00 
c'- cirri shorter, not nujre than one third of the arm length; longest cirrus 
segments not longer than broad; synarthrial tubercles not developed 
d^ 35 cirrus segments; 20 arms (so u t h cr n J a pa n) multicolor 
d- 39 — 55 cirrus segments 
e' cirri slender and short, less than one fifth of the arm length, with 
42 — 55 segments; 20 arms (Andaman Islands) spinosissivia 
e- cirri longer, one fourth to one third of the arm length : 39 — 46 
cirrus segments 
f arms very narrow; distal edges of the brachials rather strongly 
produced; distal edges of the cirrus segments prominent; cirri 
more than one third of the arm length, and rather slender; first 
segment of P, with a high rounded dorsal process, and from 
half again to twice as broad as the second ; first segment of Po 
with a prominent high dorsal process; 15 — 20 arms (Philip- 
pine and Lesser S u n d a I s 1 a n d s) alccto 
f- arms broader and more rounded dorsallv; distal edges of the 
brachials less produced ; cirri less than one third of the arm 
length, and stouter, the distal edges of the segments not modified; 
first segment of P, not produced dorsally, and only slightly 
broader than the second ; first segment of P^ without a dorsal 
process; 20 arms (western Australia) conamims 
I. Neomctra diana A. H. Clark. 
A. H. Clark. Zool. Anzeiger, Rd. 39, 1912, N" 11/12, p. 422 [Calometra diana). 
Stat. 260. 5°36'.5S., I32°55'.2E. North of Kei Island. 90 Metres, i Ex. 
Stat. 294. 10° 12.2 5., 124°27'.3E. South of Timor, -ji Metres. 11 Ex. 
The centrodorsal is thin discoidal, the flat dorsal pole 3.5 mm. in diameter; the cirrus 
sockets are arranged in a single fairly regular marginal row. 
The cirri are XVI, 42—43, 30 mm. to 33 mm. long; the first segment is very short, 
the second nearly or quite twice as broad as long, the third half again as broad as long, the 
fourth from one third to one half again as long as broad, the fifth-tenth or -eleventh about 
twice as long as broad; the following very gradually decrease in length, beyond the eighteenth 
or twentieth being about as long as the proximal diameter, and the last fifteen or sixteen 
slightly broader than long; the cirri tajjer slightly at the tip so that the last three segments 
before the penultimate are as long as broad, or slightly longer; all of the segments have slightly 
produced and overlapping distal ends; the longer proximal segments are slightly constricted 
centrally: on the fourth or fifth a slight subterminal tubercle appears which very slowly increases 
in size and involves more and more of the dorsal surface of the segments so that the short 
outer segments possess the high carinate spines characteristic of the species of the family. As 
a whole the cirri are rather slender, and resemble those of Calometra discoidea. 
