Paradexamine, Polycheria 519 



depressiou on 3*^, 4* and the coalesced Segments, tbe latter carrying 1 or 

 2 pairs of spines, and having the dorsal and lower apices acute on each side 

 of base of telson. Head, rostrum small, acute, slightly depressed, lateral 

 Corners produced into a small acute point. Side-plates of moderate size. 

 Pleon Segments 2 aud 3, postero-lateral corners acutely produced. Eyes 

 rectangular oval, remainiag dark in spirit. Antenna 1 long, 1^* Joint stout 

 (Thomson: with a tooth at the end), 2*^ varying from little longer to nearly 

 twice as long; flagellum with 40 — 50 joints, 1^*^ sometimes longer than 3*^ of 

 peduncle. Antenna 2 about -/^ length of antenna 1, slender, ultimate Joint of 

 peduncle about half as long as penultimate, flagellum with 25 — 30 joints, several 

 rather long. Upper lip with 2 hairy lobes, which fold one on the other (at 

 least when the lip is detached). Lower lip with principal lobes broad, the 

 mandibular processes not as usual produced backward, but represented only 

 by a small acute process directed forward. Mandible, cutting edge with a 

 straight piece ending in 3 teeth, accessory plate divided into many denticles, 

 spine-row of 2 or 3 very small spines, molar with slender spines fringing 

 one border of the right mandible, palp entirely wanting. Maxiila 1, inner 

 plate with 1 or 2 setules, outer plate with 11 spines, palp with about a 

 dozen flexible spines. Maxilla 2, inner plate shorter aud narrower than outer, 

 each with slender spines on oblique apex. Maxillipeds, inner plates of moderate 

 size, with many sleyder spines but seemingly without the 3 stout spine-teeth 

 commonly found on the apex, outer plates long, about reaching middle of 

 palp's 3'^ Joint, with spine-teeth on inner margin and slender spines on outer. 

 Gnathopods 1 and 2, 5*'* Joint longer than 6*^^, 6*'^ with row of spines along 

 inner surface, wideuing a little to palm, which is oblique, microscopically 

 pectinate, well defined by palmar spines, finger with subapical tooth. Gnatho- 

 pod 2 rather the longer. Peraeopods 1 and 2 slender, 5^^> Joint shorter than 4*^. 

 Peraeopod 3, 2'^ Joint broad oval, bind margiu smooth, 4^^ Joint longer and 

 5*^ shorter than 6^^. Peraeopod 4, 2*i Joint much narrowed below, 4*'» longer 

 than 5^\ b^^ longer than 6*'^ Peraeopod 5, 2*^ Joint much smaller than 

 in preceding peraeopods, narrowed below, 4*^ and 5*^ joints subequal; finger 

 curved, rather strong in all the peraeopods. üropod 1 rather long, outer 

 ramus little shorter than inner; uropod 2, outer ramus shorter than inner; 

 uropod 3, rami short, subequal. Telson reaching beyond uropod 3, deeply 

 cleft. L. reaching 8 mm. 



South-Pacific (New Zealand; Jei-vis Bay [East-Australia]). 



4. Gen. Polycheria Hasw. 



1879 Polycheria, Uaswell in: P. Liun. Soc. N. S. Wales, u 4 p. 345 | 1893 P., 

 A. DellaValle in: F. Fl. Neapel, r. 20 p. 579 | 1881 Polychiria, E. v. Martens in: Zool. 

 Rec, i'. 16 Crust. p. 31 ] 1882 Polycheria, Polychelia, G.M.Thomson in: Tr. N. Zealand 

 Inst., ».14 p. 238 | 1898 Polycheria, Polycharia, Calmarr in: Ann. N. York Ac, t). 11 

 p. 261, 268, 288. 



Agreeing with Tritaeta (p. 517), but distinguished as follows. Lower 

 lip with well formed inner lobes. Maxilla 1 with 2-jointed palp. Maxilli- 

 peds having a small distinct finger to the palp. Peraeopods 1 — 5 (Fig. 91 

 p. 520) having the 5^^ Joint linear and the 6^'^ expanded distally, to form a 

 distinct concave palm. Telson with acute apices. 



2 species. 



Synopsis of species: 



Side-plate 4, front lobe subacute LP. antarctica . p. 520 



Side-plate 4, front lobe short, blunt 2. P. tenmpes . . p. 520 



