I 



ISOPODS OF NORTH AMERICA. 483 



MUNNA KR0YERI Goodsir. 



Mmina kroijiri (iooDsiu, Kdiiiburgh New I'liil. Jour., XXXIIl, 1842, p. 365, pi. 



VI, fig. 2. — Bate and Wehtwooo, Brit, ses^iile-eyed CruHt., II, 1868, p. 82(). 

 3/u)iH,a tt7ii7eana Bate and Westwoou, Brit, sessile-eyt'd Cru.st., II, 1868, p. 325>. 

 Munnn kroi/eri Han.sen, Vid. Medd. naturh. Forcii. i KJ0bh., 1888, p]). 194-195. — 



Sars, CniKt. Norwaj', II, 1899, ]>p. 109-110, pi. .\i,vi, fig. L.— Richardson, 



Americ-an Naturalist, XXXIV, 1900, p. :W0; Troc. V. S. Nat. Mus., XXIII, 



1901, p. 556. 



L(HY//ities. — Godhavii and Upcrnivik, Greenlaiul; also, coast of 

 Norway. 



Depth.— Vd to 6<) fathoms. 



"Body of female somewhat robust, with the anterior dixision oval 

 in form and the segments very sharply marked off from each other 

 and clothed laterally with scattered hairs. Body in male, as usual, 

 much narrower. Ocular processes conically tapered. Caudal seg- 

 ment comparatively short, scarcely more than half as long as the mes- 

 osome, and rounded oval in form, lateral edges rather bulging in front, 

 and each armed with four strong denticles, the posterior pair subdor- 

 sal, tip bluntly produced, and without any serrated lamellae. Eyes 

 comparativel}' small, at least in female. Superior antenntever}^ short, 

 extending not nearly to the middle of the penultimate peduncular 

 joint of the inferior ones; fiagellum composed of only three articula- 

 tions, including the very small apical joint. Inferior antennae, as 

 compared with those in the other known species, of inconsiderable 

 length, scarcely as long as the bodv, tlagellum not attaining the length 

 of the peduncle. First pairs of legs in female of the usual structure, 

 in male considerably stronger, with the carpus considerably expanded 

 and produced at the end inside to an acute thumb-like projection, the 

 inner edge of the joint densely setiferous. Ambulatory legs in both 

 sexes shorter and stouter than usual, last pair scarcely' exceeding in 

 length the anterior division of the body. Uropoda produced at the 

 tip into several dentiform projections, one of which assumes a hook- 

 like appearance. Color pale yellowish, slightly mottled with light 

 brown. Length of adidt female about 3 mm." — G. O. Sars." 



MUNNA CiECA, new species. 



Body ovate; surface rough and spiny, beset with numerous long 

 and small spines. 



Head produced in front between the basal articles of tlie antenna^ 

 in a roiuided process. Eyes absent. Dorsal surface of head beset 

 with long, narrow spines. About the middle of the head is a long 

 median spine, with a shorter one on either side. On either side of 

 the shorter spines is another long spine. Close to the lateral margin 

 is a long spine. The antero-lateral lobes are produced in bifid spines. 



"Crust, of Norway, II, 1899, pp. 109-110. 



