OF THE SIBOGA-EXPEDITION, 147 
of the IBr series and the lower brachials are in lateral 
contact except for a narrowly cross-shaped water-pore in 
the [Br series and small water-pores between the first two 
brachials; the brachials have only very slightly produced 
and very finely spinous distal ends. 
Type locality. — »Siboga” Station N°, 211. 
Trichometra brevipes, sp. nov. 
This species is nearest to 7’. remota with which it agrees 
in general structure and in the short segmented cirri; but 
it differs from that form in the spinous and everted edges 
of the ossicles of the [Br series and lower brachials. 
The centrodorsal is low conical, twice as broad basally 
as high, and bears about thirty closely crowded and irre- 
gularly placed cirrus-sockets which have very prominent rims, 
The cirri are about XXX, 18—20, about 4 mm. long; 
the first segment is very short, the second about as long 
as the median diameter, the third-fifth or -sixth the longest, 
about as long as the diameter of the expanded distal ends; 
the following gradually decrease in length so that the outer 
nine or ten are slightly broader than long; the longer 
earlier segments are constricted centrally with greatly 
expanded and overlapping distal ends, this feature rapidly 
disappearing as the segments become shorter. 
The radials are concealed ; the IBr, are extremely short, 
in close lateral apposition, the lateral edges slightly everted ; 
the axillaries are nearly as broad as long, almost triangular, 
with a moderate rounded posterior process, just in apposition 
laterally; the lower brachials are also in apposition; there 
are no water-pores; there is a faint shallow median groove 
on the ossicles of the IBr series; the edges of these and 
of the brachials are prominently everted and spinous; the 
dorsal surface of the lower brachials is also more or less 
thickly covered with very fine spines. 
Type locality. — »Siboga” Station N°, 150. 
Notes from the Leyden Museum, Vol. XXXIV. 
