Fro7n t/te Annals and Maoazinr of Natural History, 

 Ser. 7, Vol. xiv., December 1904. 



British Isopoda of the Families ^Egidse, ClrolanidjB, Tdoteidge, 

 and AicturidEe. By Canon A. M. NORMAN, M.A., 

 D.C.L., LL.D., F.R.S., &c. 



[Plates XII. & XIII,] 



The jnirpose of this paper is to bring up our knowledge of 

 tlie Crustacea of the above-named families to the present 

 time. Most of the additions to our fauna are here first made 

 known. In Bate and Westwood's ' Sessile-eyed Crustacea^ 

 the numbers of species described were : — ^Egidse 5, Ciro- 

 lanidse 4, Idoteidte 7, Arcturidaj 3 (of these, Arcturus 

 gy^acilis was the male of A. Jongicornis) . The following notes 

 record — -.^gid^ 10 (one of these, jE, rosacea, a doubtful 

 British species), Cirolanidse 9, Idoteidaj 11, Arcturidse 6. 



Besides the British Isopods there have been added such 

 species as have been taken by dredging-expeditions of the 



