Tmftonyx, Tryphosites 77 



large, accessory flagellum with 4 joints, 1^* long. Epistome scarcely projecting 

 in front of upper lip, biit defined from it by distinct incision, Gnathopod 1, 

 3*^ Joint less elongate than in other species, 6^^ Joint as long as 5^^, palm 

 very oblique, finely denticulate, defined by obtuse angle. Gnathopod 2, 

 6*'i Joint oblong oval, more than half as long as 5*^, palm transverse. 

 Peraeopods rather slender, 7*'^ Joint long and narrow. Peraeopod 5, 2^ Joint 

 very large, as long as rest of limb. üropod 3, rami naiTow, mucroniform, 

 witliout the marginal setae found in the other species, the outer the longer, 

 with spiniform 2*^ Joint. Telson not nearly twice as long as broad, deeply 

 cleft, with 1 or 2 pairs of dorsal spinules. Body pellucid whitish, unpigmented. 

 L. Q 5 mm. 



Trondhjemsfjord. Depth about 280 m. 



46. Gen. Tryphosites 0. Sars 



1871 Tryphosa (part.), A. Boeck in: Forh. Selsk. Christian., 1870 p. 117 | 1891 

 Tryphosites (Sp. typ.: Anonyx longipes), G. 0. Sars, Crust. Norway, v.l p. 81. 



Side-plate 1 of uniform width. Pleon segment 3, postero-lateral angles 

 acutely upturned. Antenna 1, accessory flagellum rather small, antennae 1 

 and 2 subequal in Q , antenna 1 in d long, antenna 2 very long. PJpistome 

 produced into an acutely lanceolate process. Mandible with prominent 

 molar, palp slender, affixed scarcely behind it. Maxilla 1, inner plate not 

 veiy Short, otherwise as in Tryphosa (p. 68). Maxilla 2, plates moderately wide, 

 inner plate a little the shorter. Maxillipeds, outer plates large, reaching much 

 beyond 2** Joint of palp, fringed with small spine-teeth. Gnathopod 1 slender, 

 subchelate, 6**^ Joint shorter than 5*^. Gnathopod 2 slender, subchelate, 

 6*^ Joint nearly fusiform, much more than half length of linear 5^\ Peraeo- 

 pods slender, long. Peraeopods 3 — 5, 2*^ Joint much expanded. Uropod 2, 

 inner brauch constricted. üropod 3 rather large, inner ramus a little longef 

 than basal Joint of outer, both canying spinules and setae in both sexes. 

 Telson deeply cleft. 



1 species. 



1. T. longipes (Bäte & Westw.) 1861 Anonyx l. -{- A. ampulla (err., non 

 Cancer a. Phipps 1774!), Bäte & Westwood, Brit. sess. Crust., v.l p. 113 f.; p. 116 f. | 

 1862 A. l. + A.a., Bäte, Cat. Amphip. Brit. Mus., p. 79 t. 13 f . 4, 5 | 1871 Tryphosa l, 

 A. Boeck in: Forh. Selsk. Christian., 1870 p. 118 | 1891 Tryphosites l, G. 0. Sars, Crust. 

 Norway, v.l p.81 t.28 f. 3; t.29 f.l ] 1893 Anonyx l, A. Della Valle in: F. Fl. Neapel, 

 n20 p.830. 



Head, lateral angles a little produced, acute. Side-plate 5 much 

 brwider than deep. Pleon segment 4 with no dorsal protection. Eyes oval, 

 not very large, light red. Antenna 1 in Q , flagellum with 18 joints, 1^* very large, 

 accessory flagellum 5-jointed; flagellum in d 30-jointed. Antenna 2, pen- 

 ultimate Joint of peduncle rather expanded, flagellum in Q 15-jointed, in ö 

 filiform, longer than the body. Gnathopod 1, 6**^ Joint of uniform width, palm 

 slightly oblique. Peraeopods 1 and 2 very setose on bind margin. Telson 

 only slightly tapering, can-ying 3 pairs of marginal spinules and 3 pairs 

 on the truncate apices. Body whitish pellucid. L. 12 mm. 



Arctic Ücean, North-Atlantic, North-Sea, Skagerrak, Kattegat and Baltic (Norway, 

 Denmark, Great Britain, West-France); Mediterranean. 



