78 Cumacea: 9. Leuconidae, 2. Eudorella 



4. E. nana O. Sars. 1879 E. n., G. 0. Sars in: Arch. Naturv. Kristian., y. 4 

 p. 40 t. 33. 



Very like E. tmncatula (nr. 10), but much smaller. Pseudorostral lobes 

 with very' few hairs on rounded upper corner, thence descending smoothly 

 to a single upturned tooth in 9 , followed by 2 downward pointed teeth and 

 then a sinus bounded by a sharp forward directed tooth with some serration 

 of the lower margin: in the 6 a somewhat sinuous front is bounded by a 

 forward directed tooth without other teeth or serration. The 5*^ pleon segment 

 projects from its dorsal end a group of setae far over the conically produced 

 telsonic segment. Antenna 1. flagellum in 9 3-jointed, accessory longer than 

 l^t joint of principal but not as in 6 equal to 1^^ and 2i'i joints combined, 

 flagellum in d 4-jointed. Peraeopod 1 slender. 6^^ joint somewhat longer 

 than 5*1^, twice as long as 7*^^. Peraeopod 2 having terminal joint as long 

 as antepenultimate, beset with spines but not densely. Peduncle of uropods 

 slightly shorter than the exopod. which is slightly longer than P^ joi^t of 

 the endopod: lower part of peduncle and upper part of endopod having on 

 medial margin in 6 serrate setae in addition to the fringing spines; 2'^^ joint 

 of endopod one-third the length of the 1^^ apart from the apical spine 

 which appears however to be completely fused with the joint, medial margin 

 having only a subapical spinule. Colour whitish, semipellucid. L. 3 mm. 



Mediterranean, Bay of Spezia, depth 38— 5H m; Bay of Naples. 



5. E. monodon Calm. 1912 E. m., Caiman in: P. U. S. Mas., t. 41 p. 622 

 tf. 21—24. 



Near to E. hirmta (nr. 6), but serration at upper part of pseudorostral 

 lobes pointing downwards, setae on surface of body sparse and inconspicuous, 

 except those projecting backwards from 5*^ pleon segment. A minute pro- 

 curved tooth is situate on the mid-dorsal line of the carapace about one- 

 third of its length from the front. Telsonic segment short, about four-fifths 

 as long as the peduncles of the uropods, between the bases of which it is 

 well produced. Antenna 1, 2"'^ joint dilated, about two-thirds as broad as 

 long, accessory flagellum not nearly as long as 1^* joint of the principal. 

 Peraeopod 1 with 6*11 joint longer than 5^'' and more than twice the 7^'^. 

 Peraeopod 2 with h^^ joint about equal to 4'^^ and little longer than 6^^ and 

 7**1 combined. Peduncle of uropods as long as the endopod, V^ joint of 

 which is 4 times as long as the 2»<i, carrying numerous spines on the medial 

 margin and setae on the lateral; exopod shorter than the endopod, slightly 

 longer than its P* joint. L. 9 4-7 mm. d unknown. 



Beach near Calcasien Pass, Louisiana. 



6. E. hirsuta (0. Sars) 1869 Eudora h., G. 0. Sars in: Nyt Mag. Naturv., r. 16 

 p. 3 1 7, 347 I 1871 £w(?ore^to/t., G. 0. Sars in: Svenska Ak. Handl., n.ser. ?;.9 nr.l3 p.44 1. 18 

 f. 100 I 1879 E. h. (var.?), A. M. Norman in: Ann. nat. Hist., ser. 5 u 3 p. 72 | 1894 E. h., 

 A. M. Norman in: Ann. nat. Hist., ser. 6 v. 13 p. 275 | 1900 E. h., G. O. Sars, Crust. 

 Norway, v. 3 p. 38 t. 30 ] 1900 E. h., Zimmer in: Fauna arctica, v.l p. 419, 433 tf., 440. 



Body very slender and elongate. Pseudorostral lobes clothed in upper 

 part with forward curving setae, the rather sinuously truncate front 

 margin denticulate in 9 with upward pointing teeth as far as the sinus, 

 which is nearly filled by a prominence serrate downwards and bounded by 

 a very small forward pointing tooth at the end of the serrate part of the 

 lower margin (antero-lateral angle well rounded off, var. Norman); margmal 



