THE COPENHAGEN MUSEUM AND OTHEE SOUECES. 399 



Talorcliestia. But it shows considerable likeness to another member of that genus, 

 Tcdorchestia pravldactijla Haswell, wliile also the sharply notched finger of the second 

 peraeopods and the long fifth joint of the first gnathopods are more commonly associated 

 with Talorcliestia than with Orchestia. The specific name alludes to the three-toothed 

 palm of the second gnathopods. 



Talorchestia kov.e-hollandi.«, n. sp. (Plate 31 A.) 



The body is stout. In the second pleon-segment the postero-lateral corners have an 

 acute point ; in the third segment they are quadrate. 

 Eyes round, dark, al^out their diameter apart. 



First aHtenncB. They reacli beyond the penultimate joint of the peduncle of the second 

 antennae ; the joints of the peduncle are successively shorter, none of them elongate ; 

 the flagellum is shorter than the peduncle and consists of six joints. 



Second antennce. Verticillately spinulose, about one-third as long as the body, penul- 

 timate joint of the peduncle nearly four-fifths as long as the ultimate ; the flagellum is 

 rather shorter than the pedimcle, and is composed of nineteen rather short joints. 



First (jnatliopods. d . The second joint bulges considerably from the narrow neck 

 and then narrows again slightly ; the fifth joint is longer than the sixth, and has a 

 prominent but narrow apical process of the hind margin; the sixth joint is rather short, 

 much widened distally, the finger overlapping the true palm, but not the advanced 

 rounded process of the hind margin, against which its apex impinges. 



Second gnathopods. 6 . The second joint is comparatively narrow, the third rather 

 larger than the fourth, the fifth diminutive ; the sixth very large, slightly widening to 

 the almost transverse palm, which, as so often occurs, has at the defining angle a small 

 pocket, a broad convexity leading thence to a spinulose concave space near the finger- 

 hinge, over which space the finger arches, leaving an interval, the convexity of its 

 sinuous margin then touching the convexity of the palm and its apex passing into the 

 defining pocket. 



First gnathopods. 2 . The fifth joint has no apical process of the hind margin ; the 

 sixth is short, strongly spined, narrowing gradually to the short finger, the base of which 

 occupies its rounded apex. 



Second gnathopods. ? . The second joint is membranous, well expanded ; the sixth joint 

 nearly as long as the fifth, rather narrow, produced as usual beyond the minute palm, to 

 which the finger is adjusted in a rather oblique position. 



Second per (copods. The finger is sharply notched near the nail. 



Third peneopods. These are short, with the broadly expanded second joint almost as 

 broad as long. 



Fourth perceopods. Much longer than the third pair. 



Fifth pera'opods. These are longer than the fourth pair, and have the second joint 

 broader, with subquadrate apex to its hind margin ; the fourth and fifth joints rather 

 broad, but at the same time elongate ; the sixth joint long and narrow. All the peraeopods 

 have numerous spines on both margins. 



