Leipsuropus, Xenodice Ö99 



1. L. parasiticus (Hasw.) 1879 Cyrtophium parasiticum, Haswell in: P. Linn. 

 Soc. N. S. Wales, vA p. 274 1. 12 f. 1 | 1885 C. p., Haswell in: P. Linn. Soc. N. S. Wales, 

 V. 10 p. 107 t. 17 f. 1—7 1 1893 Platophium p. (part.). A. Della Valle in: V. Fl. Neapel, 

 r. 20 p. 335 I 1899 Cyrtopthiiim p., Leipsuropus, T. Stebbing in: Ann. nat. Hist., ser. 7 

 V. 3 p. 241. 



Body without medio-dorsal processes, laterally tuberculate, peraeon 

 dorsally ovate, widest at 4*'^ segment, divisiou betweeu segments 6 and 7 

 dorsally obscure, pleon segment 5 very short. Side-plates squared, with 

 rounded corner, 4*^ widest, sligbtly emarginate below. Eyes round, ratber 

 prominent. Antenna 1 elongate, slender, 1^* Joint scarcely half as long as 2*^, 

 3'^ a little sborter tban 2'^; flagellum as long as 2*^ Joint of peduncle, with 

 4 joiuts, 1^* rather louger tban tbe other 3, 3'^ louger tban 2«^ Antenna 2 

 longer and much stouter; ultimate Joint of peduncle rather longer tban 

 penultimate; flagellum as long as penultimate Joint of peduncle, 1 long 

 stout Joint with a minute terminal (Haswell: flagellum with traces of division 

 into 9 joints). Gnatbopod 1, 2<^ Joint sborter tban 5*^, 3*^ — 6*^^ setose on 

 bind margin, 5*^ broad except at base, 6*^'^ ratber sborter and narrower tban S*'^, 

 oval, bind margin extremely sbort, formiug an angle with tbe long, convex, 

 oblique palra ; finger long and strong, not quite reaching end of palm. Gnatbopod 2 

 in d, 2*1 Joint much sborter tban 6*^ 3"^ — h^^ very small, 6**^ powerful, 

 elongate, narrowest at base, front margin convex, bind nearly straight but 

 with a shallow emargination, variable in position, much or little or not at 

 all overlapped by tbe strong and long, smootb flnger; one of tbe poiuts of 

 tbe emargination much or little projecting, and perbaps to be regarded as 

 defining tbe palm from tbe straight bind raargin. Gnatbopod 2 in g (in figure), 

 6*^ Joint widening greatly to a nearly transverse, sligbtly sinuous, well defined 

 palm, matched by tbe finger. Peraeopods 1 — 5 of uniform structure, very 

 sligbtly arraed; 2*^ Joint sbort, not expanded, 4**^ Joint very sbort, h^^ stout, 

 longer tban tbe 2^. ratber sborter tban tbe 6*^; finger curved, acute. Pieo- 

 pods 1 — 3, peduncle of pleopod 1 with rectangular inner corners, peduncles 

 of 2*^ and 3*^ successively sborter, inner corners rounded, so that tbe inner 

 rarai are not contiguous to one another; coupliug spines 4 pairs; rami 7- or 

 8-jointed. üropod 1 slender; peduncle sligbtly overlapping telson ; outer ramus 

 sligbtly longer tban peduncle, nearly -/.j as long as inner, with spinules on 

 outer margin, inner with spinules on both raargins. üropod 3, tbe uarrowly 

 oval plates not reaching end of the obtusely pointed ovate telson. L. 4 — 5 mm. 



Port Jackson [East-AustraliaJ. 



4. Gen. Xenodice Boeck 



1871 Xenodice (Sp. un.: X. fmuenfeldti), A. Boeck in: Forh. Selsk. Christian., 

 1870 p.2(>6 i 1876 X., A. Boeck, Skand. Arkt. Amphip., v.2 p.665 | 1888 X, T. Stebbing 

 in: Rep. Voy. Challenger, ».29 p. 402 ! 1893 X, A. Della Valle in: F. Fl. Neapel, ».20 

 p. 318 j 1894 X, G. 0. Sars, Crust. Norway, i'.l p. 632 1895 Zenodice, A. 31. Norman 

 in: Ann. nat. Hist., ser. 6 u 15 p. 493. 



Body slender. Pleon segment 4 much longer tban o**» and 6*^ Head 

 produced over base of antenna 2. Side-plates small, subequal. Antennae 1 

 and 2 elongate; flagellum many-jointed; antenna 1 tbe longer, with accessory 

 flagellum. Upper lip faintly bilobed. Mandibular palp large; 3* Joint setose, 

 broad-ended. Maxilla 1, inner plate fringed with 7 or 8 setae. Maxiila 2, 

 inner plate with long row of setae fringing inner margin. Maxillipeds, outer 

 plates reaching much beyond small inner plates. Gnatbopods 1 and 2 not 

 very unequal, not much stronger in d tban in 9. Peraeopods 1 — 5 very 



