RECORDS OF W.A. MUSEUM. 
[129 
NEOMETRA CONAMINIS, Sp. Nov. 
Locality. Between Fremantle and Geraldton. 
Depth. 80-120 fathoms. 
Material. Four specimens. 
Description of the type specimen. The centrodorsal is of 
medium size, discoidal, the dorsal pole flat, 4-5 mm. in diameter ; 
the cirrus sockets are arranged in a single more or less irregular 
marginal row (in one of the other specimens there is also a very- 
deficient second row). 
The cirri are XIV (in the other specimens varying from XIV 
to XIX), 40-45, 25 mm. long ; the longer earlier segments are half 
again as broad as long to nearly as long as broad, and the shorter 
distal segments are about three times as broad as the median 
length, becoming longer again terminally ; the cirri are not 
particularly stout ; they taper slowly and gradually throughout 
their whole length ; on the sixth or seventh segment the median 
dorsal portion of the distal edge becomes slightly prominent ; this 
prominence rises in height and slowly extends itself proximally 
until on about the tenth there results a narrow median keel running 
the whole length of the dorsal surface ; on the succeeding segments 
this gradually increases in height, becoming the high thin median 
carination characteristic of the outer cirrus segments of the species 
of this genus ; the ventral surface of the cirri is rather narrowly 
rounded so that in cross section the cirri are seen to approach a 
rhombic shape, but with the four angles of the rhombic outline 
very broadly rounded. 
The radials are concealed in the median line, but extend 
upward in the angles of the calyx in the form of triangular processes 
of which the sides, which are about as long as the bases, are 
concave and the apices are truncated; the apices of these triangular 
processes entirely, though not very widely, separate the bases of 
the IBr.i. 
The IBr. 1 are very slightly trapezoidal, almost oblong, from 
three to four times as broad as long ; the ventrolateral edges, 
though sharp, are only very slightly if at all produced ; these 
ossicles occasionally bear an obscure low median keel ; the IBr.2 
(axillaries) are broadly pentagonal, slightly broader than long, the 
lateral edges usually slightly shorter than those of the IBr.i. 
