43 
especially on the outer side of each III Br series, which are 4 (3 + 4) 
(Philippine Islands) polycncmis 
c' IVBr series 4 (3 + 4) 
d' VBr series 2; VIBr series, when present, 4(3 + 4) (northern 
A u s t r a 1 i a t o t h e P h i 1 i p p i n e I s 1 a n d s) alternans 
d'- VBr and following series 4 (3 4- 4) 
e^ division series narrow and more or less separated (wester n 
and northern Australia to t Ii e Moluccas and 
the Ph il i p pi ne I sla n ds) briar etis'^') 
e'- division series closely united laterally, and the interradial 
perisome plated (P h il i p jii n e Isl a n ds) mai^nifica 
b- 40 arms (Aru Islands) rotula 
a" Centrodorsal large, bearing numerous long cirri 
b' cirri slender, in length between one eighth and one fifth of the arm 
length; the longest proximal segments are from on'e third to one half 
again as long as broad ; 40 arms 
c^ cirri composed of 19 — 20 segments of which the longest are about 
half again as long as broad (Less er S un da I sla nds) . . . weberi 
c" cirri more slender, with 20 — 28 (usually 24 — 26) segments of which 
the longest are about one third aga'n as long as broad (southern 
Japan) , intermedia 
\y cirri large and robust, their length equal to about one third of the arm 
length; the longest proximal cirrus segments are about as long as broad; 
31 — 48 arms 
c^ division series broad, nearly or ([uite in lateral apposition, the 
component ossicles with smooth distal edges; brachials with the 
distal edges not noticeably produced; 47 — 48 arms (coast of China) grafidicalyx 
c- division series narrow, strongly convex dorsally, the component 
ossicles with everted and spinous distal edges; brachials with strongly 
produced and spinous overlapping distal edges; cirrals with more 
or less overlapping distal ends; 31 — 48 arms (southern Japan 
fro m the Korea n St r a it s to Saga mi Bay) imbricata 
I. Cotnatitheria polycnemis (A. H. Clark). 
A. H. Clark. Proc. U. S. National Museum, vol. 16, 1909, p. 396 {Comanthns polycnemis). 
Crinoids of the Indian Ocean, 1912, p. 89. 
- Stat. 99. 6°7'.5 N., 120° 26' E. 16—23 Metres, i ICx. 
This individual has 85 arms 130 mm. long. 
l) Synonyms: Actinomctra d'waricala P. II. Carpenter: Comanllitis callipeplitm II. L. Clark. 
