255 



three times as long as the proximal width, the penultimate twice as 

 long- as broad; distal edges of the cirrus segments much expanded; 

 cirri about XXX, 15 — 18; arms about 30 mm. long; P l slender and 

 delicate, with 10 — 12 elongated segments; P„ and the following pin- 

 nules longer, with stouter segments and a gonad (between Marion 



Island and the Crozets; 2880 Metres) abyssorum 



c 2 cirrus segments much elongated proximally but becoming shorter 

 distall}' so that the last two are never more than twice as long as 

 the proximal width; distal edges of the cirrus segments, especially of 

 the outer, less produced 



d 1 distal cirrus segments shorter, the last three or four being less 

 than twice as long as broad 

 e 1 centrodorsal hemispherical ; cirri XXV — XXXV, 1 5 ; arms 25 mm. 



long (southern Japan; 1395 Metres) cypris 



e~ centrodorsal much flattened, almost discoidal; cirri XL — LX; 

 arms between 30 mm. and 45 mm. long 



f 1 cirri XL — XLV, 13 — 17 (usually 15), 8 mm. long; arms 

 about 45 mm. long (Yezo Strait, Japan; 540 — 959 



Metres) comaster 



f 3 cirri LV — LX; arms probably between 30 mm. and 35 mm. 

 long (sou th west of Cape Comorin, the southern 



tip of India; 774 Metres) p/ana 1 ) 



d* distal' cirrus segments longer, the third and fourth from the end of 

 the cirrus being distinctly more than twice as long as broad 

 e 1 P x has 15 — 20 segments 



f 1 IBr series and first two brachials very strongly convex dorsally, 

 entirely and widely free laterally; IBi-j with strongly converging 

 sides, the lateral angles of the axillaries projecting for a con- 

 siderable distance beyond their distal angles ; axillaries about 

 as broad as long; cirri about XL, 1,5 — 16; cirrus segments 

 more elongate, the proximal with more strongly produced 

 distal ends (south of Sumbawa; 959 Metres). . . . thysbe 

 f 2 IBr series and first two brachials in lateral contact; axillaries 

 much broader than long; cirri XXV — XXXV, 15; distal 

 cirrus segments less elongate, the proximal with less strongly 

 produced distal ends (northeast of New Zealand and 

 near the Kermadec Lslands; 1134—1260 Metres) . alternata 

 ê Pj has 11 segments; cirri XXX— LX, 14; arms about 23 mm. 



long (western Bering Sea; 3178 Metres) brevicirra 



I) The cirri of this species are not known, but it seems to belong here. 



