of the Fishery Board for Scotland. 241 



in the first the inner margin is slightly lobate towards the distal end, and 

 one or two moderately stout setse spring from the rounded apex of each 

 lobe i the gently rounded inner margin of the second joint is fringed with 

 minute hairs, and carries one or two setse near its distal end ; the remaining 

 five joints are small, the end one is provided with two short and two long 

 terminal setse, a long seta also springs from the inner aspect of the pen- 

 ultimate joint, while the three preceding joints are furnished with a few 

 setse as shown by the drawing (fig 11). 



The first four pair of swimming feet are, each of them, two-branched 

 and both branches are three-jointed. The outer branches of the first pair 

 have their exterior margins armed with elongated spines arranged as 

 follows : — One near the distal end of the first joint, one on the second 

 joint, three on the margin and one (larger than the others) at the end of 

 the third joint ; a single long plumose seta springs also from the inner 

 margins of the first and second joints, and four from the inner edge of the 

 third joint. The first and second joints of the inner branches have no 

 setse or spines on the outer margin, but the first joint bears one and the 

 second two setae on the inner edge, while the third joint bears one seta 

 near the middle of the outer margin, three on the inner margin, and two 

 at the apex. The armature of the other three pairs of swimming feet is 

 somewhat similar to that of the first, except that the third joint of the 

 outer branches of the fourth pair carries five setse on the inner margin ; 

 moreover, in the fourth pair the third joint in both branches is propor- 

 tionally rather more elongated, being about equal to the entire length of 

 the first and second joints combined (figs. 12, 13). The spines on the 

 outer margins of the outer branches in all the four pairs are of a sabre- 

 like form, with the edges minutely serrated. 



The fifth pair of thoracic feet are each composed of a single two-jointed 

 branch, the first joint is somewhat dilated, being about as broad as long, 

 but the second is narrow and moderately elongated, and furnished with 

 five setse, one being situated near the middle of the outer margin, and 

 four around the distal end (fig. 14). 



— Habitat. — In the stomach of a small Haddock, Gadus ceglejinus, L., 

 88mm. (about 3J inches) in length, captured 65 miles east by south of 

 Sumburgh Head, Shetland, September 4th, 1900, by the steam trawler 

 "St. Andrew." 



3 \ Remarks. — The species now described agrees in some of its more impor- 

 tant characters with the genus Cyclopina of Claus ; but in that genus the 

 antennules are described as being shorter than the cephalic segment, 

 while the number of joints in those of the species hitherto recorded 

 is not more than twenty-two or twenty-three ; in C. longifurcata, on 

 the other hand, the antennules are not only as long as the cephalic 

 segment, but they are also apparently twenty-six-jointed ; then again 

 the antennae of Cyclopina are described as four-jointed, but the third 

 joint is very short, whereas in our specimen the third is as long as 

 the fourth joint. Notwithstanding these and one or two other minor 

 differences, the specimen seems to be a true Cyclopina. Only the one 

 specimen was observed ; and as it was apparently quite uninjured, it had 

 probably only been a short time in the Haddock's stomach before the 

 Haddock itself was captured. 



ASCIDICOLID.E. 



(?) Enteropsis vararensis, T. Scott (sp. n.). (PL XVII., figs. 28-34.) 



Description of the female. — Length 1:2 mm. (about fa of. an inch) 

 Body robust, cylindrical, slightly recurved. The cephalon is very small. 



