00 



c 3 cirri shorter, not more than one third of the arm length ; longest cirrus 

 segments not longer than broad; synarthrial tubercles not developed 



d 1 35 cirrus segments; 20 arms (sou th er n J a pa n) multicolor 



d 2 39 — 55 cirrus segments 



e 1 cirri slender and short, less than one fifth of the arm length, with 



42 — 55 segments; 20 arms (Andaman Islands) spinosissima 



e 3 cirri longer, one fourth to one third of the arm length; 39 — 46 



cirrus segments 



f 1 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 x with a high rounded dorsal process, and from 

 half again to twice as broad as the second; first segment of P 2 

 with a prominent high dorsal process ; 15 — 20 arms (Philip- 

 pine and Lesser Sun da Islands) alecto 



V- arms broader and more rounded dorsallv; distal edg-es 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 t not produced dorsally, and only slightly 

 broader than the second; first segment of P 2 without a dorsal 

 process; 20 arms (western Australia) conaminis 



1. Neometra diana A. H. Clark. 



A. H. Clark. Zool. Anzeiger, Bd. 39, 191 2, N" 11 12, p. 422 [Calometra diana). 



Stat. 260. 5°36'.5S., i32°55'.2E. North of Kei Island. 90 Metres. 1 Ex. 

 Stat. 294. io°I2'.2S., I24°27'.3E. South of Timor. 71 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 aeain 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 taper 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. 



