665 



produced, propodos exceeding!}' large, oblong oval in form and scarcely taper- 

 ing distally, palm produced in front to an angular lappet succeeded by a 

 dentiform projection, defining angle well marked, dactylus strong and curved. 

 Posterior gnathopoda in male somewhat larger than in female, and attached 

 beyond the middle of the corresponding segment; otherwise of a very similar 

 structure. Branchial lamellae small, narrow oblong in form. The 3 pairs of 

 pereiopoda moderately strong, propodal joint twice the length of the carpal 

 one, and having the palm much longer than the upper margin. Body whitish, 

 more or less variegated with a light brown pigment. Length of adult 

 female 22 mm. 



Eemarls. — The present species was detected during the Norwegian 

 North Atlantic Expedition, and has been described and figured by the author 

 in the account oi the Crustacea of that Expedition. It is easily recognized 

 by its slender and elongated body, the unusual length of the superior an- 

 tennae, and the powerfully developed posterior gnathopoda. Dr. Hansen de- 

 scribes a form from Greenland, which he considers as a variety of this species 

 (var. spinosa). In my opinion, however, this form ought to be regarded as 

 a distinct species. 



Occurrence. — Some specimens of this form were found attached to 

 a Sertularia dredged at Hammerfest. It is now for the first time added to 

 the Norwegian fauna. 



Distribution. — Off Beeren Eyland (Norw. North Atl. Exp.) 



13, Caprella ciliata, G. 0. Sars. 



(PI. 239, fig. 2). 

 Cajjrella ciliata, G. O, Sars, Oveisigt af Norges Crustaceer I, p. 114, PI. G, fig. 9. 



Body exceedingly slender and narrow, especially in the male, with 

 the back smooth throughout; antepenultimate segment veiy much elongated, 

 considerably exceeding in length the last 2 combined, Anterior part of the 

 body in male, as usual, more prolonged than in female. Eyes small, rounded. 

 Superior antennae somewhat exceeding half the length of the body, 2nd joint 

 of the peduncle about twice as long as the 1st, 3rd joint longer than the 

 latter, flagellum about the length of the peduncle, and composed of 13 — 15 

 articulations. Inferior antennae half the length of the superior. Anterior 

 gnathopoda less strong than in the 3 preceding species, propodos oblong oval 

 in form. Posterior gnatho])oda in female of moderate size, with the propodos 

 oval in form, palm having in front an angular lobe succeeded by a dentiform 



