270 Ieecords of the Indian Museum. [Vor Vit 
Pa is absent; P, is 2°5 mm. long with eight segments, and is 
the longest and stiffest pinnule on the arm, though it is not 
especially stout; the first segment is half again as broad as long, 
the second is about as long as broad, the third is twice as long as 
broad, the fourth and fifth are between two and one half and 
three times as long as broad; the following rapidly decrease in 
size; the third and following bear long and prominent spines at 
the prismatic angles which after the fourth are very conspicuous ; 
P, is 2 mm. long with eight segments, exactly resembling P,; P, 
is small and slender, about 1 mm. long with about eight segments ; 
the following pinnules are weak and delicate, not tapering so 
rapidly as P,. 
Locality.— Andaman Islands. 
OLIGOMETRA SERRIPINNA (P. H. Carpenter). 
‘© Investigator’’ Station No. 953; 15-25 fathoms.—One speci- 
men; the synarthrial tubercles and the processes on the lower 
pinnules are strongly marked. 
Arvakan Coast.—One small and immature specimen. 
Family TROPIOMETRID®. 
TROPIOMETRA ENCRINUS, A. H. Clark. 
Sadras.—One specimen. 
Family ANTEDONID. 
Subfamily ZENOMETRIN Z:. 
PSATHYROMETRA Major, A. H. Clark. 
‘* Investigator ’’ Station No. 115 ; 188-220 fathoms.—One small 
specimen; there are four or five cirrus sockets in the outer 
columns. 
PSATHYROMETRA MIRA, A. H. Clark. 
West of Alleppey, Travancore (9° 34’ 57” N. lat., 75° 36’ 30° 
E. long); 406 fathoms.—One specimen, not quite mature, and 
one typical specimen. 
Thirteen miles south by west from North Sentinel Island, 
Andamans ; 130-250 fathoms.—One small specimen. 
Seven miles south-east by south from Ross Island ; 265 fath- 
oms.—One small specimen. 
PSATHYROMETRA INuSITATA, A. H. Clark. 
Seven miles south-east by south from Ross Island ; 265 fath- 
oms.—One small specimen. 
