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Comaster typica (Lovén). 
Antedon stellatus Litken, M. S. 
Phanogenia typica 1866. Lovén, Ofv. k. Vetensk. Akad. Førhandl., 
1866, No. 9, p. 231, fig. p. 230, a-h. 
Comaster typica 1908. A.H.Clark, Proc. U.S. Nat. Mus., Vol. 33, p. 686. 
Fiji. One small specimen, labelled stellatus, with nearly 
eighty arms 80 mm. long; it is undoubtedly, as stated by Car- 
penter, the same as Lovén's species. There are six or seven 
post-radial axillaries; eight of the ten IIBr series are 2, the 
remaining two 4 (3 — 4); the distal- division series which are 
developed out of the regular order as described below (three in 
number) are 4 (3 —- 4), the remainder being 2 (1—- 2); the first 
syzygy of the free arms is between the first two brachials. 
The general scheme of arm division in this species agrees 
with that of C. novæguineæ, e gracilis, and C. multibrachiata, 
but differs from that found in all other comatulids. Starting from 
each IIBr axillary, two large trunks are given off, which in turn 
give off arms alternately on either side, eventually ending in a 
pair of arms. The first arm is given off externally in reference 
to the IIBr axillary. The arrangement of the lateral arms spring- 
ing from the main trunk is the same as that of the pinnules given 
off from a single undivided arm, the only difference being their 
Occurrence on every second joint instead of on alternate joints; but, 
as the joints are syzygially connected, this difference is not im- 
portant. While the general appearance is that of two main trunks 
Springing from each IIBr axillary, the structure is of the regular 
dichotomous type; the IIIBr series following the I Br series gives 
off externally an undivided arm, internally a IV Br series, which, 
in turn, gives off internally in relation to the IIBr series, exter- 
nally when compared to the preceding IIIBr series an undivided 
arm, and on the other side a V Br series, ete. i 
Comaster gracilis (Hartlaub). 
Actinometra gracilis 1890. Hartlaub, Nachr.. Ges. Gåttingen, Mai, 
87 
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Comaster gracilis 1908. A. H. Clark, Proc] U.S. Nat. Mus., Vol. 83, p. 686. 
