Tor. | A. H. CiarK: Crinoids from the Indian Ocean. 269 
HETEROMETRA PULCHRA, A H. Clark. 
Arrakan Coast. - Two small broken specimens. 
Family STEPHANOMETRID-. 
STEPHANOMETRA INDICA (K. A. Smith). 
8° 51’ 30” N. lat., 81° 11’ 52” E. long.; 28 fathoms.—-Two 
specimens ; P, has fifteen segments. 
Family MARIAMETRIDA. 
DICHROMETRA PROTECTUS (Liitken). 
Indta.—One specimen with thirty arms. 
Family COLOBOMETRID. 
DECAMETRA MOEBIUSI, A. H. Clark. 
? India.—One specimen. 
COLOBOMETRA DISCOLOR, A. H. Clark. 
Off Table Island, Andamans , 15-35 fathoms.—One specimen. 
PROMETRA BREVICIRRA, A. H. Clark. 
? India.—One specimen. 
OLIGOMETRA INTERMEDIA, sp. nov. 
The centrodorsal is small, discoidal, the dorsal pole flat, 
papillose, o°8 mm. in diameter. 
The cirri are very short, very stout, and strongly curved, IX, 
IO-I1, 2°5 mm. long; the earlier segments are broader than long, 
but the sixth and following are about as broad as long; the 
second segment has the distal dorsal edge produced and finely 
spinous, this becoming on the fourth a median transverse ridge 
with prominent lateral angles which project slightly beyond the 
lateral profile of the segment and encroach slightly on the lateral 
surface; on the outer segments this transverse ridge becomes 
narrower and partially resolves itself into paired transversely 
elongate spines, at the same time moving to a position proximal 
to median ; here there may be an eversion of the median part of 
the distal dorsal edge of the segments so that the segments may 
present more or less of the ‘‘ bidentate’’ appearance characteris- 
tic of O. adeone and O. marginata. 
The ten arms are about 18 mm. long; the division series and 
arms in general resemble those of O. serripinna, but the ossicles of 
the IBr series and the first brachials have broad and prominent 
ventrolateral processes as in the species of S/ebhanometra. 
