1 67 



distal borders with very prominent short blunt thorns, but without 

 spines on the clorsal surface; cirri XV — XXII, "etwas über 60", 

 about 40 mm. long; 10 — 12 arms which, with the division series, 

 are narrow and very strongly and evenly rounded dorsally ; IIBr 

 series 2 (Galapagos Islands to Panama; 588 — 1407 Metres) 

 d 2 size medium; arms 60 mm. to 95 mm. long; the ossicles of the 

 division series and the lower brachials are not bordered with very 

 prominent short blunt thorns 



e 1 ossicles of the division series and four or five lowest brachials 

 thickly beset with very numerous fine hair-like spines ; division 

 series and arms narrow and very strongly rounded dorsally, only 

 slightly flattened against their neighbors; cirri XL — XLV, 50, 

 33 mm. long; 10 — 11 arms 95 mm. long; IIBr series 2 (western 



Bering Sea; 1883 Metres) villosa 



e' 2 dorsal surface of the ossicles of the division series and lower 

 brachials nearly or quite devoid of spines; division series and 

 arm bases broad, very slightly convex dorsally, broadly and 

 sharply flattened against their neighbors 



f 1 ossicles of the IBr series and first two brachials slightly 

 carinate and more or less fringed with small spines ; a few 

 spines on the dorsal surface of the segments, particularly 

 on the lovv rounded median keel; cirri XX, 50 — 55, 30 mm. 

 long; 10 arms 60 mm. long (Mean gi s Islands; 900 Metres) pergracilis 

 f 2 ossicles of the IBr series and first two brachials swollen in 

 the centre, but not carinate, and without spines; cirri XII — XV, 

 50, 30 mm. long; 10 — 12 arms 60 mm. long (Portugal 

 to the Canary Islands-, 900 — 2165 Metres). . . . lusitanica 

 c 2 cirri arranged in 10 definite columns, two in each radial area of the 

 centrodorsal ; the radial areas of the centrodorsal are well differentiated 

 d' 34 — 46 cirrus segments; 10 arms only 



e 1 IBrj with the distal edge prominently everted and with about 

 six or eight irregular dentations which have numerous fine spines 

 at their tips; axillaries with the proximal edge like the distal 

 edge of the. IBr x , and the distal edge with a more regular 

 finely spinous margin; cirri XX, 34 — 46, 40 mm. long (Mal- 



dive Islands; 378 Metres) marginata 



e 3 no eversion of the borders of the ossicles of the IBr series, or 

 of the first two brachials, which are not carinate, but are 

 uniformly beset with very fine spines; basal portion of the 

 animal constricted; cirri XX, about 40 ; arms 40 mm. long 

 (southern Japan; 621 Metres) latipinna 



