Stenothoe 197 



Uody slender. Head, lateral corners augular. Side-plate 3 distally widened, 

 4"' scarcely as wide as 2*^ and 3^ combined. Pleou segmeut 3, postero-lateral 

 Corners triangularly produced. Eyes large, round, imperfectly developed, liglit 

 red. Anteuuae 1 and 2 long, slender, subequal, more thau half lengtli of body. 

 Aiitenna 1. 2*^ Joint longer than 1^*, flagelium about twice as long as peduncle. 

 21-jointed. Antenna 2, ultimate and penultimate joints of peduncle subequal, 

 fiagellum about 11-jointed. Gnathopod 1 small, 4**^ Joint produced about to apex 

 of o^'S 6*'* scarcely broader than ö^^K Gnathopod 2 in ö, 6^^ Joint narrow 

 oblong, palm undefined, concave, pubescent, distally deutate and incised almost 

 at right angles to the length, finger long, powerful, concave margin hairy; 

 in o 6*^ Joint somewhat tapering, palm ii-regularly serrated, tinger and band 

 Icss powerful than in ö. Peraeopods 1 — 5 long and slender, none of the 

 joints expanded, except 2"^ in peraeopod 4 narrow oval and in peraeopod 5 

 broad ^val. Uropod 3, peduncle much longer than ramus; armed with 8 spiues, 

 jdints of ramus equal. Telson oblong oval, nearly twice as long as broad, 

 ol)tu.sely pointed, 3 spines on each side. Colour whitish, banded irregularly 

 with patches of light red; ova violet. L. q 5*5 mm. 



Xorth-Atlantic and North-Sea (West-Norway). Depth 150—282 m. 



10. S. megacheir (Boeck) 1871 Metopa m., A. Boeck in: Forh. Selsk. Christian., 

 1H70 ).. 14B I 187« M. m., A. Boeck, Skaud. Arkt. Amphip., v.2 p. 462 t. 18 f. 1 | 1892 

 Stenothoe m., (t. O. Sars, Crust. Norway, v. 1 p. 242 t. 83. 



Body slender. Head, lateral corners bluntly augular. Side-plate 3 distally 

 widened. 4:^^ scarcely as wide as 2^^ and 3^ combined. Pleon segment 3. postero- 

 lateral corners triangularly produced. Eyes large, round, indistinctly developed, 

 light yellowish red. Antennae 1 and 2 extremely long and slender. Antenna 1 

 as long as body, 2'^ Joint of peduncle longer than l'*^ flagelium filiform, twice 

 as long as peduncle. Antenna 2 in o a little shorter, in d a little longer 

 than antenna 1, ultimate and penultimate joints of peduncle subequal, very 

 b>ng. flagelium much shorter than either. Maxillipeds very slender and elongated. 

 Gnathopod 1 small and feeble, 4^^^ Joint not quite produced to apex of 5^^ 

 C' not longer and scarcely broader thau 5*^. Gnathopod 2, large and 

 powerful, especially in d, 6^^ Joint oblong oval, palm long, deflned, having 

 in 5 3 deep incisions with denticulation above and below^ them, in Q slightly 

 concave, irregularly servate; finger eurved, strong, inner margin in d ciliated. 

 Peraeopods 1 — 5 long and slender, none of the joints expanded, except 2<^ in 

 peraeopods 4 and 5 not very broadly oval. Uropod 3, peduncle with 10 spines, 

 lunirly twice as long as ramus, of which the 2 joints are subequal, very 

 slender. Telson oblong oval, apically narrowed, 3 spines on each side. Colour 

 whitish, pellucid, with scattered orange patches; ova violet. L. 8 mm. 



North-Atlantic and Xorth-Sea (West-Xorway). Depth 150-282 ni. 



11. S. mierops O. Sars 1892 S. m., G. ü. Sars, Crust. Xorway, v. 1 p. 237 t.81 

 f. 1 ! 1893 S. monoculokles (part.), A. DellaValle in: F. Fl. Neapel, r. 20 p. 907. 



Not very sharply distinguished from S. marina (p. 198). Body rather 

 robust. Head. lateral corners broadly rounded. Side-plates and pleon segment 3 

 iKsarly as in S. marina. Eyes very small, round, imperfectly developed, light 

 red. Antennae 1 and 2 comparatively sliorter than in S. marina, nearly equal. 

 Gnathopod 2 in 9, O^^i Joint elougate, palm coarsely deutated, reaching nearly 

 to base. Uropod 3, peduncle with 8 spines, longer than ramus, of which 

 2*' Joint is shorter than 1***. Telson rather broadly oval, 4 spines on each 



