REV. A. MERLE NORMAN, M.A., ON THE CRUSTACEA. 273 
The peduncle of the external caudal appendages is armed 
with a row of short equal spines, along its inner margin. 
The inner and upper branch is three-jointed ; the first joint 
with a row of short equal spines along the inner margin, and 
two or three longer spine-like cilia, on the outer edge; the second 
joint is half the length of the first, spined on the inner, and 
with a single very small cilium on the outer edge; the third 
joint measures about half the length of the second, and ends 
in two very minute cilia. The outer and lower branch is two- 
jointed; the first joint is two thirds the length of the first joint 
of the under branch, and the second joint longer than the first, 
and reaching to the distal extremity of the second joint of the 
inner branch; both joints bear a few long, spine-like cilia on 
their margins, and the second terminates in four long, spine-like 
plumose cilia. 
Total length, a little less than half an inch. 
Dredged on soft ground 50 to 60 miles east of Tynemouth. 
This species is at once distinguished from Vaunthompsonia 
cristata and Edwardsi, and also from the nearly allied Cuma 
scorptioides and Iphithoe trispinosa by the large telson. 
Genus. CYRIANASSA, Spence Bate. 
CYRIANASSA CILIATA, n. sp. Pl. XIII, figs. 4-9. 
Duo priora abdominis segmenta pedibus natatoriis instructa. 
Antenne inferiores longissime. Telson brevissimum ter- 
tiam pedunculi appendicum caude lateralium partem haud 
superans, rotundatum, inarmatum. Pedunculus appen- 
dicum caudz lateralium interne ciliatus, ciliis plumosis; 
ramus interior biarticulatus ciliis spinisque dense obsitus, 
extremitate fortiter unguiculatéa; ramus exterior uniarti- 
culatus, planus, ciliis longissimis, annulatis atque plumosis 
instructus. 
The carapace is slightly hispid, truncate in front, and furnished 
with a toothed process at the antero-lateral margin. 
The antenne, as in the genus generally, are remarkable for 
their very great length. 
Five segments of the thorax are uncovered by the carapace. 
