126 

 3. Priscilla armata, Boeck. 



(PL 42). 

 Priscilla armata, Boeck, Crust, amphip. bor. & arctica, p. 44 



Body on the whole very strongly built, with broadly rounded back 

 and rather hard integuments. Cephalon comparatively small, truncated at 

 the tip, lateral corners evenly rounded, postantennal angle produced to a 

 sharp anteriorly turned point. The 4 anterior pairs of coxal plates succes- 

 sively increasing in size posteriorly, each tipped with 4 6 very long ciliated 

 setse; 4th pair subtriangular, very slightly emarginated posteriorly in their 

 upper part ; 5th pair scarcely larger than the 2 succeeding pairs. The 2 

 posterior segments of metasome each with an acute triangular upturned pro- 

 jection dorsally; epimeral plates broadly rounded. First segment of urosome 

 without any dorsal projection or sinus. Eyes quite inconspicuous in alcoholic 

 specimens. Superior antennae about as long as the peduncle of the inferior, 

 1st peduncular joint fully as long as the other 2 combined, nagellum much 

 shorter than the peduncle and composed of about 10 articulations; accessory 

 appendage considerably exceeding the half length of the flagellum, and 5-articu- 

 late. Inferior antenna? powerfully developed, penultimate joint of the peduncle 

 very large, and having, besides some short scattered spines, a series of long 

 ciliated setse on the posterior edge; flagellum scarcely more than half the 

 length of the peduncle. Gnathopoda with the propodos about as long as the 

 carpus, but somewhat broader, palmar edge in the anterior ones oblique, in 

 the posterior nearly transverse ; dactylus in both pairs rather short. Ante- 

 penultimate pair of pereiopoda with the basal joint obliquely oval, and about 

 half as long as the remaining part of the leg, upper posterior angle produced 

 to a long upturned uncinate spine. Penultimate pair with the basal joint 

 considerably longer, and very slightly dilated distally, upper angle produced 

 to a similar, but somewhat smaller spine. Last pair of pereiopoda fully as 

 large as the preceding pairs, basal joint nearly orbicular in form, carpal joint 

 gradually expanded distally and armed at the end with several rows of short 

 spines, propodal joint likewise rather strong and coarsely spinous. Last pair 

 of uropoda with the outer ramus spinous on the outer edge, terminal joint 

 small, spiniform, inner ramus very minute. Telson subquadrangular, nearly 

 as broad as long, posterior sinus only occupying the outer fourth part, ter- 

 minal lobes narrowly truncated, each with 4 small apical spines. Colour not 

 stated. Length 11 mm. 



Remark*. It seems to me somewhat doubtful whether this form may 

 properly 1)6 referred to the fauna of Norway. Boeck found some specimens 

 in our University Museum, without exact statement of the locality, and be- 

 lieved them to be from the west const <>!' Norwuv, Sondfjord. But the species 



