iSg 
The ten arms are about 210 mm. Inv^-. the diameter of the animal at the level of the 
seventh brachial is 22 mm., as against 19 mm. in C. robusta. 
A specimen of this species in the collection of the United States National Museum was 
dredged at " Albatro.ss" Stat. 5656, Ciulf of Boni, in 871 Metres (Cat. N" 35702). 
2. C/ioitdroiucfra rodiisfcx (A. II. Clark). 
A. H. Cl,.JiKK. I'roc. U.S. National Museum, vol. 39, 191 1, p. 558 (Chloroimlra robusta). 
Stat. 297. io°39S., i23°4o'K. Timor Sea. 520 Metres. 6 Ex. 
One of the specimens, with arms about 170 mm. long, very closely resembles the type; 
it is very slightly smaller and more slender, and the median ornamentation of the arms is 
slightly less pronounced, though of exactly the same character. 
Another is .somewhat smaller than the preceding, with the dorsal ornamentation somewhat 
less marked; the cirrus sockets are arranged in a single regular column in the centre of each 
radial area, three, in one case four, to a column ; the surface of the ^^ ^^ 
centrodorsal between the columns of cirrus sockets is bare and Hat. /^ J^kS^^^'^ ^V 
A very small specimen has the arms 75 mm. long; the centro- (v\ /^ v Li^^i^f^ 
dorsal, which exactly resembles that in the preceding except that the Vv) v' 
interradial areas are slightly convex, appears unnaturally large; the vD^l^^lvv 
radials are as large as the IBr^; deep subradial clefts are present; the \ lE^^y 
longest cirrus is 18 mm. long, composed of 17 segments the short apical vj/ 
cirri are 7 mm. long with 1 1 segments, of which the third corresponds ^'^' ^" 
' . . . , , . , Lateral view of the centro- 
to the fourth m the larger cirri ; the longer segments are proportionately dorsal of a specimen of c/wn- 
slightly longer than in the larger cirri, and there are only four short "'"""'"■" '•'"^'"''"- (Courtesy of 
'=' -^ ^ & 1 } the L". .S. National Museum). 
distal segments instead of eight or nine ; the division series and arm 
bases are obscurely rounded carinate, resembling those of C. aculeata as figured by Carpenter 
("Challenger" Reports, Comatulae, pi. 23, fig. 3). 
Another very small specimen has the arms 55 mm. long, and the longest cirri 12 mm. 
long, composed of 1 3 segments. 
All of the -specimens from this station have the median brachial ornamentation very 
slightly less accentuated than in the type. As in the type the centrodorsal is sharply conical, 
and the cirrus sockets are arranged in two closely crowded converging rows which are confined 
to the midradial region (Fig. 9). 
Calyptometra A. H. Clark. 
The only species in the genus Calyptometra is 
I. Calyptometra lateralis (A. H. Clark). 
A. H. Cl.\RK. Proc. U.S. National Museum, vol. 34, 1908, p. 226 {Charitometra lateralis). 
