64 
I. Catoptometra ophiura A. H. Clark. 
A. H. Clark. Proc. U. S. National Museum, vol. 39, 191 1, p. 539. 
Stat. 49a. 8°23'.5S., 1 19° 4.6 E. 69 Metres. 2 Ex. 
Stat. 294. io°i2'.2S., I24''27'.3E. Ti Metres, i Ex. 
All the specimens are badly broken. One of those from Stat. 49-^ has the centrodorsal 
broad and flat, discoidal, with the dorsal pole 6.5 mm. in diameter marked with faint radiating 
lines and pitted in the centre; the cirri are XXX, 17 — 19, 23 mm. or 24 mm. long; the cirri, 
and in fact the whole animal, are less robust than those of the type series. 
The other specimen is slightly smaller, but exactly similar; the dorsal pole of the centro- 
dorsal is 6 mm. in diameter; the cirri are XXVII, 17, 20 mm. long. 
The arm bases, centrodorsal and cirri are light flesh colour, the latter becoming pinkish 
distally; the arms beyond the second syzygy are bright yellow-orange, regularly banded with 
bright red as in C. riidrojiava and in C. magnifica. 
The specimen from Stat. 294 has 13 arms; the three IIBr series are 4 (34-4); the 
dorsal pole of the centrodorsal is 3 mm. in diameter; the cirri are XX, 16, 20 mm. to 22 mm. 
long. This example resembles the preceding, but the centrodorsal is only half as broad ; con- 
sequently the cirri appear shorter and more of the division series is visible. 
Eudiocrinus P. H. Carpenter. 
Key to the Species of the Genus Eudiocrinus. 
a^ Cirri very long, composed of much elongated segments of which the longest 
are four times as long as the median diameter or longer, and the distal are 
twice as long as broad; enlarged proximal pinnules stout basally, very long, 
tapering gradually to a delicate, almost flagellate, tip, and composed of 1 5 
segments (Moluccas) jmiceus 
■a? Cirri short, the longest segments never more than twice as long as broad, the 
distal segments about as long as broad 
b^ none of the cirrus segments are longer than broad 
c' Pa, though elongated and stiffened, is slender like the succeeding 
pinnules, and is composed of 17 segments, of which the third and 
fourth are half again as long as broad, and the outer three or four 
times as long as broad (LesserSunda Islands) pinnattis 
c^ Pa is enlarged as well as stiffened, and is composed of 1 1 or 1 2 
segments of which the first four are broader than long and the outer 
are about twice as long as broad (southernjapan) variegattcs 
b- the longer cirrus segments are about twice as long as the median diameter, 
the distal about as long as broad 
c^ the first segment of Pc bears a very large spatulate or fan-shaped 
process as high as its lateral diameter, and the following segments 
