2 19 



with smooth borders; cirrri with the antepenultimate and preceding segments 

 markedly longer than broad; arms 40 mm. to 100 mm. long; cirri XXX — L, 

 17 — 19, 10 mm. to 14 mm. long; F l about 10 mm. long with 40 segments; 

 P 2 about the same length, or slightly shorter, with 20 segments (from 

 North Carolina southward to Sombrero and Cuba: 13 — 1029 



Me tres). - hagenii 



b 2 seernents in the distal half of P, becomingr eloncrated, twice as lontf as 

 broad, with very spinous distal edges ; division series and proximal portion 

 of the arms with a prominent black median line; remainder of arms with a 

 large median black spot on each syzygial pair; ossicles of the division series 

 and brachials with prominently everted and very spinous borders; cirri with 

 the antepenultimate and several of the preceding segments very slightly, if 

 at all, longer than broad; arms probably from 50 mm. to 60 mm. long; 

 cirri XXX — XL, 17 — 23, 16 mm. ,to 18 mm. long; P x 7.5 mm. long with 

 35+ segments; P^ 7.0 mm. long with 15 segments (Puerto Rico to 

 Vucatan, and southward to Jamaica; 41 — 367 Metres) . . . nigrolineata 



1 . Coccometra guttata nov. sp. 



-Albatross" Stat. 2134. i9°56'o6"N., 75° 47' 32" VV. 455 Metres. 1 Ex. 



The centrodorsal is small hemispherical or subconical, the polar area rather small 

 and papillose. 



The cirri are XXX — XL, 24 — 28, very slender, 25 mm. long; the first two segments 

 are short, the third is about half again as long as broad, and the remainder are four or five 

 times as long as broad, or even longer; the antepenultimate segment tapers slightly from the 

 proximal to the distal end; the penultimate segment is about half as long, and tapers to the 

 base of the terminal claw; the last is about half as long as the penultimate segment, perfectly 

 straight, and tapers to a sharp point; the cirri are perfectly smooth with no tracé of dorsal 

 processes on the distal segments, nor of an opposing spine. 



There are no basal rays. The radials are just visible in the median line, extending up 

 in the interradial angles in the form of a triangle. The IBrj are oblong, about two and one 

 half times as broad as long, widely separated laterally. The IBr, (axillaries) are almost 

 triangular, with the posterior edge slightly convex and the anterior angle long and acute ; 

 they are somewhat broader than the IBr r 



The ten arms are from 60 mm. to 70 mm. long. The first brachial is wedge-shaped, 

 longer outwardly than inwardly, the inner sides in apposition basally; the second brachial is 

 similar, but rather larger and more irregular in shape; the first syzygial pair (composed of the 

 third and fourth brachials) is approximately as long as wide; the following brachials to the 

 eighth are slightly wedge-shaped, not quite so long as broad; the second syzygial pair (com- 

 prising the ninth and tenth brachials) is not quite twice as long as broad; the succeeding 

 brachials are obliquely wedge-shaped, about as long as, or rather longer than, broad, becoming 



