Synopioides, Pardallscella 227 



1. S. macronyx Stebb. 1888 S. m., T. Stebbing in: Rep. Voy. Challenger, 

 f. 29 p. 1000, 1223 t. 94 a I 1893 S. m., A. Della Valle in: F. Fl. Neapel, n20 p.852. 



Head apparently angled in front as in Synopia scheeleana (p.272). Side- 

 plates 5 and 6 broader than the preceding. Pleon segments 1 — 3, postero- 

 lateral angles acute, cMefly in segment 3. Eyes not perceived. Antenna 1, 

 1^* Joint Short, as long as 2"^ and 3*^ combined, flagellum in o 5 times 

 as long as peduncle, with 33 joints, 1^* very long, lirst 6 or 7 very stout, 

 then tapering, terminal 20 slender, the proximal joints armed with slender 

 spines and a large brush of long broad seusory filaments, accessory flagellum 

 with 3 joints, together as long as the first 8 of primary. Antenna 2 longer, 

 ultimate Joint of peduncle elongate, shorter than the spinöse penultimate, 

 flagellum longer than peduncle, with about 30 unequal joints. Trituratiug lobes 

 of stomach of peculiar character. Gnathopod 1, 5*'> Joint considerably shorter 

 than the long, narrow, slightly curved 6**^, finger about half 6*^^, setulose, 

 with tooth at base of the nail. Gnathopod 2, 5*^^ Joint rather stouter and longer 

 than the tapering 6*'\ both deusely furnished with setiform spines, some on the 

 5th of greatlength, finger more than ^a as long as Ö^h, nearly as in gnathopod 1. 

 Peraeopods 1 and 2 spinöse. Peraeopod 3, 2^ Joint oblong, not very wide, 

 6^'^ Joint straight, slender, finger needle-like. Peraeopod 5, 2*^^ Joint piriform, 

 very broad at the top. üropods 1 and 2, peduncle and rami very spinöse, in 

 uropod 1 peduncle subequal to the rami, in uropod 2 peduncle as long as the 

 shorter ramus, inner rather longer than rami of uropod 1. Uropod 3, peduncle 

 much shorter than the broad lanceolate rami, which are setose on inner margin, 

 outer the longer by the extent of its small 2*^ Joint. Telson about once and 

 a half as long as broad, cleft nearly to base, apices acute, bidentate, the inner 

 points rather divergent, the outer considerably produced. L. 10 mm. 



South-Pacific (lat. 38" S., long. 94" W.). Depth 2743 m. 



S.seeundus Stebb. 1888 S.S., T. Stebbing in: Rep. Voy. Challenger, v.29 p.l224. 

 Perhaps tke S of S. macronyx. L. 12 mm. 

 South-Pacific (lat. 39« S., long. 105*> W.). Depth 3703 m. 



6. Gen. Pardaliscella 0. Sars 



1893 Pardaliscella (Sp. un.: P. boeckii), Gr. 0. Sars, Crust. Norway, v.l p. 407. 



Body slender, cylindric, without dorsal processes. Head not rostrate. 

 Side-plates as in Pardalisca (p. 221). Antennae 1 and 2 in Q short, subequal, 

 accessory flagellum small. Lower lip, outer lobes small, separated by a 

 Single inner lobe. Mandible not very strong; as to cutting edge, accessory 

 plate and spiue-row similar to those of Pardalisca, but weaker, palp slender, 

 almost naked except at apex. Maxilla 1, inner plate with 1 seta, outer 

 with 6 spines, 2 very stout, apex of palp moderately expanded. Maxilla 2 

 with few setae, inner plate a little shorter and wider than outer. Maxillipeds, 

 inner plates conical, rather, not very, small, outer moderately broad, not 

 reachiug end of palp's 1^* Joint, palp of moderate size. Gnathopods 1 and 2 

 strouger than in Pardalisca, 5*^ joiut wider, scarcely longer than 6*^, which 

 narrows distally, finger simple, unguiform. Peraeopods 1 — 5 nearly as in 

 Pardalisca. üropods 1 and 2, rami neafly equal, with few spinules; uropod 3, 

 rami equal in leng-th, quite naked, outer the naiTOwer, with small 2*^ Joint. 

 Telson unarmed, deeply cleft. 



2 species. 



16* 



