The Comatulids of Torres Strait. 105 
longer than wide, remainder wider than long; distal segments with low and 
minute longitudinal dorsal ridges; opposing claw well-marked. Arms 18, 
about 65 mm. long by 10 broad; division series all 2 without syzygies; there 
are four II Br series and four III Br; II Br series not appressed, but with 
slight lateral expansions; brachials smooth, not overlapping, wedge-shape, be- 
coming quadrate after the 30th, and at tip of arm longer than wide; syzygies 
between 3-4, 9-10, 14-15, 18-19, 23-24, and then at intervals of 7 to 10 seg- 
ments. All pinnules cylindrical; lower ones stiff and little flagellate. P, about 
6 mm. long, of 19 joints; P, much smaller, little longer than P3;, of 11 joints. 
P, the largest pinnule, 7 or 8 mm. long, of 18 joints; P, longer than P,, of 11 
joints; P; the smallest pinnule, of 10 joints; P, very similar. Succeeding 
pinnules gradually increasing in length until at middle of arm they are 6 or 7 
mm. long, with about 20 joints. Color, rich purple, with base of arms and 
a broad distal band white; pinnules often with yellowish or rusty tips; cirri, 
cream-color dorsally, deep brown on ventral side. Colors almost perfectly 
preserved in alcohol. 
A single specimen of this very handsome comatulid was found on the 
southwestern reef at Maér on the last day of our stay, October 27, 1913. It 
is well characterized by the small number of arms, the number and appearance 
of the cirri, the proportions of the lower pinnules, and the notable coloration. 
19. Oligometra anisa sp. nov. (éoa = unequal; hence, variable). 
Centro-dorsal moderately large, but notably thick, about 5 mm. in diameter, 
the bare dorsal area about 2 mm. across and minutely tuberculated. Cirri 
XxI-xx111, 15-17, relatively long (9 or 10 mm.) and stout; transverse ridges on 
distal joints minute or wanting but opposing claw marked; none of the 
segments obviously longer than wide. Arms 10, the I Br series and first 
2 brachials with well-marked ventro-lateral processes. First half dozen 
brachials more or less quadrate; succeeding, wedge-shaped, with flaring and 
slightly overlapping distal ends, becoming quadrate and longer than wide 
at tip of arm; syzygies between 3-4, 9-10, and then at intervals of 5 to 7 seg- 
ments. All pinnules more or less cylindrical. P, about 7 or 8 mm. long, of 
10 or 11 joints, moderately stiff; P, similar but often distinctly larger. Ps: and 
P, about equal, distinctly the largest and most spike-like of the pinnules, of 
13 to 15 joints, with rough and spiny distal ends. P; much shorter than Ps, but 
rather stout, of 10 or 11 joints; P, smaller, of only 8 joints. P,s the smallest 
pinnule, much shorter than P;; P, nearly equal to P.. Succeeding pinnules 
gradually longer, until at middle of arm they are 6 mm. long and have about 
20 segments. Color, very variable, ranging from clear lemon or canary- 
yellow, with hardly a purple mark, through variegated purple and yellow, or 
variegated brown and white, to finely variegated shades of gray and white. 
Colors are well preserved in alcohol. 
Excepting the comasterids, this was the commonest crinoid at Maér and 
was not infrequently met with near the outer margin of the southwestern 
reef-flat. Unfortunately it was not common enough to permit of any extended 
observations on its habits and reactions. It was not ordinarily at all active, 
but clung very tenaciously to the fragment of rock or coral to which its cirri 
attached it. The cirri are notably strong and it was frequently no easy task 
to detach them. Although no doubt related to O. carpenteri, this species is 
readily distinguished by the more numerous cirri, with fewer joints; the 
shorter arms with about half as many joints (80 in anisa); and the utterly 
different lower pinnules. 
20. Heterometra delicata sp. nov. (delicatus = soft, tender). 
Centro-dorsal relatively large, 2 mm. in diameter, low subconical, only the 
dorsal pole bare. Cirri xv, 18-19, little compressed distally, about 5 or 6 mm. 
