138 
Comatella maculata (P. H. Carpenter). 
" Actinometra Kun 1877. Litken, Mus. Godeffr. Cat., Vol. 5, p. 100 
( dum). 1888. P. H. Carpenter, "Challenger” fans A 
Vol. 26. Biden. pp. 306, 307 (nomen nudum 
Actinometra maculata 1888. P. H. Carpenter; Challenger” Reports, 
Vol. 26, Zoology, p. 307, pl. LV, fig. 2. 
Bowen, Queensland. This specimen was examined by 
Dr. Carpenter during his visit to Copenhagen in the course 
of his studies on the ””Challenger” crinoids, but from his notes he 
could not be certain whether it should be referred to C. maculata 
or to CO. stelligera. A reexamijnation shows it to be a very typical 
example of the former. It may be briefly described as follows: 
Centro-dorsal small, discoidal; cirri XVIII, 16—17, in one 
and a partial second marginal row, small and weak, 10 mm. long; 
first joint short, second squarish, then increasing to the fourth 
which is half again as long as broad, and the fifth and sixth, which 
are the longest, twice as long as broad; seventh a transition joint 
as described in Thalassometra, half again as long as broad, dull 
like the preceding in its proximal, but polished like the succeeding 
in its distal portion; eighth and ninth squarish, the following de- 
creasing in length, in the terminal portion of the cirri being about 
twice as broad as long; transition and following joints with small 
distal dorsal ftubercles which gradually move nearer the center and 
become more prominent, in the last three being median in position; 
opposing spine central, represented by a small sharp tubercle; 
terminal claw longer than the penultimate joint, stout, and strongly 
curved. 
Nineteen arms 80 mm. long; the undivided arm. springing 
from the IBr axillary has the first syzygy between the third and 
fourth brachials; in all the other arms the first syzygy is between 
the first and second brachials; the two basal joints of the first 
four pinnules on either side of the arms are rather strongly carinate. 
Genus Comaster L. Agassiz. 
Comaster 1836. L. Agassiz, Mém. de Soc. de Sci. Nat. de Neuchatel, 
NOL X, p. 198: 
