The Crinoids from Dr. S. Bock's Expedition to Japan 1914. 59 



Sp. 2 (St. il) C. XIII 9; 2,5-3 mm. 3'' and i''' segments L = 

 21 2 X br. 



Arms X, 15 — 20 mm. The arm-bases rather serrate. Between 

 Br I and 2 a close synarthry. Syzygies with an intei'val of 3 oblique 

 articidalions. Pj (and Pg when present) with a short, high coml) of 

 4 — 5 T. Pj lacking. No distal pinnules with combs 



Mouth central. Disk 1,2 mm. Anal funnel short, wart-shaped; 

 the anal mterradius with calcareous plates in the skin, but no papillae. 



Sj-,. 3 (St. 44) C. XIII 9—10: 3-4 mm. 3'"— 5* segments L = 

 2 X br. — K-s h = i 7 br. I Br 1 h = i/3 br, laterally free, articula- 

 ting closely with the axillary, which is pentagonal h= ^/a br. Br 1 basally 

 united inside. Syzygies as in Sp. 2 (St. 47) Arms X, 22 mm. Br- 

 segments rather long, distally somewhat bent outwards and spiny. 

 Proximal parts of the arms well separated. Disk reaching to Br 2. 

 P, 21 (5 large T) 2.:, mm. The height of the teeth = i 3 X the br of 

 pinnular. Pg. P3 and sometimes P^ absent. Pinnulars very spiny. 

 Distal p. 14; 3 mm. (The 3'' and following segments L = 4 X br). No 

 combs on the distal p. 



Disk 3 mm. Anal cone subcentral, swollen, papillated. 



Young forms of Comantberia Idoiiblfiil whothiM- sj). 2 Ijelongs to \h\^ gviiiis). 



Sp. 1. (St. 45) C. XIV 11 — 17: 3—6.5 mm. 4'*^ segment the lon- 

 gest. L= 1 V3 — 1 V2 X br. From the 7^'' segment a dorsal prominence 

 fixed a little before the distal mai-gin. Opposing spine h = V3 of the 

 bi- of the segment, coarser and more pointed than the preceding ones. 

 Cirri from the dorsal whorl considerably more tender. 



R — s h = V/7 br. I Br 1 h = 1/3 br, laterally free, a weak synar- 

 thi-ial tubercle with the axillary, which has the h = V,2 br, with some- 

 what concave distal margins. Syzygies 3 + 4, 11 + 12, 16 + 17 etc. 

 with an interval of 4 oblique articulations. Br:s 1 united inside to ^/3. 

 Arms X. broken, 15 mm. +. The arm-bases tolerably smooth, after Br 

 7 with the distal margins a little bent outwards and spiny. Breadth 

 of the arms proximally 0,6 — O.s mm. 



Pi 27 (9 — 11 rather low, triangular T, h = ^/4 of the segment) 

 5,5 mm. Po 6 T: 3 mm., P.^ ludimentary, P^ without a comb 11; 1,5 mm. 



