80 Cumacea: 9. Leuconidae, 2. Eudorella 



lanceolate, surrounded with radiating spines. Peduncle of uropods scarcely 

 shorter than endopod, of which the 1^* joint is thrice as long as the second, 

 the medial margins carrying respectively 7, 8, and 3 spines, the terminal 

 spine on 2'^'^ joint distinct, not so long as the joint; exopod a seventh shorter 

 than the endopod. Integument pellucid. L. ovigerous 9 about 6-5 mm, d 

 unknown. 



Spitzbergen, depth 1017 m. 



9. E. splendida Zimmer 1902 E. s., Zimmer in: Ergeb. Hamburg. Magalh.- 

 Sammelr., v. 2 Cumac. p. 5, 6 tf. 6, 7 | 1907 E. similis, Caiman in: Nat. antarct. Exp., 

 V.2 Crust. Cum. p. 3 tf. 1— 6 | 1909 E. splendida, Zimmer in: Ergeb. Schwed. Siidpol.- 

 Exp., V. 6 nr. 'A p. 11. 



Pseudorostral lobes in Q subadult (Caiman) with tuft of setae on the 

 top, in Q and young d the front margin smoothly truncate down to the sinus 

 which has an almost smooth median prominence and is bounded below by a 

 horizontal tooth followed by a smooth lower margin; in adult d (Caiman) 

 the front margin is strongly convex, projecting well in front of the single 

 small tooth which defines it below. Fifth pleon segment projecting a pair 

 of long setae over telsonic segment (Caiman, not Zimmer, whose specimens 

 were imperfect). Antenna 1 Q , flagellum 3-jointed, d 4-jointed with accessory 

 as long as first 2 joints of principal combined. Peduncle of uropod subequal 

 to the exopod; endopod longer, with terminal spine fused to 2 "^^i joint (Zimmer) 

 or distinct (in figure by Caiman, who likens the uropods to those of E. trun- 

 catula, in which Sars figures the terminal spine as fused). Colour iridescent. 

 L. d 6 mm, Q subadult 5*8 mm. 



S. Georg:ia, edge of low-tide; Coulman Island, depth 183 m. 



10. E. truncatula (Bate) \So^ Eudora t, Bate in: Ann. nat. Hist., ser.2 v. 17 

 p. 457 t. U f. 3 I 1857 E. L, A. White, Hist. Brit. Crust., p. 151 | 1859 E. t, Danielssen in: 

 Norske Selsk. Skr. 19. Aarh., vAu p. 108 | 1865 E. t, G. 0. Sars in: Forh. Selsk. 

 Christian., 1864 p. 186 | 1869 Eudorella t., A. M. Norman in: Rep. Brit. Ass., u 1 8 

 p.272 I 1871 E.t., G. 0. Sars in: Svenska Ak. Handl., n. ser. «. 9 nr. 13 p. 44 t. 18 

 f.99 I 1877 E. inermis -{- E. t, Meinert in: Naturh. Tidsskr., ser. 3 «. 11 p. 183 (d) | 

 1879 E. t., A. M. Norman in: Ann. nat. Hist., ser. 5 v.3 p. 72 | 1879 E. t, G. O. Sars 

 in: Arch. Naturv. Kristian., u 4 p. 34 t. 30— 32 | 1894 E. t, A. M. Norman in: Ann. 

 nat. Hist., ser. 6 «.13 p. 275 | 1897 E. t., Ehrenbaum in: Wiss. Meeresunters., v. 2i p. 412 i 

 1900 E. t, G. 0. Sars, Crust. Norway, v.S p. 37 t. 29 | 1900 E. t, Zimmer in: Fauna 

 arctica. v.l p. 419, 433 tf., 440 | 1905 E. t., Caiman in: Sci. Invest. Fish. Ireland, 1904 

 app. 1 p. 21 I 1907 E. f., Caiman in: Tr. zool. Soc. London, u I81 p. 33 | 1909 E. t., 

 A. M. Norman & U. S. Brady in: Nat. Hist. Tr. Northumb., ser.2 v.3ii p.28 | 1912 E. t. 

 Caiman in: P. U. S. Mus., vAl p. 620. 



Integument thin and flexible, beset with short hairs, clearly squamose. 

 Body slender, especially the pleon. Pseudorostral lobes in the Q with a few 

 stiff setae on the rounded upper front corner, smoothly truncate in front down 

 to the denticulate, slightly prominent upper boundary of the sinus, the middle 

 of which is occupied by a prominence with 3 downward pointing denticles, 

 while its lower boundary is formed by an upward pointing tooth followed 

 by some serration of the lower margin. In the male the sinus is replaced 

 by a smooth convexity. The 2"*^ and 3^ pedigerous segments have the side- 

 plates rather widely outstanding. The 5*^ pleon segment does not project 

 long setae over tlie short telsonic segment. Antenna I, 3<^ joint shorter 

 than 2"'^, flagellum in 9 3-jointed, its long 1^* joint scarcely longer than the 

 1 -jointed accessory; flagellum in d 4-jointed, with a tuft of long filaments 



