192 
b^ cirri relatively slender, with elongated segments of which al but the basal 
are twice as long as broad, and often longer (Kei Islands And Timor; 
520 — 595 Metres) priamits 
b- cirri stouter, few or none of the segments longer than broad 
c^ larger and stouter (arms from 65 mm. to 75 mm. long); proximal cirrus 
segments slightly longer than broad, distal slightly broader than long 
(Kei Islands and Timor; 252 — 520 ^letres) parvipinna 
z- smaller and more delicate (arms 45 mm. long); al of the cirrus segments 
about as long as broad (southwestern Japan; iSo — 243 Metres) hcpburniana 
I. Strotometra orjiatissimns A. H. Clark. 
A. H. Clark. Proc. Biol. Soc. Washington, vol. 25, 191 2, p. 82. 
Stat. 122. i°58'.5N., i25^o'.5 E. Celebes Sea. 1 165 — 1264 Metres, i Ex. 
The centrodorsal is flattened hemispherical, 2.5. mm. in diameter at the base; the dorsal 
pole is slightly convex; the cirrus sockets are in one and a partial second marginal row. 
The cirri are about XV (there are twenty-two cirrus sockets, but some are not full 
size); the longest cirrus stump is 4.5 mm. long to the distal dorsal edge of the fifth (the last 
remaining) segment; the first segment is about twice as broad as long, the second has the 
median length about equal to the median breadth, and is centrally constricted with the distal 
border produced, especially ventrally, where it o\'erlaps the proximal end of the succeeding 
segment; the third is about twice as long as the proximal diameter, strongly constricted 
centrally with prominent distal ends like those of the second; the fourth is about three times 
as long as the median width, similar to the third; the fifth 
is similar to the fourth but not quite so constricted centrally 
and hence appearing slightly broader in lateral view. 
The radials are just visible over the edge of the 
centrodorsal. 
The IBrj are short, about four times as broad as 
the median length, with the proximal border produced into 
a thin straight margin and the lateral borders slightly more 
produced, and turned outward. 
The IBr, (axillaries) are broadly V-shaped (inverted), 
with the lateral edges, which are half again as long as 
those of the IBr^, turned outward, unmodified, or with two 
or three broad scallops ; the lateral thirds of the proximal 
border are produced and extended downward over the distal 
border of the IBr^, and have a scalloped or tubercular border which is nearly parallel to the 
concave distal edge opposite; the distal edges of the axillaries are plain and unmodified. 
The 10 arms arc about 40 mm. lono-. 
Fig. 10. 
Dorsal view of the central portion of a specimen 
of Strolometra ornalissimus from Stat. 122. X 4- 
(Courtesy of the U. S. National Museum). 
