Sophrosyne 21 



11. Geu. Sophrosyne Stebb. 



1888 Sophrosyne (Sp. un.: S. rnurrayi), T. Stebbing- ia : Rep. Voy. ('hallender, 

 f. 29 |). 652 I 1891 S., T. Stebbing & 1). Robertson in: Tr. zool. Soc. London, c. 13i 

 p. 31 ; 1893 S., A. Della Valle in: F. Fl. Neapel, c. '.^0 p. 795 | 1899 Paropisa (Sp. typ.: 

 Opisd Jiispana), '\ . Sitelibino- in: Ann. nat. Hist.. scr. 7 (.4 j». 206. 



Maiidible. molar waiiting, palp affixed fav forward. 2*^ and 3'^ joiuts 

 subeqiial. Maxiila 1, inner plate small, with 1 seta, outer plate feebly arraed, 

 palp with few spine-teeth. Maxiila 2, inner plate much shorter than outer, 

 neither strongly setose. Maxillipeds slender, inner and outer plates very small, 

 thc palp elongate. Gnatliopod 1 robust, 5*^'^ Joint triangulär, soraewhat 

 produced, H"^ broadly oblong, produced into a sharp tooth, opposed to the 

 ratlier powerful linger almost cbelately. Gnathopod 2 subchelate. Peraeopods, 

 7*11 JQJjjt rather elongate. 2^ Joint broad in peraeopods 3 — 5. Cropod 3, 

 rami unarmed, the inner very little shorter than the outer. Telson not very 

 elongate, partially cleft. 



3 spccies. 



Synopsis of species: 



/ Peraeopod 5, bind margin of 2^ Joint produced 



) downward 3. S. hispana ...[). 22 



I Peraeopod 5, bind margin of 2<1 Joint not produced 

 ' downward — 2. , 



j Telson cleft beyond the centro 1. S. rnurrayi . . . p. 21 



] Telson not ckft to the centre 2. S. robertsoni . . p. 21 



1. S. rnurrayi Stebb. 1888 S. m., T. Stebbing in: Rep. Voy. Challenoer. r. 29 

 p. 652 t. 15 1893 S. /«., A. Della Valle in: F. Fl. Neapel, v. 20 p. 795 t. 60 f. 3!^. 



Pleon Segment 3, postero-lateral angles acutely upturned. back with a 

 pair of humps and distally squared. segment 4 abruptly narrower. Antenna 1, 

 1^* Joint rather elongate, 2*^ longer than the P* Joint of the 7-jointed 

 flagellum, accessory flagellum 4-jointed. Antenna 2, ultimate Joint of peduncle 

 shorter than penultimate, flagellum 8-jointed. Maxillipeds, inner plates not quite 

 reaching base of palp. Gnathopod 1, 3*^, 4*^ and 5*^^ joints strongly and 

 densely spined along the bind margin, palm ofB**' Joint spinulose. Gnathopod 2, 

 6*^^ Joint more than half as long as 5*'', distally widened, with concave palm, 

 finger curved. Uropod 3, rami short, the inner a little shorter than the outer. 

 Telson as broad as long, cleft dehiscent, not quite % of the length, apices 

 broadly rounded. L. 9 about 13 mm. 



Christmas Harbour [Kerguelen Island]. 



2. S. robertsoni Stebb. & D. Roberts. 1891 S. r., T. Stebbing & D. Robertson 

 in: Tr. zool. Soc. London, i;.13i p.31 t.ÖA ] 1893 -S. r., A. Della Valle in: F. Fl. Neapel, 

 V. 20 p. 795. 



Pleon segment 3, postero-lateral angles acutely upturned, back arched, 

 not distally squared, segment 4 with 3 little dorsal humps. Antenna 1, 

 1^*- Joint rather tumid, 2* longer than the short 1^* Joint of the 6-jointed 

 flagellum, accessory flagellum 3-jointed. Antenna 2, ultimate Joint of peduncle 

 shorter than penultimate, flagellum 8-jointed. Maxillipeds. inner plates not 

 nearly reaching base of palp. Gnathopod 1 as in S. murrayi, but more feebly 

 armed. Gnathopod 2, 6*'» Joint narrow just at the base, but thence of uniform 



