Kalirages. Loptamphopus 29'6 



H. megalops (Buchh.) 1874 Paramphithoii m., Buchholz in: Zweite D. ^'ord- 

 polarf., V.2 p. 369 Crust. t. .12 | 1893 Acanthozone fulvoc'mcta (part). A. DellaValle iu: 

 F. Fl. Neapel, i'. 20 p, 614. 



Strongly separatcd tVdin the uemis ilalirages by thc iioii-dentated segmeiits. 

 the long rostrum, short 3'1 Joint nf mandibulai- ])alp and suiall size; but in otlic-r 

 rospocts close tu H. l'ulvocinctus (p. 291). Also like. but not reconcilable with Aphenisa 

 megalops (p. 306). \j. "> — 7 mm. 



Arctic < >c.>;iii iSaliiiu' IsIüihI. ( ipi-iiuini.-i riai-limii-. Shannon). ])e]_)th ]9 m. 



6. Gen. Leptaniphopus u. Suis 



1880 Fanoploea (part.i. (i. M. Tliojiisun in: .\nn. nat. llist.. st*i-. ."> /■. (; p, li \s\r.; 

 Leptamphopus (8p. un.: L. longimanus). (i. 0. Sar.s, Crust. Xorway. /■. ! [>. 458. 



Body not acutely deutate. Head, rostruiii not very projioiinced. Side-plato.s 

 of moderate size, 4*ii the largest, distinctly emarginate. Antennae 1 and 2 

 elongate, antenna 1 tlie lougev. no accessory flagelhim. Upper lip rounded. 

 Lower lip witliout inner lobes. Mandible. cutting edge much produced, molar 

 large, palp moderate. Maxiila 1, inner plate fringed witli nuiiiv setac 

 outer with spines very closely set, palp rather elongate, Maxiila 2, innen' 

 plate fringed on inner margin, botli plates with the apex densely fringed. 

 Maxillipeds not very large, outer plates not reaching end of palp"s 2'^ Joint, 

 fringed with spine-teeth on inner margin, palp comparatively small. Gnatho- 

 pods ] and 2 slender, unequal. the '2^ much the longer, 6*^^ Joint nearl\ 

 linear, palm very short and nearly transverse. Peraeopods 3 — 5. 2^* Joint 

 oval. Uropod 3, rami narrow, unequal. Telson entire. 



2 species. 



Synopsis of .spei-ie.s: 



Neue of the segments dorsally produced I . L. longimanvis . . . . p. 293 



Peraeon segment 7 and pleon segments 1 and 2 



dorsally produced 2. L. novaezealandiae . . p 294 



1. Ij. longimanus (Boeck) InTI Amphithopsis longitnana, A. Boeck in: Forli. 

 Selsk. Christian., 1870 p. 200 | 1876 A. /., A. Boeck, Skand. Arkt. Amphip., v.2 p. 3.33 

 t. 22 f. 2 i 1893 Leptamphopus longimanus, G. ü. Sars, Crust. Norway, v. 1 p. 459 t. 162 | 

 1893 Acanthozone longimana (part.), A. DcUaYalle in: F. Fl. Neapel, i-.20 p.604 t. 59 I. ](>. 



Body slender, back evenly rounded. Head. rostral projection very small. 

 lateral corners detined below by a small notch. i)ost-antennal corners formiug 

 a triangulär lobe. Pleon segments 2 and 3. postero-lateral corners sub- 

 (juadrate. Eyes faintly tracea1)le in spirit. Antenna 1 in 9 nearly as lonu 

 as body, 1*** Joint subequal to 2*^ and 3^^ roiiibined, Jlagellura slender, alH>ut 

 5 times as long as peduncle. Antenna 2 much shorter, ultimate Joint of 

 peduncle longer than penultimate. flagellum not quite twice as long as {»eduncle. 

 Mandible, said to have uo accessory ])late on right mandible. Gnathopod 1. 

 5^^ Joint somewhat widened distally, forming a short setose lobe, 6^'' as 

 long as 5*^ but much narrower. sublinear, fringed behind with fascicles of 

 setules, finger exceedingly small, Gnathopod 2 much Inngcr, 3*^^ Joint not 

 twice as long as broad, ö*^^ and 6^'' joints subequal, very long and narrow, 

 fringed behind with setules. tinger very small. Peraeopods 1 — 5 slender 

 and brittle. Peraeopods 3 — 5. 2** Joint oblong oval, bind mai'gin perfectiy 

 smooth, that of peraeopod 5 much the largest. üropod 1 much larger 

 than uropod 2: uropod 3 reaching about to apex of uropod 2, outer ramus 



