660 



except in the bifurcation of the cephalic nodule and this may be only an 

 accidental feature. Though nearly allied to G. Jineari.9, tlie present form is 

 undoubtedly speciiically distinct, being easily recognized by its more strongly 

 built body, the want of distinctly defined dorsal tubercles, and, more particu- 

 larly, by the rather different structure of the posterior gnathopoda in 

 the male. 



Occurrence. — Off the coast of Finmark this species is very frequently 

 met with in comparatively shallow water, among algae and Hydroida. It 

 also extends southwards along the whole west coast of Norway, at least to 

 Stavanger, but has not yet been found off the south coast. 



Dislribiifion. — Greenland (Kroyer), Spitsbergen (Goes), Baffin's Bay 

 (White), Bohuslan (Bruzelius), Kattegat (Meinert) — 



S. Caprella punctata, (Boeek) 



(PI. 2:?7, fig. 2). 

 Caprella punctata, Boeck, Crust. Aniph. bor. & arcl. p. 197. 



Female. — Body comparatively strongly built and coarsely spinous, 

 some of the spines, arranged along the back, being considerably larger than 

 the others. Cephalosome having above, in front of the cervical impression, 

 a large, somewhat flattened tubercle, bifurcate (or sometimes tripartite) .at 

 the tip, and behind the same, 3 spiniform tuljercles, the 2 anterior ones being 

 juxtaposed; each of the 4 succeeding segments with about 3 more conspicuous 

 dorsal spines. Eyes small, orbicular. Superior antennae but little exceeding 

 in length Va of the body, 3rd joint of the peduncle considerably shorter than 

 the 1st, flagellum not attaining the length of the peduncle, and composed of 

 aboiit 15 articulations. Inferior antennae projecting considerably beyond the 

 peduncle of the superior ones, and of the usual structure. Anterior gnatho- 

 poda comparatively more strongly built than in C. septentrional is, otherwise 

 of a very similar structure. Posterior gnathopoda rather powerful, and partly 

 covered with small tubercles, meral joint angularly produced below, propodos 

 very large, oval in form, with several distinct tubercles above, palm having 

 in front an angular lobe succeeded by a small, dentiform projection, defining 

 angle rather prominent and tipped by a strong spine. Branchial lamellae of 

 moderate size, and obovate in form. The 3 pairs of pereiopoda very strong 

 and partly tubercular, propodal joint much dilated in the middle, with tlie 

 palm comparatively short, scarcely occupying more than half the lengtli of 

 the joint, defining angle rather projecting, and armed with 2 juxtaposed. 



