Phoxocephalus 135 



the base, naiTOwing distally, with 2 spinules and a setule on each rounded 

 apex. Colour (rather variable) light buff changing to orange, with opaque 

 whitish shadows. L. 7 mm. 



Arctic Ocean; North - Atlantic, North -Sea, Skagerrak, Kattegat and Baltic 

 (Scandinavia, Great Britain, France, North- America). Sandy bottom, depth 38 — 94 m. 



2. P. bassi Stebb. 1888 P.b., Phoxusb., T. Stebbing in: Kep. Voy. Challenger, 

 i;.29 p. 811 t. 54| 1893 Phoxocephalus h., A.DellaValle in: F. Fl. Neapel, u 20 p. 743. 



o unknown. — d. Hood with narrowly rounded apex, postero-anteunal 

 Corners subquadrate. Side-plate 1 well expanded below, with 14 setae, 2^ — 4* 

 with about 10 setae, 4*^ pair nearly quadrate, but a little deeper than broad, 

 o^'^ with bind lobe little deeper than front, Pleou segment 3, postero-lateral 

 angles rounded, segment 4 dorsally impressed. Eyes large, irregularly 

 quadrate, dark in spirit. Antenna 1, flagellum 8-jointed, with calceoli, accessory 

 fiagellum 5-jointed. Antenna 2, calceoli on ultimate Joint of peduncle, flagellum 

 37-jointed, nearly reaching end of body. Mandible, 3 spines in spine-row, 

 molar small, but strongly dentate. Maxiila 1, outer plate with 9 spines. 

 Maxillipeds, 6 spine-teeth on margin of outer plates. Gnathopod 1, 5*^ Joint 

 triangulär, nearly as long as 6*^ 6*^ oblong, twice as long as broad. palm 

 convex, only slightly oblique, the finger with a membranous cap over the 

 tip. Gnathopod 2 much larger, 5**^ Joint small, with the 4*^ forming a cup 

 for the band or 6*^ Joint, which is as broad as long, slightly widened at 

 the palm, the palmar tooth strong. Peraeopods 1 and 2. spines at apex of 5*^ 

 Joint nearly as long as 6**^ Joint, finger small. Peraeopods 3 — 5 and iiropods 1 — 3 

 nearly as in P. holbölli. Telson much louger than broad, scarcely tapering, 

 cleft almost to the base, 1 spinule and 1 setule on each apex. L. 10 mm. 



Bass Strait. Snrface. 



3. P. kergueleni Stebb. 1888 P. k., Phoxus k., T. Stebbing in: Rep. Voy. 

 Challenger, k. 29 .p. 816 t. 55 | 1893 Phoxocephalus k., A.DellaValle in: F. Fl. Neapel, 

 V. 20 p. 742. 



Hood with tolerably acute apex. Side-plate 1 a little expanded below, 

 with 5 setae on lower margin. 4*^ little deeper than broad, bind margin 

 oonvex, oblique, 5**^ with bind lobe much deeper than front. Pleon segment 3, 

 postero-lateral angles rounded. P^yes small, distant, not dark in spirit. 

 Antenna 1, flagellum 5-, accessory flagellum 3-jointed. Antenna 2, ultimate Joint 

 of peduncle half length of penultimate in d, more than half in 9 , flagellum in 9 

 with 5 joints, in young ö without calceoli with 15 rather stout joiuts. Mandible, 

 3 spines in spine-row, molar strongly dentate, 3*^ Joint of palp shorter than 

 2*^ in o, equal to it in ö. Maxiila 1, outer plate apparently with only 

 7 spines. Maxillipeds, outer plates with 3 spine-teeth. Gnathopod 1, ö*^ Joint 

 much shorter than (j^^, which is oblong, rauch broader than half the length, 

 palm convex, slightly oblique. Gnathopod 2, 4*^ -and 5*^ joints short, side 

 by side, 6*** much as in gnatbopod 1, but much larger both in 9 and d, 

 the palm more oblique and palmar tooth stronger. Peraeopods 1 and 2, apical 

 spine on 5*** Joint longer than G^*^ Joint. Peraeopod 3, 2*^ Joint as broad 

 below as above. Peraeopod 5, 2^ Joint very broad, longer than rest of 

 limb, bind margin slightly serrate, descendiug below the 4*** Joint. Uropod 3 

 in young d. inner ramus longer than 1^* Joint of outer, 2*^ Joint of outer 

 half length of 1^*. Telson not greatly longer than broad, not cleft to the 

 base but beyond the middle, with a long spine at each broad apex. L. 5 mm. 



Cumberland Bay [Kerguelen Island]. Depth 226 m. 



