'7' s 



V-shaped groove; 10 -13 arms [75 mm. long; IIBr 2; cirri 

 \\ XXV, 20 25, most of the segments longer than broad, 

 the outer without terminal tubercles (Kei Islands; 252 Metres) flexilis 

 t' the >l«>i's.il surface of the ossicles of the IBr series and first 

 two brachials is not • l, but bears more or less prominent 



oval or rounded median tubercles 



dlvision series all 2: ossicles of the division series and first 

 two brachials with slightly developed broad median tubercles, 

 or none at all; there is no eversion of the adjoining lateral 

 edges of these ossicles; cirri very long and stout. XX — L, 

 usually 28—31), 55 mm. to 70 mm. long, the 

 outer segments markedly longer than broad; 12 — 16 arms 

 ' mm. Ion- (Sahul Mank, the Kei Islands and 



Ti mor; 252 — 520 Metres) robusta 



IIBr series 4 (3 + 4); ossicles of the division series and first 

 two brachials with large and prominent oval or rounded 

 median tubercles, with rise more or less abruptly; the 

 adjoining lateral edges of these ossirlcs are slightly everted; 

 cirri XX XXIII, 20 — 22, moderate in size. rather slender. 

 the longest proximal segments about half again as long as 

 broad, those in the terminal third slightly longer than broad, 

 the last two or three before the penultimate with slight 

 traces of dorsal tubercles 



h 1 ossicles of tke division series and first two brachials with 

 low broad median tubercles; proximal subquadrangular 

 brachials with the distal ends thickened and everted, and 

 with small rounded median tubercles; remaining brachials 

 with rather prominently overlapping distal ends; 12 arms 

 170 mm. long; cirri XXIII, 20 — 21, 30 mm. to 34 mm. 

 long (Andaman Islands; 1024 Metres) . . . . invenusta 

 h of the division series and firsl two brachials with 

 smaller, prominent, rather high median tubercles; proximal 

 subquadrangular brachials unmodified; brachials bevond 

 without prominent distal ends; 13 arms 170 mm. Ion-; 

 cirri XX, 21 22, 25 mm. to 36 mm. long (Laccadive 

 Islands; 120., Metres) macilenta 



1 Perissometra angusticalyx (I'. II. Carpenter). 



P. II. Carpenter. "Challenger" Reports. Comatulae, 1888, p. 242, pi. 2. fig. \a—d, pi. 50, 



figs. 1 ;B, p. tedon angusticalyx 



A. II. Clark. Smithsonian Miscellaneous Collections, vol l 1. [913, X' 15, p. 47 (Packylometra 



angiisti 



