422 
processes of the radials these produced borders are (viewed ventrally) 
parallel as far as the ITBr axillary, but as the ITBr series make a very 
considerable angle to each other oe disappear dorsally at the IBr 
axillary. 
There are from thirty to forty arms 70 mm to 75 mm long; extra 
axillaries are always external; the arms resemble those of N. multicolor. 
P, is 10 mm or 11 mm long with twenty-nine segments, slender, 
but not so weak as usual in the genus, more or less stiffened; the first 
two segments are enormously enlarged, subequal, three to four times 
as broad as long, nearly twice as large as the first two segments of Py; 
the third segment occupies about one third of the distal edge of the 
second and is about as long as broad; the following segments are slightly 
longer than broad, becoming about as long as broad in the distal half 
of the pinnule. P, is 11 mm or 12 mm long, straight and stiff, though 
not particularly enlarged, with eighteen to shennan segments ui which 
the fourth and following are about twice as long as broad; the first is 
about three times as broad as long in the median line, and about twice 
as broad basally as the third; the second is about as long; but not quite 
so broad, and bears a slightly rounded carinate process; the third is 
about half again as long as broad. P; is 15 mm long with seventeen 
segments which are more elongate than those of P., being nearly or quite 
three times as long as broad; the pinnule is in general similar to Py, 
but is very. slightly stouter with the first two segments only very slightly 
enlarged and the second with the carinate process much reduced; the 
third segment is narrowly carinate, at least basally. P, is 11 mm long 
with fifteen segments, those beyond the third very long; the second to 
the fourth are slightly carinate. P, is 9 mm long with thirteen segments 
resembling P, but with slightly shorter segments. 
Type Locality. — »Siboga« Station No. 305. 
Calometra diana sp. nov. 
The centrodorsal is thin discoidal, the flat dorsal pole 3,5 mm in 
diameter; the cirrus sockets are arranged in a single fairly regular mar- 
ginal row. 
The cirri are X VI, 42—43, 30 mm to 33 mm long, rather slender, 
resembling those of C. discoidea; the fifth-tenth segments, which are 
the longest, are about twice as long as broad; the distal fifteen or six- 
teen are slightly broader than long, but the cirri taper slightly at the 
tip so that the last three before the penultimate are as long as broad 
or slightly longer; the earlier longer segments show a slight tendency 
to become »dice-box shaped, « and the short distal segments possess the 
high carinate spines characteristic of the family. 
