From the A.vn'als axd Magazine of Mati'iial Histohv, 

 Ser. 6. Vol. xviii., July 1896. 



On some new and rare British Crustacea. Bj ThOMAS 

 Scott, F.L.S., Mem. Soc. Zool. de France, Naturalist to 

 the Fishery Board for Scotland, and Andrew Scott, 

 Fisheries Assistant, University College, Liverpool. 

 [Plates I. & II.] 



Genus Clausia, Clapar^de * (1863). 

 (?) Clausia Cluthoe, sp. n. (PI. I. figs. 1-12.) 



Description of the Species. — Female. Length 1*3 millim, 

 (tV of an inch). Body narrow, elongate, tapering gradually 

 towards the posterior end. Antennules (fig. 2) short, stout, 

 six-jointed, and moderately setiferous ; there is not much 

 difference in the length of the first, second, third, and last 

 joints, except that the first is rather longer than the other 

 three ; the fourth and fifth joints are also subequal, but they 

 are both shorter than any of the other joints, as shown by 

 tlie formula — 



Proportional lengths of the juiuts. . 16 . 13 . 1 2 . 8 . 7 . 1 3 

 Number of the joints 1 2 3 4 5 6' 



* Not Clausia, Boeck (1864) ; asClaparede hadah-eadv used this name, 

 M. Boeck, in 1S72, substituted the name Pseudocalanus for hi.-* genus. 



