The Crinoids fiiom Dr. S. Bock's Expedition to Japan 1Q14. 43 



Com an thus A. H. Clark. 



C. solaster A. H. Clark. 

 Fig. 33, 34. 



Syn.: Comatula soluster 1908 A. H. Clakk Proc. U. S. Nat. Mus. \"ol. 33, 

 p. 153. 



Coiiiaii finis solnsier 1909 A. H. Claiîk Videnskabl. Meddelelser Kobfiiliavii, 

 p. 147; 1912 Criii. Iiid. Oc, p. 94; 1915 Journal Acad. Sei. Vol. 5, p. 214; 1918 

 Siboga Exp. Vol. 42 B, p. 49. 



From St. 20 (1 sp,), 28 (1) 38 (2) = 4 specimens. 



Sji. 1 (St. 38) ('d II mm , free dorsal pole a little concave 7,5 mm. 

 C+LXX 18 — 23; 12 — 21 mm. in 2 or 3 whorls. Cirri very diversiform 

 in appearance, often slcndei-;, straight, weak; sometimes of the usnal 

 type; coarse, thick and strongly curved (compare Fig. 34). The first- 

 mentioned ones have the P' segment short, 2'' — 3'^ or 4"' cubical or a 

 little longer. 5'" — 8"' segment' L = + 2 X br (when the C are of the 

 later type these segments have only L=iV4Xbr). From about the 

 10"' segment L = \:2Xbr. Dorsal transverse ribbon or knot occurs 

 from 12"' or 16"' segments. Terminal claw rather coarse, somewhat 

 longer than the penultimate segment. 



I Br 1 hidden by Cd. I Brax triangular h = ^2 X br, distal angle 

 very acute, separating II Br — s 1, which are only narrow tips inside. 

 The oilier primipostaxillaries united inside, II Br — s : 4, III Br — s : 4, 

 IV Br — s : 4. Arms L 110 — 130 mm. Division series smooth, very 

 close. From the dorsal side only the bases of the distichal pinnules 

 visible (the first 6 segments). Disk concealed in dorsal view. Syzygies : 

 3 +4 . . 17 + 18 . . 23 + 24 or 3 + 4 . . 14 + 15 . . 18 + 19 etc. with an in- 

 terval of 4 oblique articulations. Br 4 — + ^^' ''O "^^'i^^ distally over- 

 lapping, thickened segments with small spines, then smooth arms. 

 20 — 21 segments pr cm. (15 — 16 if the syzygial pairs are counted as 

 units). II Br — s : br = 4 mm. Br 1 br = 2,3 mm.; 50 mm. from the 

 arm-base the br is = 1,3 mm. 



Pn + 60; about 25 mm. with 8 — 16 weak teeth, 2 to 5 last pin- 

 nulars smooth, the basal segments angular, a little knotty. Pm similar 

 somewhat shorter. Piy or P^ about 20 mm. (11 T). P2 with 8 rudi- 



