180 Urothoe 



2. U. marina (Bäte) 1857 Svlcator marinus, Bäte in: Ann. nat. flist.. ser. 2 

 ul9 p. 140 1 1862 Urothoe m.. Bäte, Cat. Amphip. Brit. Mus., p. 115 t. 19 f. 2 , 1869 

 XJ.m.? var. pectmatus, E.Grube in: Abh. Schles. Ges., 1868/69 p. 119 | 1891 ü. m., 

 T. Stebbing in: Tr. zool. Soc. London, v. 13i p. 16 t. 2 j 1898 U. irrostrata (part.), 

 A. DellaValle in: F. Fl. Neapel, u 20 p. 664. 



Eyes very large in adult ö, nearly meeting ou top of bead. Anteniia l, 

 3^ Joint ^3 length of 2*^, flagelluin 9-jointed, accessory flagellura 5-jointed. 

 Antenna 2, flagelluin in o as long as ultimate Joint of peduncle, flagellum 

 in ö 50-jointed. Maxilla 1, inner plate with 4 or 5 setae, joints of palp equal. 

 Gnathopod 1, 5*^ Joint having at the distal niargin a row of 12 pectinate spines 

 and a row of microscopic spinales; gnathopod 2 without these rows, palm less 

 oblique, finger shorter than in gnatbopod 1. Peraeopods 1 and 2, finger with 

 5 tubercles on bind raargin. Peraeopod 3, 2^ Joint very broad, bind coruers 

 obtuse, 3^^ broader tbau long, 4*^^ ratber longer, scarcely wider, inner apical 

 margin fringed with 16 very long plumose setae, 5*^ nearly as long as 3^ 

 and 4*^ combined and sligbtly wider, 6*^ longer, much narrower than 5*^, 

 7*^ nearly as long as 6*^ ratber broad, except at tip, with about 13 nodules 

 on front margin. Uropod 1, peduncle equal to outer ramus, rarai sraooth, 

 sti'ongly curved, inner much less than outer; uropod 2 smaller, rami 

 smooth, sligbtly curved, outer scarcely longer than inner; uropod 3, rami 

 subequal, ratber long, moderately broad, in d densely plumose, outer with 

 minute 2*^ Joint. Telson, length and breadth equal, cleft nearly to base, 

 each apex with feathered cilium, spine and 3 setae. L. 8 mm. 



North - Atlantic (Shetland Islands, Moray Firth, Firth of Clyde, Liveqjool 

 Bay, France). 



3. U. grimaldii Chevreux 1895 U. g., Chevreux in: 3Iem. Soc. zool. France, 

 V. 8 p. 428 f. 1—4. 



9 unknown. — d. Eyes very large, oval, meeting on top of bead. Antenna 1, 

 2^ Joint of peduncle ratber longer than P^ 1^* than 3<^, flagellum shorter 

 than 3^. 4-jointed. Antenna 2, flagellum 40-jointed. Mouth-organs more 

 robust than usual. Maxilla 1, inner plate sraall, with 3 setae, outer plate 

 very broad, 1^* Joint of palp longer than 2'^. Guathopods 1 and 2 ratber slender. 

 Peraeopod 3, 2^ Joint with hinder angles rounded, 3"^ and 4**^ subequal, 5*^^ 

 2^2 times as broad as long, with very numerous spines, finger having 5 

 or 6 long spines on front margin. Uropods 1 and 2 with slender subequal 

 rami, inner brauch in P* sligbtly armed. Uropod 3 uniquely having the 

 inner ramus ratber longer than the outer; 2*^ Joint of outer minute. Telson 

 cleft nearly to the base, a little broader than long, with 2 spinules on each 

 apex. L. 3-5 mm. 



Mediterranean (Morocco). Depth 2 m. 



4. U. pulchella (A.Costa) 1853 Egidia p., A.Costa in: Rend. Soc. Borbon., 

 n. ser. u 2 p. 172 | 1876 Urothoe p., A. Boeck, Skand. Arkt. Amphip., v.2 p. 225 | 1891 

 U.p., T. Stebbing in: Tr. zool. Soc. London, v.l'di p. 11 t. 4a | 1893 U. irrostrata (part), 

 A. DellaValle in: F. Fl. Neapel, ».20 if. 664 t. 5 f. 3, 8; t. 36 f. 1—18; t. 60 f. 11, 12. 



Eyes in d reniform, except in smaller stages, in Q circular. Antenna 1, 

 1^* and 2^ joints equal, 3*^ ratber shorter, flagellum 5- or 6-jointed, little 

 longer than ultimate Joint of peduncle, accessory flagellum 3- or 4-jointed, longer 

 than half primary. Antenna 2, flagellum in Q scarcely as long as ultimate Joint of 

 peduncle, flagellum in ö 34-jointed. Maxilla 1, inner plate slender, with 6 setae, 

 l^t Joint of palp ratber broader and longer than 2*^. Gnathopod 1, 7 spines 



