BRITISH ENTOMOSTKAC v 



four long, simple sctaj ; the third is the shortest of all, 

 with a projection on its under edge, which gives off two 

 stout, plumose seta.'; the fourth, longer and narrower than 

 the preceding, is armed on its outer edge with five simple 

 setae; and the h'fth is very slender, and terminated by 

 four short, simple spines. 



The natatory feet (t. XXIII, f. 1 1} arc large, and like 

 those of preceding species, except that the long filaments 

 arc distinctly and beautifully plumose, and that there was 

 apparently no appendage attached to the basilar joint. The 

 first (f. \(/) and second pairs (f. 1 d) of jaws are of the 

 same structure as in C. Mac Andrei. The oviferous feet 

 (f. I/) are stronger than in the preceding species, and 

 are armed with a much greater number of spines, being 

 not less than twenty-four. The caudal plate is exactly 

 the same as described in Mac Andrei. 



Hab. Dredged in from eighty to ninety fathoms sand, 

 twenty miles east of the Noss in the Shetland Isles, 

 R. M'Andrew, Esq. 



ORDER II COPEPODA.* 



CARCINOIDA (pars),Latreille, Cuv. Regiic An., iv, 151. 

 COPEPODES, M. Edwards, Hist. Nat. Crusl., iii, II I. 

 CopEPom, llnli-tl, Trans. Benv. Nat. Club, ii, 181.".. 

 Citoi-iiYKuPODA A, Ji/'i-i.n'ixfcr, Orgiiiiiz. of Trilob. (Ray Soc. edit.), 15 1. 

 CKUSTACEA COPEPODA (CYCLOPACEA), Dana, Proc. Amcr. Acail. Arts and 



Sciences, IS 17. 



Character. Body divided into several verv distinct 

 rings. Envelope consisting of a buckler, inclosing head 

 and thorax. Aloiitli possessed of fool-jaws. |\vt li\e 

 pairs in number, mostly adapted for swimming. Ovary 

 external. 



* From KWTTI;. oar; and .TITI;, foot. 



