533 



the dactylus only armed with 3 serrations at the base; daetylus of the 

 posterior gnathopoda serrated only in its proximal half, the serrations being 

 in number. Pereiopoda comparatively less slender than in L. pallicla, last 

 pair having the meral joint ratlier broad and shorter than the carpal one, 

 propodal joint setous on the enter edge, dactyl ns about half its length and 

 very slender. Last pair of uropoda with the outer ramus quite naked, inner 

 one armed with only a single denticle on the inner edge. Telson having 

 the cleft rather wide, and extending nearly to the base, terminal lobes con- 

 siderably diverging, and each armed at the bidentate tip with a slender 

 spine. Body whitish, pellucid, with reddish violet, translucent intestine. 

 Length of adult female scarcely exceeding 3 mm. 



Remarks. This form, first described by Sp. Bate, was referred by 



that author to his genus PJiardra, though in all characteristics it is a true 

 Lilljeborgia, and even very nearly allied to L. pallhla, from which it is chiefly 

 distinguishable by its small size, the different armature of the metasome, 

 the small rounded eyes, and the somewhat different shape of the telson. 



Occurrence. I have only met with this species in 2 localities of the 

 Norwegian coast, viz, at Haugesund and in the Trondhjemsfjord. In both 

 localities it occurred very sparingly in a depth of 10 fathoms, on a bottom 

 of coarse sand. It is now for the first time added to the fauna 

 of Norway. 



Distribution. British Isles (Sp. Bate), coast of France (Chevreux). 



28. Lilljeborgia macronyx, (r. 0, Sars, n. sp. 



(PL 188, fig. 2). 



Body considerably more slender than in the last species, with the '2 

 anterior segments of metasome and the 1st segment of urosome each produced 

 to a single small dentiform projection. Cephalon about the length of the 

 first 2 segments of mesosome combined, rostral projection well marked, lateral 

 corners sligthly produced, and obtusely acuminate at the tip. Anterior pairs 

 of coxal plates fully as dee]) as the corresponding segments, 1st pair somewhat 

 expanded distally; 4th pair angularly produced below the posterior eraargina- 

 tion. Last pair of epimeral plates of metasome produced at the lateral 

 corners to a very small dentiform projection. Eyes inconspicuous in alcoholic 

 specimens. Superior antenna? somewhat exceeding in length l /s of the body, 

 and reaching considerably beyond the peduncle of the inferior ones, nagelluni 

 nearly twice the length of the peduncle, and composed of about 12 articulations, 



70 Crustacea. 



