28 Onisimus, Cyphocaris 



Peraeopods 3 — 5, 4*^'' Joint moderately broad. Uropod 3 witli spinules on 

 both rami and setae on outer of ö. Telsou scarcely longer than broad, 

 distally somewhat narrowed, with a minute indent on eacli side of the 

 shallow central emargination. L. 9 29, ö 26*o mm. 



Arctic ücean. J^opth 94 — 143 m. 



7. O. leueopis (O. Sars) 1879 Anonyx (0.) l., G. 0. Sars in: Arch. Naturv. 

 Kristian.. vA p.4iJ8 | 1885 0. Z., (1.0. Sars in: Norske Nordhavs-Exp., i'. HCrust. I p. 149 

 t. 13 f. 1, 1 a ! 1882 Onesimus l., Hoek in: Niederl. Arch. Zool., suppl. 1 nr. 7 i). 45 | 

 1893 Anonyx edicardsii (part), A. 13ella Valle in: F. Fl. Neapel, r. 20 p. 828. 



Head, lateral angles somewhat produced and pointed. Side-plate l 

 considerably expanded below, 4**^ scarcely at all. Pleon segmeut 3, postero- 

 lateral angles acute, very siightly produced, not upturned. Eyes very sraall, 

 imperfect, placed near lateral lobes of head, colour light, well-nigh lacteal. 

 Antenna 1, flagellum with 11 joints. P* rather large, accessory flagellum long, 

 4-jointed. Antenna 2, flagellum rather long. 16-jointed. Mouth-organs 

 undescribed. Gnathopods 1 and 2, supposed to reserable those ot 0. turgidus 

 (p. 26). Peraeopods 3 — 5, 4^'' Joint rather short and thick. Uropod 3 without 

 spinules. Telson short and broad, with centi*al emargination. Colour whitish,^ 

 semi-translucent. li. 10 mm. 



North- Atlantic (between Iceland and Norway). Depth 1520 m. 



8. O. afflnis H. .1. Hansen 1886 0. a., H. .1. Hansen in: Dijniphna Udb., 

 p.216 t.2I f. 9, 9a j ?1894 0. brevicaudafus (part.), T. Stebbing in: Bijdr. Dierk.. ?;. 17 

 p. 13 ! 1893 Pseudalibrotus littornlis (err., non Anonyx l. Kroyer 1845!) (part.), A. Della 

 Valle in : F. Fl. Neapel, v. 20 p. 799. 



Head, lateral angles siightly projecting, rounded. Side-plate 1 rather 

 expanded below, 4*'^ with hinder expansion short. obtusely truncated. Pleon 

 Segment 3, postero-latenil angles produced to an upturned rather blunt 

 process. Eyes short, somewhat triangulär as in 0. caricus (p. 27). Autennae, gnatho- 

 pod 1, peraeopods much as in 0. edwardsii (p. 25). Gnathopod 2 almost as in 

 0. brevicaudatus d, d^^ Joint broader than in 0. edwardsii, not twice as long 

 as broad, bind margin rather longer than front, a minute cavity between 

 siightly outdrawn palm and the fiuger. Telson very little longer than broad, 

 narrowing a little from base to apex, the latter subtruncate. in the middle 

 a little emarginate with an indent on each side. Specimen not adult. 

 L. 13'5 mm. 



Kara Sea. Depth 54 ni. 



15. Gen. Cyphocaris Boeck 



1871 Cyphocaris (Sp. un.: C. anonyx)^ (Lütken in MS.) A. Boeck in: Forh. Selsk. 

 Christian., 1870 p. 103 | 1872 C, A. Boeck, Skand. 

 Arkt. Amphip., vA p. 140 | 1888 C, T. Stebbing in: 

 Kep.Yoy. Challenger, f. 29 p. 656 | 1893 €., J. Bonnier 

 in: Bull. sei. France Belgique, u 24 p. 174 | 1893 C, 

 A. Della Valle in: F. Fl. Neapel, v. 20 p. 846. 



Head directed downward beneatli the large 



Segment 1 of peraeon (Fig. 6). Side-plates 1, 2 



and 3 very small, 4 and 5 large. Pleon segraents 



large. Eyes none or unknown. Epistorae not 



. ^ projecting in front of upper iip. Mandible, molar 



Lateral view. prominent, denticulate, palp affixed above it, large, 



