324 Epimeria, Paramphithoe 



white variegated by a peculiar, very pretty shade of chocolate brown (T. Scott, 

 MS.). L. reaching IG mm. 



North-Atlantic and ISTorth-Sea (West-Norway, depth 282—376 m; Ailsa Craig in 

 Firth of Clyde). 



2. Gen. Paramphithoe Bruz. 



1835 Acanthosoma (Sp. un.: A.hystrix) (non J. Curtis 1824, Hemiptera!), (Rieh. 

 Owen in MS.) J. C. Ross in: JohnRoss, App. sec. Voy., nat. Hist. p. 91 j 1859 Param- 

 phithoe (part.), R. 31. Bruzelius in: Svenska Ak. Handl., n. ser. z). 3 nr. 1 p. 68 | 1871 

 Acanthozone (Sp. un.: A. cuspidata), A. Boeck in: Forh. Selsk. Christian., 1870 p. 184 

 1893 A., G. 0. Sars, Crust. Xorway. r. 1 p. 369 | 1893 A. (part), A. DellaValle in: 

 F. Fl. Neapel, n 20 p. 599 | 1894 A., T. Stebbing in: Bijdr. Dierk., v. 17 p. 29. 



Body iiidurated, beset witli acute processes. Head, rostrimi very small. 

 post-antennal coruers spiniform. Side-plates 1 — 3, 6 and 7 forming one 

 acute lobe, 4*^' and 5*1^ with 2 acute lobes. Eyes prominent. Antenna 2 

 elongate. Upper lip apically narrow, slightly insinuate, synimetiical. Lower 

 lip with well formed inner plates coalescent on their outer niargins with the 

 outer plates. Mandible powerful, all parts normal, cutting plates bluutly 

 dentate, spine-row of about 15 slender spines, 3*^ Joint of palp shorter than 2'^ 

 Maxilla 1 with about 10 setae ,on inner plate, 11 spines on outer. Maxilla 2, 

 inner plate fringed along much of inner margin, rather shorter and narrower 

 than outer. Maxillipeds, inner and outer plates rather broad. outer closely 

 fringed with spines on apical margin, 2'^ Joint of palp much the longest, 

 finger small. Gnathopods 1 and 2 rather feeble, narrow, h^^ Joint shorter 

 than 6*^, finger small. Peraeopods 3—5, 2^ Joint with acute processes on 

 bind margin. üropod 2, rami unequal, shorter than in uropods 1 and 3; 

 uropod 3, rami long, lanceolate. Telson rather elongate and boat-shaped. 



3 accepted .species, 1 doubtful. 



Synopsis of accepted s]»ecies: 



j Rostruin elongate 1. P. buchholzi . . . p. 324 



\ Rostruni short — 2. 



, Peraeon segnients 1 — 4 with elevated tooth on 



J hind niargin . . . ^. 2. P. hystrix . . . . p. 325 



• \ Peraeon segmerits 1 — 4 without elevated tooth on 



' hind margin 3. P. polyacantha . p. 325 



1. P. buchholzi (Stebb.) 1874 Acanthozone hystrix (err., non Acanthosoma h. 

 .1. C. Ross 1835!). Ruchholz in: Zweite D. Nordpolarf., v.2 p. 362 Crust. t. 11 I 1888 

 A. buchholzi, T. Stebbing in: Rep. Voy. Challenger, «.29 p. 162, 467 j 1894 .4. b., 

 T. Stebbing in: Bijdr. Dierk., v.ll p. 31 j 1893 A. cuspidata (part.), A. DellaValle in: 

 F. Fl. Neapel, r. 20 p. 613. 



Peraeon segment 1 with 7 acute processes in front, the medio-dorsal 

 largest, pointing upward and forward, and 5 on hind margin ; segments 2 — 7 

 with 5 processes of hind margin. those on segments 5 — 7 pointing backward, 

 the middle one with a subsidiary tooth near the top. Pleon segments 1 — 3 

 with a similar central process, and on either side of it in segment 1 with 4 

 Sharp processes on the liind margin, in segment 2 with 6, in segment 3 with 3 ; 

 segment 4 has a central lobe not acutely produced and at the postero- 

 lateral corners a sharp process, which is repeated on segment 5. Head. 

 rostrum straight, pointing slightly upward, OYerlapping 1^* Joint of antenna 1, 



