48 



T. (jISLKX, 



ßß. S. (St. 15) Cd S nun., free dor.sal jiule •") mm. <'. XXXII 

 23—28, 18 — 25 mm. Dorsal spines a little stronger than in the pre- 

 ceding specimen. 



I Br 2 h = '/3 br, the distal angle somewhat prolonged, br =ti mm. 

 Arms XXXll 115 mm. The interspaces between II Br 3 : 2.5 mm. The 

 arm-branches somewhat more slender than in the preceding specimens. 



Pii + 45 (5 to 14 T„ the tip smooth) 26—33 mm. 1',,, or I'l 

 (+10 T) 23 mm. P, S— T. IS mm.: P,— P, wi(li a ymall. short comb 

 (3 — 5 T); P,; without a comb IS; 5,5 nuu. 



Disk 2S mm. Anal cone 4.5 mm. Colour a liltle more grey- 

 brown than in the foregoing specimens. 



One may possibly also assign a young Comastei'id (Sf. 18j to 

 this species. 



Sp. 4 ? (St. 18) C. XIII 10—12; 2,.-.- 3 mm. 3^'— 5"' segment 

 longest L = 1 1/2 X br. 



R_.s h = i/3Xbr. I Br 1 h = V2Xbr. latterally free. 1 Brax 

 h = 2 y ^ l3,.^ pentagonal, the distal margins straight. Br 1 inside 

 almost free. Arms X, 7 mm. P' syzygy between Br 3 and 4. The 

 segments distally collar-shaped, spiny, and overlapping. 



Pj with an indistinct comb, the tip is smooth, the pinnule rolled. 

 T 7 low, sparse, obtuse. P., — P4 to P5 are lacking. 



Disk 2,3 mm. Mouth and anus subcentral. Anal cone 1 mm. 

 Disk rather »lean», weakly papillated. 



A comparison with specimens in Dr Mortensen's collection from 

 Japan showed that it is only the very largest specimens of C. pinguis 

 that have the ossicles of the division-series so broad that they grow 

 together laterally. The division-series are, however, always (even 

 when not in lateral contact) strikingly broad and flat. G. japojiica, 

 according to the scheme in the Siboga volume, has narrow division- 

 series, leaving broad parts of the perisome unprotected. Nevertheless 

 A. H. Clark says about the original specimen (Leyden Mus. Vol. 33, 

 p. 181) that »the division-series are rather broad». The formation of 

 I Brax seems to be a charac-teristic of species more certain than this 

 one. While C. pingxds has an axillary that in old specimens gets 

 almost straight distal margins, these in C. japonica are very concave, 

 and therefore the distal angle of the axillary becomes very prolonged 

 (As also in C. solaster). 



