132 
I . Tropiometra afra (Hartlaub). 
Hartlauh. Nova Acta der Ksl. Leop. -Carol, deutschen Akad. der Naturforsch., vol. 58, 1890, 
N" I, p. 86, Taf. 5, Fig. 50, 52 (Antedon afra). 
A. H. Clark. Proc U.S. Nat. Mus., vol. 34, 1908, p. 315 (specimen from the South Pacific, 
but not those from Japan). 
The Recent Crinoids of Australia, 191 1, p. 780. 
Smithsonian Miscellaneous Collections, vol. 60, 1912, N" 10, p. 28. 
Records of the Western Australian Museum, vol. i, 1914, part. 3, p. 125. 
H. L. Clark. Carnegie Institution of Washington Publication N" 212, 191 5, p. 106. 
Stat. 164. i°42'.5 S., I30°47'.5E. Between New Guinea and Misool. 32 Metres, i Ex. 
The centrodorsal is thick-discoidal, the broad dorsal pole slightly concave, 9 mm. in 
diameter. The cirri are XXVII, 33 — 35, 35 mm. to 45 mm. long. The diameter of the animal 
at the level of the third brachial is about 27 mm. The colour is violet, with large blotches 
of light yellow. 
This specimen agrees with others at hand from Australia. 
VIII. Family C.\lometridae A. H. Clark. 
Neometra A. H. Clark. 
Key to the Species of the Genus Neometra. 
a^ Dorsal processes on the outer cirrus segments triple, consisting of a median 
carination with a dorsolateral keel on either side of it; usually about 40 arms 
b^ cirri XV, 31 — 36, rather slender, about 25 mm. long (one third of the arm 
length); dorsolateral processes much lower than the median keel, developed 
only toward the tip of the cirrus; division- series with everted borders, and 
cirrus segments and brachials with produced distal edges, giving the animal 
a very rough aspect (LesserSundalslands) sibo^ac 
\r cirri XVII— XIX, 39 — 50, very stout, 35 mm. to 45 mm. (usually about 
40 mm.) long ; dorsolateral processes but little shorter and lower than the 
median keel, developed from the 15'*^ segment onward; division series, 
brachials and cirrus segments with unmodified distal edges, so that the 
animal appears smooth (west coast of Australia) gorgonia 
a" Dorsal processes on the outer cirrus segments consisting of a median keel 
.only; 30 or fewer arms 
b^ 30 arms; midventral line of the cirri sharp (Philippine Islands) . acanthaster 
\y 20 or fewer arms ; cirri ventrally rounded 
c' cirri longf, nearlv' half the arm lengfth : longest cirrus segments twice as 
long as broad ; synarthrial tubercles very high and prominent, as high 
as broad at the base; 16 — 17 arms; 42 — 50 cirrus segments (Lesser 
S u n d a I s 1 a n d s) diana 
