136 
Genus Comatella A. H. Clark. 
Comatella 1908. A. H. Clark, Smiths. Misc. Coll. (Quart. Issue), Vol. 52, 
p. 207. 
Comatella stelligera (P. H. Carpenter). 
Antedon (Actinometra) tenax Litken, M.S. 
Actinometra stelligera 1880. P.H. Carpenter, Journ. Linn. Soc. (Z0ol.), 
Vol. 15, p. 198, pl. XII, fig. 26. 
Actinometra notata 1889, P, H. Carpenter, Journ. Linn. Soc. (2Z0ol.), 
Vol. 21, p. 312, pl. XXVI. 
Antedon bassett-smithi 1894. Bell, Proc. Zool. London, 1894, p. 399, 
pl. XXIV. 
Samoa. One specimen with twenty-seven arms 100 mm. long, 
cirri XXVIL, 20—22, 15 mm. to 20 mm. long. The transition joint 
in the cirri is about the tenth. The joints in the distal half of 
the arm are exceedingly short, almost discoidal, suggesting the 
condition found in ,,Comatula fimbriata" ; the joints in the proximal 
half. are triangular, about twice as broad as long. Eggs are devel- 
oped on the pinnules. 
Tonga Islands. Two specimens; one has thirty arms 90 mm. 
long, cirri XXX, 20—26 (usually 23—25), 15 mm. to 25 mm. long, 
the transition joint being about number thirteen; the second speci- 
men (dry) has thirty-one arms, all broken off near the base; the 
cirri are XXXVII, 18—21 (usually 20). 
The centro-dorsal of this species is discoidal with a broad flat 
polar area 5 mm. in diameter, bearing cirri in three closely crowded 
alternating rows. 
The cirri åre usually about 20 mm. long; the first joint is 
very short, the following gradually increasing in length to the 
fourth, which is a little longer than broad; the fifth-seventh or 
sixth-eighth are the longest, about half again as long as broad; one 
joint between the eighth and thirteenth (usually about the tenth) is 
a transition joint, such as I have described in certain species of 
the Thalassometrinæ but which has not heretofore been found in 
any of the Comastéridæ; its proximal half is dull like the preceding, 
lts distal half highly polished like the succeeding; it is approzi- 
mately squarish in shape; the following joints decrease gradually 
EEN USER EET EET EU TE EET PS ES AE FE INS 
