Caiu)n A.M.Noimnn on British Aniji/iijuxlii. 197 



Diatnh. 'Porcupine,' 18G0, St. 30, hit. 4^^ o'V N., loiij,'. 

 11° 9' \V., I*, e. oulsicle the entrance to the l^iigli.sh (Jhiinnel, 

 in 725 fathoms : Mas. Nor. 



[Genus 8. CycLOC.\Kls, Stebl)in^^ 

 (Report 'Challenger' Crustacea, p. Oty.) 



[Ci/docaris fiiroensis, sp. n. (PI. VI. figs. 5-1;').) 



The form of the head, the general character of the antenn;fi, 

 of the gnathopotls and perteopods, of all the coxoe, of the 

 dorsal imprecision of the fir.st segment of the uros )me, and of 

 uropods and tel.son show remarkable resemblance to Cijclo- 

 caris tuhltensis^ Stebbing, the ty[)e and only previously known 

 species of a very marked genus. So remarkable is the resem- 

 blance, that the difterences seem scarcely varietal ; but I 

 liesitate to unite a form found in the Faroe Channel with one 

 from so distant a locality as Tahiti. 



The cephaJon has a similar concavity between the bases of 

 the two pairs of antenna as in C. tahitensis, and similarly 

 leaves the base of the lower pair fully exposed to view. 



The upper a«^e7j?i(P or antennules have the peduncle shorter 

 than the ccphalon ; the flagellum twelve-jointed, the first of 

 these joints is fully as long as the cephalon, the distal lower 

 corner of this and of the four following joints is furnished with 

 long slentler spines : the secondary appendage is composed of 

 six articulations, of which the first is the longest ; it reaches 

 to the seventh joint of the flagellum. 



The lower antennce have the peduncle short, the last two 

 joints of the peduncle subequal, and the flagellum consists of 

 twenty- two articulations. 



No ei/es are visible. The remarkable mandible (tig. 5) 

 closely corresponds with that of the type species. 



The Jirst ma.ril/ce (fig. G) have the basal lobe narrowed 

 almost to a point below, whence it swells out into a nearly 

 semicircular form, furnished on the inner margin with short 

 stiff setaj, which are verticillately plumed; the masticatory 

 lobe is elongated and narrowed to the extremity, furnished 

 vith long flexuous spines, bearing a tooth on the side, and 

 also witli slender sjtie : the ])alp is narrow, the last joint 

 arcuate, and terminating in three teeth tipped with spine- 

 points; of these the central is the longest; outside these at 

 the outer corner is a small short s|)ine and a small seta, and 

 on the liinder margin another and larger seta. 



The second muxi/hc (fig. 7) have the outer lobe nmch 

 longer than tiie inner, the latter is margine^l with two distinct 



