220 Acanthonotozoma, Pardaliscidae 



lateral corners bluntly produced. Side-plates 1 — 7 and postero-lateral corners 

 of pleon Segments 1 — 3, antennae 1 and 2, mouth-parts, gnathopods 1 and 2, 

 peraeopods 1 — 5, uropods 1 — 3 very similar to those of A. serratum (p.218), telsou 

 agTeeing rather with that of A. eristatum (p. 219). Eyes rouuded oval. Anteuua 1, 

 flagellum in Q scarcely as long as peduncle, 23-jointed; microscopic rudiment of 

 accessory flagellum. Upper lip less narrow thau in Sars' fig. of A. serratum. 

 Mandible, 3*^ Joint of palp much curved. Gnathopod 1, finger in addition to setae 

 like those in A. serratum having 11 backward directed teetli in correspondence 

 with A. eristatum and a stout curved nail. Gnathopod 2, finger stout, distally 

 fringed with 9 denticles, ending in a stout nail. Peraeopods 3 — 5, the 

 quadrangular 2'^ Joint less acute at lower hind corner than in A. serratum. 

 Uropod 3, outer ramus about ■*/. as long as inner. Telson l^/.^ as long as broad, 

 triangulär incision equal to 7^ of total length. L. 6*5 — 18-5 mm (measurement 

 made perhaps sometimes on specimens coiled up, sometimes on extended ones). 



Arctic Ocean (Greenland, Spitzbergen, Franz Joseph Land, Kara Sea, White 

 Sea, Matotschkin Schar). Depth 10— 300 m. 



17. Farn. Pardaliscidae 



1871 Subfam. Pardaliscinae, A. Boeck in: Forh. Selsk. Christian., 1870 p. 150 j 

 1882 Pardaliscidae, G. O. Sars in: Forh. Selsk. Christian., nr.l8 p.2S | 1888 P., T.Stebbing 

 in: Rep. Voy. Challenger, v.29 p. 990 1 1893 F., G. O. Sars, Crust. Norway, r. 1 p.401. 



Body not indurated. Head, rostrum usually small. Side-plates small, 

 4*'^ like 3'\ 5*^^ with front lobe the deeper. Eyes present or obsolete, 

 never(?) coalescent. Antenna 1 usually with accessory flagellum, which 

 is unlike in d and 9 . Mouth-parts projecting, strongly developed. Mandible 

 without molar (Fig. 56, 58, 60). Maxillipeds, inner plates small (Fig. 59). 

 Gnathopods \ and 2 subequal, either small and simple, or powerful and imper- 

 fectly subchelate (Fig. 57). Peraeopods 1 and 2 unlike peraeopods 3 — 5. which 

 are rather long, with 2'^ Joint little expanded. Uropod 3 rather large, rami 

 foliaceous. Telson deeply cleft. 



Marine. 



7 genera, 11 species accepted and 1 doubtful. 



Synopsis of genera: 



Antenna 1 without accessory flagellum . . 1. Gen. Halicoides ...]>. 221 

 Antenna 1 with accessory flagellum — 2. 

 Cutting edge of mandible (Fig. 56, 58, 60) 



greatly expanded — 3. 

 Cutting edge of mandible moderately ex- 

 panded — 6. 

 Gnathopods 1 and 2 (Fig. 57), 5th joiut much 



broader and longer than 6tli — 4. 

 Gnathopods 1 and 2, 5th joint not much 



broader or longer than 6*^ — 5. 

 Antenna 1 with short peduncle; maxillipeds 



(Fig. 59), outer plates broad 2. Gen. Pardaüsea . . . p. 221 



Antenna 1 with long peduncle; maxillipeds, 



outer plates narrow 3. Gen. Pardaliscoides . p. 224 



Gnathopods 1 and 2, 5th Joint broadly expanded 4. Gen. Nicippe p. 225 



Gnathopods 1 and 2, 5th joint not broadly 



expanded 5. Gen. Synopioides . . . p. 226 



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