2382 Horr & Beaumonr—Survey of Fishing-grounds, W. Coast of Ireland, 1890-91. 
Genus Parerythrops, G. O. Sars, Monog. over Mysider, Pt. I., zee Pt. III. 
Nematopus, G. O. Sars. 
Liyes short, not flattened, nearly globose, remote from each other; pigment 
of dull fulvous colour, not soluble in spirits. Antennal scale very short; external 
margin not ciliated, terminating in a spine-point. Legs of moderate length, 
rather robust; tarsus of (about?) three articulations, besides the stout nail. TZelson 
elongate, sub-triangular; lateral margins entire; apex narrowly truncate, beset 
with four slender spines and two sete. Pleopods in female small, simple; in 
male first pair small, simple; remaining pairs biramous, natatory. (Abbreviated 
from G. O. Sars.) 
Parerythrops obesa, G. O. Sars. 
IAL, Siting 1S, By 3. 
Parerythrops obesa, G. O. Sars, Carcinolog. Bidrag. Norg. Faun., I. 
Monog. over Mysider, 1870, p. 41. 
Curapace of about equal horizontal width throughout, the greatest width being 
much more than half the length; anterior margin produced so as to form nearly 
aright angle. Pleon less than half as wide as cephalothorax, its last segment 
longer than the others. yes large, sub-globose; internal margin but slightly 
emarginate. Antennule, peduncle a little longer than the eye; its distal articula- 
tion longer than the united length of the two proximal. Antennal scale a Iittle 
longer than peduncle of antennule, sub-rhomboidal, about three times as long as 
wide; outer margin terminating in a spine, beyond which the linguiform apex is 
produced so as to occupy nearly half the length of the scale. e/son nearly equal 
in length to the last segment of abdomen; elongate, sub-triangular, greatest 
width much less than length; lateral margins nearly straight ; apex very narrow, 
squarely truncate; outer pair of terminal spines not half as long as the inner 
pair. Uropods, outer about one-third longer than inner; the latter with about 
20 strong spines occupying the greater part of its inner margin. Pigment of 
adult bright red. Length of adult female about 13 mm., of male about 14 mm. 
(After G. O. Sars.) 
Survey.—Station 115. Off the Skelligs, 62 to 52 fathoms, mud and sand. 
August 20th, 1890. 
No Previous British Record. 
Distribution.—Norway ; Lofoten ; Finmark, 30 to 200 fathoms (G. O. 8.). 
