. 2; v.2 p. 169 | 1891 M. 0., 

 G. 0. Sars, Crust. Norway, v.l p.lU t. 38 f . 1 | 1894 M. 0., T. Stebbing in: Bijdr. 

 Dierk., v. 17 p. 15 | 1865 Anonyx brachycercus -)- A. obtusifrons, W. Lilljeborg in: 

 N. Acta Soc. Upsal., ser. 3 v.ü nr. l p. 27 t. 4 f. 42 — 49; p. 32 | 1893 Ichnopus nugax 

 (part.), A. Della Valle in: F. Fl. Neapel, v.20 p. 804. 



Head, lateral corners somewhat produced and angular. Side-plate 4 

 little produced backward. Pleon segment 3, postero-lateral angles forming 

 a Short acutely upturned process. Eyes reniform, red. Antenna 1, 

 flagellum 8-jointed in 9, 13-jointed in d, accessory flagellum 4-jointed. 

 Antenna 2, flagellum 8-jointed in 9, 16-jointed in d ; in d the joints of 

 the flagella are broad, with large calceoli. Gnathopod 1 rather powerful, 

 6**^ Joint much longer than 5*^, slightly curved, tapering, 7*^ Joint strong, 

 curved. Gnathopod 2, 6*^ Joint half length of 5*^, oblong oval, scarcely 

 dilated distally. Peraeopods 3 — 5 with 2^ and 4*^ joints much expanded, 

 the 2^ most, the 4*^ least in the 5**1 pair. Colour pale yellowish with faint 

 reddish tinge in front. L. 13 mm. 



Arctic Ocean, North-Atlantic and North-Sea (West-Norway). Depth 36 — 183 m. 



