197 Canon A. M. Norman on British Amphipoda. 



Distrib. ' Porcupine,' 1869, St. 36, lat. 48° 50' N., long. 

 11° 9' W., t. e. outside the entrance to the English Channel, 

 in 725 fathoms : Mus. Nor. 



[Genus 8. Cyclocaris, Stebbing. 

 (Report 'Challenger' Crustacea, p. GG4.) 



[Cyclocaris faroensis, sp. n. (PI. VI. figs. 5-15.) 



The form of the head, the general character of the antennae, 

 of the gnathopods and perseopods, of all the coxse, of the 

 dorsal impression of the first segment of the urosome, and of 

 uropods and telson show remarkable resemblance to Cyclo- 

 caris tahitensis, Stebbing, the type and only previously known 

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

 blance, that the differences seem scarcely varietal ; but I 

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

 from so distant a locality as Tahiti. 



The cephalon has a similar concavity between the bases of 

 the two pairs of antennse as in G. tahitensis, and similarly 

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



The upper antennce or antennules have the peduncle shorter 

 than the cephalon ; the fiagellum 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 slender spines : the secondary appendage is composed of 

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

 to the seventh joint of the fiagellum. 



The lower antennce have the peduncle short, the last two 

 joints of the peduncle subequal, and the fiagellum consists of 

 twenty-two articulations. 



No eyes are visible. The remarkable mandible (fig. 5) 

 closely corresponds with that of the type species. 



The Jirst maxilke (fig. 6) 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 set£e, which are verticillately plumed ; the masticatory 

 lobe is elongated and narrowed to the extremity, furnished 

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

 also with slender seta? : the palp 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 spine and a small seta, and 

 on the hinder margin another and larger seta. 



The second •niaxilloi (fig. 7) have the outer lobe much 

 longer than the inner, the latter is margined with two distinct 



