mm. in length; the cirri are XIV, lo, 7 mm. to 9 mm. long; the arms are moderately stout, 
five grooved and five ungrooved ; the colour is yellow brown with a narrow mediodorsal line 
of lighter; the pinnules are deep violet; the smaller specimen has the arms 80 mm. long, 
moderately swollen, and the cirri XIII. 
Stat. 282; the anterior arms are 150 mm. long and the posterior 70 mm.; four of the 
arms are ungrooved; the arms are very stout, especial))- the posterior; the cirri are stout and 
strongly Curved, XII, 12 — 13. 
Stat. 285 ; the largest example has the anterior arms 95 mm. long and the posterior 
45 mm.; the arms are moderately stout; si.\ are grooved and four are ungrooved; the cirri 
are XIII; a second individual is similar, but slightly smaller; the last is small, with the arms 
about 20 mm. long; the pseudosyzygy between the elements of the IBr series and that between 
the first two brachials are perfectly developed. 
Stat. 294; one young specimen. 
.Stat. 299; one specimen with moderately stout arms 115 mm. long. 
This series of specimens shows that the pseudosyzygy between the elements of the IBr 
series and the first two brachials is perfected at a very early age, and furnishes an important 
generic character. Furthermore the brachials of the species of Comatula always have smooth 
edges, while those of the most closely allied genus, Comactinia, have spinose edges. In Coma- 
tula purptwea the characteristic arrangement of the cirri is evident in very small individuals. 
Comatulides A. H. Clark. 
Key to the Species of the Genus Comatulides. 
a^ Cirri XXII — XXIV, 12 — 15; division series and proximal portion of arms without 
synarthrial or articular tubercles (Lesser Sun da and Kei Islands) . . . aitstralis 
a" Cirri XL, 16 — 17; division series and proximal portion of arms rugged, with 
strongly developed synarthrial and articular tubercles (so uthwest em Ja pan) . decaineros 
I. Comahilides australis (A. H. Clark). 
A. H. Clark. Proc. Biol. Soc. Washington, vol. 25, 1912, p. 21 [Coinmia australis). 
Stat. 267. 5°54'S., i32°56'.7E. 984 Metres, i Ex. 
Stat. 297. io°39S., 1 23° 40' E. 520 ]\Ietres. i Ex. 
The specimen from Stat. 267 is slightly larger than the type (from Stat. 297), having 
the arms about 100 mm. long; the centrodorsal is thin discoidal, very broad, with the circular 
dorsal pole flat, 4.5 mm. in diameter; the cirri are XXII (with a number undeveloped), 13 — 
15 (usually 14 — 15), 15 mm. to 19 mm. long, arranged in a single irregular marginal row; 
Pj is 20 mm. long ; P., is 1 8 mm. long ; the elements of the division series and the brachials 
and pinnulars are covered with a prominent fine dermal granulation. 
Stat. 297 ; the centrodorsal is thin discoidal with the bare dorsal pole flat, 2.0 mm. in 
diameter; the cirrus sockets are arranged in three closely crowded roughly alternating marginal 
and submareinal rows. 
