Rev. A. M. Norman on Crustacea Cumacea. 67 
and 2nd with four such setaj on inner margin and three ter¬ 
minal setEe; outer margin without setae. Length rather more 
than 8 millims. 
One taken, c Porcupine,’ 1869, off Rockall, in 109 fathoms. 
Genus Spencebatea, n. g. 
(Named after Mr. 0. Spence Bate.) 
Characters of Male. —General aspect that of Diastylis. Five 
segments of cephalothorax exposed behind the carapace. All 
feet, except the last, palpigerous. No feet on pleon. Telson 
rudimentary (as in Eudorella). Uropods with both branches 
two-jointed. Female unknown. 
Spencebatea abyssicola , n. sp. 
Male. Cephalothorax , viewed laterally, long ovate, the 
upper margin a bold gradual curve from the rostrum to the 
last segment. Carapace three fifths of the length of entire 
cephalothorax, shallow and of nearly equal depth throughout; 
dorsal margin evenly arched ; lateral margin inarched and 
exposing all the feet to their very bases, entire throughout 
(i. e. not denticulated) ; rostrum very short, suddenly and 
broadly truncated, its inner sheath projecting considerably 
beyond tire outer ; entire surface of carapace showing a struc¬ 
ture composed of hexagonal cells, not at all spinous; but a 
few hairs are scattered on carapace, free segments, and pleon. 
Last cephalothoracic segment having a pair of spines on the 
ventral surface between the slender legs ; a pair of minute 
spine-like points are also present on the back of this segment. 
Telson rudimentary. Uropods greatly developed, equal in 
length to the last four abdominal segments; peduncle much 
longer than the rami, with eight cilium-tipped spines on the 
inner margin ; inner branch consisting of a long first joint 
having eight long spines on the inner margin, and a terminal 
greatly developed spine, which might be considered a second 
joint, and has been so called in the generic description ; outer 
branch much smaller, shorter and more slender, 1st joint 
short, 2nd with one minute spine on inner and one small 
seta on outer margin, terminating in two slender spines, one 
of which is of great length and very slender. 
A very small species, only measuring 4 millims. 
A single specimen, 1 Porcupine,’ 1869, Station 19, west 
of Donegal Bay, lat. 54° 53' N., long. 10° 5& W., 1360 
fathoms. 
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