Cumacea: 24. Naunastacidae, 0. Cumella 183 



ISoc. London, u 28 p. 294 | 1902 C. p., G. S. Brady in: Nat. Hist. Tr. Northumb., v. 14 

 p. 95 { 1905 C.p., Caiman in: Sci. Invest. Fish. Ireland, 1904 app. 1 p. 23 | 1909 C. p., 

 A. M. Norman & G. S. Brady in: Nat. Hist. Tr. Northumb., ser. 2 r.3ii p. 34 | 1911 

 C.p.. Caiman in: Tr. zool. Soc. London, ul8iv p. 344. 



9 . Pseudorostral lobes short, meeting in front of tlie eye. front margin 

 straight and then deeply emarginate with acute antero-lateral angle. Cara- 

 pace large and deep, rather compressed in front, dorsal line arched, carinate 

 throughout, with 8 to 12 procurved denticles. Pleon narrow, a little shorter 

 than preceding part of the body, telsonic segment shorter 

 than the otii, obtusely extended between the uropods. 

 Eye rather conspicuous, circular. Antenna 1. accessory 

 flagellum minute, 2-jointed. Peraeopod 1, 2°'^ joint distally 

 strongly serrate on both margins, b^^ joint as long as 

 6* and 7*^ combined; in 2"*^ pair 5*^ and 7^'' joints 

 subequal. C^^^ half as long as 7*^^; in the 3 following Fig. 123. 



pairs ')^^ joint only a little longer than 6^*^. Peduncle c. pygmaea {(S) sars, 

 of uropods serrate on medial margin, considerably longer ^^°"^- 



than the endopod. which is a little longer than the 

 much narrower exopod. Colour, dark brown markings. L. 2'5 mm. 



d. Pseudorostral lobes shorter, antero-lateral corner less prominent. 

 Carapace shallower, scarcely compressed in front, dorsal line nearly straight, 

 unarmed. Eye very large, subquadrate, with 7 lenses, the front median 

 one very prominent. Antenna 2, flagellum reaching the 3^ pleon segment. 

 Peraeopods 1—4 with 2"*^ joint greatly dilated. L. 3 mm. 



Norway, British Isles, Heligoland, Mediterranean; shallow water. 



11. C. limieola O. Sars 1879 C. I.. G. 0. Sars in: Arch. Naturv. Kristian., 

 «\4 p. 103 t. 53, 54 I 1911 C. l, Caiman in: Tr. zool. Soc. London, «;. 18iv p. 344. 



9 . Integument pellucid, finely granular, hairy. Pseudorostral lobes 

 subacute, obliquely upturned, meeting in front of the eye, the front margin 

 receding, finely serrate above, the antero-lateral corner produced into a little 

 tooth. The carapace in dorsal view triangular, dorsal line little arched, cari- 

 nate, on the anterior half having 3 or 4 rather large, suberect teeth. Pleon 

 shorter than preceding part of the body, telsonic segment shorter than 5*^ 

 longer than any of the others. Eye distinct. Antenna 1, peduncle of 3 

 subequal joints, 1-jointed accessory flagellum minute. Peraeopods 1 and 2 

 with the exopods unusually slight; 2'^^ joint of peraeopod 1 without strong 

 serration, 7*^ joint little over half the length of the 6*11. Uropods short, 

 peduncle not longer than the telsonic segment, but considerably longer than 

 the endopod, which in turn is longer than the narrow exopod. L. 3 mm. 



(5. Larger but more slender and less hairy than the 9, pseudorostral 

 lobes shorter, more strongly serrate, the antero-lateral tooth much shorter ; 

 dorsal line of carapace horizontal, without carina or teeth. Pleon segments 

 laterally grooved, with finely serrate carina for upper boundary of the groove. 

 Eye of great size, of the 9 lenses 3 larger than the rest are conspicuous 

 over the back and sides of the pseudorostral projections. Antenna 2, fla- 

 gellum reaching end of pleon. Epipod of 1^^ maxilliped furnished with 

 branchial leaflets which are wanting in the 9. Peraeopods 1—4 with 2'^'^ joint 

 strongly developed. Peraeopod 5 more slender than in the 9 . Uropods 

 rather more elongate than in the 9, peduncle longer than the telsonic seg- 

 ment. L. 3"5 mm. 



Mediterranean, depth 11 — 19 m. 



