ON HEBRIDEAN ClirSTACEA, ECHINODERMATA^ POLYZOA; ETC. 201 



joint, its basal portion not spined. Telson twice as long as the preceding seg- 

 ment, suddenly contracted near the base, the last part narrow and linear, 

 having four pair of lateral and two much larger terminal spines. Peduncle 

 of ui-opods narrow and slender, as long as the telson, and about one-sixth 

 longer than the rami, furnished with about eight spines on the inner margin ; 

 interior ramus slightly longer than exterior, having nine spines on the inner 

 margin (6 on first, 2 on second, and 1 on third joint), and a long terminal 

 spine ; exterior ramus terminating in three sette, of which the central is the 

 longest (the interior not quite terminal), and having four sinnes, and ono 

 other seta on the outer margin, but none on the inner. 



Length 3 lines. Dredged in Sleat Sound, and also off Tynemouth, jSTor- 

 thumberland. Nearly allied to Diastylis hi^lkata, G. 0. Sars, but apparently 

 distract. 



IjphiiJwe serrata, Korman, n. sp. 



Animal greatly elongated and very slender. Cephalothorax shallow and 

 much compressed, dorsally keeled throughout, equal in length to six abdo- 

 minal segments, and twice and a half as long as deep ; rostrum long, slightly 

 bent upwards, apex obliquely truncate, crenated and ciliated ; latero-anterior 

 margin with only two or three minute spines ; a deep sinus on the lower por- 

 tion of the front margin ; dorsal line with a crest of spines (13-20), which 

 sometimes extend almost to the posterior margin of the carapace, sometimes 

 are obsolete on the hinder portion ; the spines gradually increase in size for- 

 wards, and the two or three anterior spines are more widely separated from 

 each other than the rest. Superior antennae shorter than the rostriim, having 

 the last joint of the peduncle longer than either of the preceding, and four 

 times as long as the very short two-jointed internal filament ; external fila- 

 ment very minute, one-jointed. Second gnathopods having the lower margin 

 of the basal joint denticulate, and its lobe reachiag to the middle of the 

 third joint ; lobe of third joint smaller than is visual in the genus, but bearing 

 several long plumose setae, the most distal the longest. First pereiopods having 

 both margins of basal joint denticulated ; extended beyond the rostrum, which 

 reaches the middle of the penidtimate joint ; last and antepenultimate joints 

 subequal, and about one-third shorter than the penultimate. Second pereiopods 

 five-jointed, ha\ang a large spine at the termination of the second and third 

 joints; last joint as long as the two preceding. Telson semicircular, termi- 

 nating in spine-like points and two setae. Uropods strongly formed ; pediincle 

 of moderate length (not twice as long as last abdominal segment), furnished 

 with 12-14 long slender spines on the inner margin ; rami shorter than the 

 peduncle, and subequal ; interior with basal joint swollen, having five spines 

 on the middle margin, the distal one very lai-ge ; second joint having twelve 

 spines on the inner margin and apex, and three setae on the outer margin ; 

 all the spines of the rami are ciliated, and the two terminal spines are deve- 

 loped to such a length that they are intermediate in form between spines and 

 seta3 ; outer ramus flattened, having about twelve plumose setae on the inner 

 margin and round the apex. Length about five luies. 



Pemale specimens dredged in Sleat Sound. 



Anonyx melanophthalmus, Norman, n. sp. 



Eye black. Superior antennae having the first joint of the peduncle nearly 

 as long as the two succeeding joints taken together, filament with nine arti- 

 culations ; appendage five-jointed, the first very long, equalling the first long 

 joint of the filament. Inferior antennae having last two joints of peduncle 



