Nototropis 331 



definite palm. Peraeopods 1 — 5, 5^'^ Joint shorter than 6*^, fiiiger small. 

 Peraeopods 3 —5, 2^ Joint with subacutely produced lower bind corner 

 (production veiy slight in peraeopod 4), finger reversed; in peraeopods 3 

 and 4 front margin of 2^ Joint setose, in peraeopod 5 2^ joint broadly 

 oval, üropod 3, rami niore than twice as long as peduncle. Telson rather 

 longer than broad, cleft nearly to base, apices truncate, each with a spinale. 

 Colour pellucid, whitish, with small patches of chestnut-brown. L. 98 mm, d 

 rather less (Sars), adult d and 9 4 — 9-5 mm (Walker). 



Arctic Ocean, North-Allantic and Mediterranean (Europe from Vadsö [Finmark] 

 round to Naples, also at the Azores). From between tide-marks to 37 m. 



3. N. vedloraensis (Bäte & Westw.) 1862 Dexamine v., Bäte & Westwood, 

 Brit. sess. Crust., vA p.242 f. | 1871 Atijlusv., A. Boeck in: Forh. Selsk. Christian., 1870 

 p. 192 I 1876 Ä. V., A. Boeck, Skaud. Arkt. Amphip., v.2 p. 330 t.9 f. 9; 1. 11 f. 6 [ 1893 

 Paratylus v., G. 0. Sars, Crust. Norway, v.\ p.4ß6 1. 164 f. 2 | 1866 Atylus eostae, Cam. 

 Heller in: Denk. Ak. Wien., ■j;.26n p. 31 ; 1893 Dexamine spinosa (part.), A.Della Valle 

 in: F. Fl. Neapel, r. 20 p. 579. 



Body slender, very distinctly carinate, peraeon segment 7 and pleon 

 Segments 1 — 3, as well as the 4*^ produced to compressed acute dorsal 

 teeth, the following composite segment being apparently smooth, though with 

 slight dorsal depression. Head, rostrum rather prominent, lateral margin 

 bilobate, upper lobe acute, lower rounded, post-antennal corners not 

 produced. Side-plates 1 and 2 slightly tapering, 3*^ and 4*'^ broader, not 

 very uuequal. Pleon segment 3, postero-lateral corners rotundo-quadrate 

 with obsolete point. Eyes small, oval, dark brown with whitish coating 

 {Sars; perhaps ouly applying to 9). Antenna 1 in 9 mueh more than ^s 

 as long as body, 1^* Joint thicker than 2^, scarcely as long, produced to a 

 ^enticle varying from obtuse to acute, 3*^ Joint rather small, flagellum rather 

 longer than peduncle, about 28-jointed. Antenna 2 in 9 longer, ultimate Joint 

 of peduncle longer than penultimate, flagellum about as long as peduncle. 

 In d antennae 1 and 2 attain gi'eater length, 2^ Joint of peduncle of antenna 1 

 and ultimate Joint of peduncle of antenna 2 being more elougate than in 9 . 

 Gnathopods 1 and 2, peraeopods 1 and 2, uropods 1 — 3 and telson nearly as in 

 N. swammerdamei, but gnathopods 1 and 2 rather more slender. Peraeo- 

 pods 3 — o, 5*'i Joint much longer than 6*^ finger recurved. Peraeopod 3, 

 2^ Joint in 9 uncinately produced at lower bind apex. Peraeopod 5, 2^ Joint 

 very broad, lower bind corner rather sharply produced. Branchial vesicles 

 not pleated. Colour seraipellucid, yellowish, with a row of rounded orange 

 Spots along the back; sides, antennae, legs streaked and mottled with orange, 

 mouth-parts and uropods tinged with dark brown; ova in pouch bluish-green. 

 L. 9 8 mm. 



North-Atlantic, North-Sea and Skagerrak (South — and West-Norvvay, depth 

 19 — 94 ra; Shetland Islands and southvvard to France); Kattegat. 



4. N. guttatus (A. Costa) 1851 Acanthonotus g., Amphithonotus? g., (A. Costa in:) 

 F. W. Hope, Cat. Crost. Ital., p. 46 | 1857 Nototropis g., A. Costa in: Mein. Acc. Napoli, 

 r. 1 p. 194 t. 1 f. 7 I 1885 Amphitonotus g., J. V. Carus, Prodr. F. Medit., v.l p. 408 ( 

 ?1853 Notrotopis spinulicauda, A.Costa in: Kend. Soc. Borbon., n. ser. v.2 p. 173 | 

 ?1857 Nototropis s., A.Costa in: Mem. Acc. Napoli, v.l p. 194 1. 1 f. 8 | 1893 Dexamine 

 epinosa (part.), A.Della Valle in: F. Fl. Neapel, v. 20 p. 573 ] ?189.5 Atylus andrusowi, 

 Sowinski in: Mem. Soc. Kiew, t;. 14 t. 4 f. 7 — 14. 



In general appearance strikingly in agreement with N. vedlomensis, 

 but clearly distinct. The composite pleon segment ends in a well marked 



