26l 
segments (except the basal) greatly elongated; terminal claw minute, conical 
c^ disk completely covered with small calcareous granules (New Zealand 
a nd Ne w So u t h W al es t o t he E ast I n dies) scuipcri 
c' disk naked (southern Japan to Celebes and the Paternoster 
I s 1 a n tl s) japonicits 
\y cirri of medium lentrtli or sliorl, more or less recurved throughout their 
entire length, composed of 14 — 17 segments; terminal claw recurved 
and hook-like 
c' articular tubercles very strongly developed, giving the arms a very 
rugged appearance (southern Japan) iiiberc7tlatiis 
c' articular tubercles not developed, so that the arms appear smooth 
d' disk naked (s o u t h e r n J a p a n t o t h e P h i 1 i p p i n e s) dioinedeae 
d" disk completely covered with small calcareous granules (north- 
western Africa to western Ireland; Caribbean Sea). . atlanticus 
1. Pentametrocrinits dioinedeae A. H. Clark. 
A. H. Clark. Smithsonian Miscellaneous Collections (CJuarterly Issue), vol. 52, part 2, p. 234. 
Stat. 95. 7°43'.5 N., ii9°4o'E. Sulu Archipelago. 522 Metres. 5 Ex. 
The best preserved specimen has the cirri 27 mm. long with 17 — 18 (usually 18) 
segments. It agrees well with a specimen from "Albatross" Station 5173 (between Mindoro 
and Luzon, Philippine Islands) which has the cirri 22 mm. long, composed of 14 — 16 segments, 
which are o( the same relative proportions as those of the individual under consideration, but 
is somewhat smaller. The difference in size probably accounts for the difference in the length 
of the cirri and in the number of the segments. The type of P. dioinedeae, from southwestern 
Japan, has 14 — 17 cirrus segments. 
Of the other specimens one resembles the one just noticed, and the other three are 
small. One of the latter has the cirri 15 mm. long, composed of 14 — 15 segments. 
2. Pentainetrocrinus japonicns (P. H. Carpenter). 
P. H. Carpenter. Journ. Linn. Soc. (Zoo!.), vol. 16, 1882, p. 499 {Etidiocrinus japonicits). 
"Challenger" Reports. The Comatulae, p. 84, pi. 7, figs, i, 2 {Eudiocrinus japonicns). 
Stat. iZ. 7°35'.4S., ii7°28'.6E. Flores Sea. 521 Metres, i Ex. 
Stat. 74. 5° 3.55., ii9°o'E. Makassar Straits. 450 Metres, i Ex. 
The specimen from Stat. 38 is typical, agreeing well with the type in London and with 
numerous specimens from southern Japan in the United States National Museum. Its cirri are 
35 mm. long, composed of 26 segments. 
The individual from Stat. 74 has the cirri 50 mm. long, composed of 35 segments; it 
is slightly larger than the preceding, nearly as large as the largest "Albatross" specimen from 
southern Japan. 
