ANNOTATED LIST. 23 
course much more critical study of the comatulid and its natural enemies is necessary 
before the truth can be determined. 
Mr. A. H. Clark (1918, pp. 100, 101) regards brachypecha as a synonym of L. protecta, 
which according to his interpretation is a protean species indeed. He even places his own 
species, Himerometra heliaster, in the synonymy of protecta, but a reéxamination of the 
holotype of that species, which is in the Museum of Comparative Zodlogy collection, shows 
it is not a Lamprometra at all, so it can hardly be synonymous with protecta.!. There are 
specimens of L. protecta in the Museum of Comparative Zoélogy from Ceylon and from the 
Philippines and I see no ground for considering brachypecha identical with them; the differ- 
ences are obvious. There is no evidence that protecta occurs in the Torres Strait region or 
elsewhere on the coast of Australia. On the other hand a dry comatulid in the Museum 
of Comparative Zodlogy Collection from Fiji seems to be brachypecha and Mr. Clark lists 
protecta from Fiji. Perhaps intensive reef-work at Fiji would settle the question as to the 
relationship of the two forms. 
The holotype of brachypecha is M. C. Z. No. 551, while the paratypes are Nos. 590 
and 591. The latter is the original of plate 2, figure 1. Mr. Clark says, in litt., of the holo- 
type: “A form of L. protectus with the lower pinnules rather‘more slender than usual.” 
Lamprometra gyges. 
Antedon gyges Bell. 1884. Alert Rep., p. 160, pl. xii, figs. B, a, b. 
Lamprometra gyges A. H. Clark. 1913. Proce. Biol. Soe. Wash., 26, p. 144. 
Lamprometra tenera H. L. Clark. 1915. Carnegie Inst. Wash. Pub. No. 212, p. 104. 
(Plate 1, Figure 4; Plate 21, Figures 4 and 5; Plate 22, Figure 3.) 
We found only one comatulid at Mer, which can be referred to this species, and even 
this one (M. C. Z. No. 593) is strikingly different from four dark-colored specimens which 
Mr. Frank A. Potts, of our party, collected on a reef north of Mabuag, Torres Strait, in 
November 1913, and which Mr. A. H. Clark kindly identified as gyges. The specimen 
from Mer has 27 arms about 60 mm. long; the color in life is shown on plate 1, figure 4, 
but in alcohol the blue and yellow tints are lost and the colors are dull reddish-purple and 
reddish-white; P2 is conspicuously the biggest pinnule on each arm, but is only about 8 
mm. long and made up of only 17 or 18 segments; none of the basal pinnules is noticeably 
flagellate at tip, as they are in the specimens from Mabuag; the cirri in the individual from 
Mer, are xx, 18-24 with evident sockets for about 10 more cirri, apparently very recently 
lost. A photograph of one of the specimens from Mabuag is shown on plates 21 and 22. 
If the individual from Mer is really conspecific with those from Mabuag, gyges must be as 
protean a species as protecta. Mr. Clark gives the distribution of gyges as the coasts of 
Australia (excepting the southern) and New Guinea. After examination of the specimen 
from Mer, Mr. Clark considers it gyges. 
COLOBOMETRID/E. 
Oligometra anisa. 
H. L. Clark. 1915. Carnegie Inst. Wash. Pub. No. 212, p. 105. 
(Plate 1, Figure 10; Plate 4, Figures 1, 3; Plate 21, Figures 1 to 3; Plate 36, Figures 1a to e.) 
The great diversity in color shown by this species led me to suppose I had found several 
species of 10-armed colobometrids at Mer, but critical study in Cambridge brought me to 
the conclusion that all represent a single species. In spite of my somewhat detailed descrip- 
tion of the pinnules, Mr. A. H. Clark puts anisa in the synonymy of Oligometrides adeone, 
whereas it is evidently an Oligometra. Even after examination of the holotype (M. C. Z. 
No. 594) and all the other specimens (M. C. Z. Nos. 552, 595 to 598), Mr. Clark insists 
1 Mr. Clark after reéxamination of his type considers it a specimen of Stephanometra monacantha. 
