247 
4 null, loiiy (from t h l- eastern pari u f t h e G u 1 f of M exic o 
and northern Cuba n o r t li w a r d along the eastern coast of 
North America to t Ii e fishing banks of Newfoundland; 
223—1219 Metres) . . . . , citbensis 
c'- ossicles of the IBr series and first two brachials strongly convex dorsally 
and laterally, just in lateral contact with their neighbors but not flattened 
against them; arms },■] mm. long; cirri with 27 — 33 segments; P, with 
21 — 23 segments; P., with 13 segments, half as long as P, (from the 
Bay of Biscay northward to the western coast of Ireland 
[53°58' N., 12^24' \V.|; 687—2030 Metres) delicata 
b- not more than 20 cirrus segments of which the distalmost are (slightly or 
considerably) longer than broad 
c^ 20 cirrus sesfments of which the lonorest is a little more than twice as 
long as broad, and the distal are only slightly longer than broad; Pj 
7 mm. long with 20 segments of which the basal three or four are short, 
the distal elono-ated ; P, shorter, with 1 2 seijments of which the basal 
four arc short; distal pinnules 9 mm. long; arms 65 mm. long; cirri 
10 mm. long (southwestern Japan; "Korea"; 650 Metres) . . isis 
c" 12 — 15 cirrus segments which are greatly elongated, the antepenultimate 
being over three times as long as its proximal diameter and the penultimate 
about twice as long as broad; P^ very slender and filiform, with the 
first three segments about as long as broad ; P., and following .with a 
gonad; arms 13 mm. long; cirri 4 mm. long (coast of Brazil; 1472 
Metres) minutissima 
1. TricJiometra vexator A. H. Clark. 
A. H. Clark. Proc. U.S. National Museum, vol. 34, 1908, p. 217 [Trichometra vexator). 
2. Trichometra cubeiisis (Pourtales). 
POURTALES. Bull. Mus. Comp. Zool., vol. i, 1869, N" 11, p. 356 [Antedon cubensis, part; of 
the two specimens here described the larger is the type of this species, the smaller of 
Atelecrinus cubensis P. H. Carpenter [= Atelecrinus balanoides\ ). 
P. II. Carpenter. Bull. Mus. Comp. Zool., vol. 9, 1881, N" 4, p. 165 {^Antedon cubensis). 
A. H. Clark. Proc. U.S. National Museum, vol. 34, 1908, p. 229 (Trichometra aspera). 
Fisheries, Ireland, Sci. Invest. 1912, N" 4, p. 3 (North American species o{ Trichometra 
most closely related to T. hibernica). 
Harii.AUB. Memoirs Mus. Comp. Zool., vol. 27, 1912, N" 4, p. 385 (part), pi. 9, figs. 10—12 
(but not fig. 13); pi. 15, fig. 3 (but not fig. 4) [Antedon cubensis; fig. 13, pi. 9, and fig. 4, 
pi. 15, represent Coccovtetra nigrolineata). 
The following reference refers to Atelecrimis balatioides : 
Pourtalks. Bull. Mus. Comp. Zool., vol. 5, 1879, N" 9, pp. 214, 215 [Antedon cubensis). 
