The Ceinoids from Dr. S. Bock's Expedition to Japan 1914, 85 



tinetly limited tubercle, not at all or only slightly prominent in lateral 

 view. Br I and 2 with a similar though still smaller prominence. 

 Br — s inwardly united basally: Ex. of syzygies: 3 + 4,9 + 10, 14 + 15 

 etc. with an interval of 3 (exceptionally only 2) oblique articulations. 

 Arms X, 40 — 45 mm. First 10 Br— s discoidal, not »wall-sided», then 

 oblique joints. Arms smooth. 



Pj 13 — 15; 3 — 5 nun. (The pinnulars smooth, cubical to L = 

 I ^ 2 X br). P., 16; 5 — ().5 mm., longer and stouter than the preceding- 

 pinnule, the middle segments often with small, distal tubercles, Pj 12; 

 3 — 4 mm. as the following ones smooth; P^ 13; of the same length or 

 shorter. P5 and the following pinnules again longer. P^ absent, P,, 14; 

 4.5 mm. Distal p-s + 20: mm. (1''* and 2'' segments short, 3'' cubi- 

 cal, the following pinnulars long and slender, L about = 2 br). 



Disk incised, smooth, without calcareous granules, 3 mm. — 

 Colour light-brown (in the preserved animal). 



Sp. 2 (St, 13) Cd knob-formed, free dorsal surface 1,3 mm. Ter- 

 minal claw about as long as the penultimate segment. — Axillary a 

 low hexagon, h = ^'3 br, II Br — s : 2, Syzygies with an interval of 

 2 — 3 oblique articulations. Br 1 — S discoidal, — Distal p — s with a 

 notch between the 2'' and 3'' segment (a similar condition though not 

 so decided in Sp, 1 too) by which the 2*' segment seems to form a 

 small prominence. For fui'ther details as in the following specimens 

 of, the table. 



Sp. 3 (St. 13) The distal pinnules as above, Sp. 4 and Sp. 5 

 (St. 13) -. 



Sp. (St. 13) All the cirri with the exception of a young one, 

 broken. Some arms with widely separated syzygies. Example: 



I Br 1—2 3+4 l(i+ 17... 2(1 -r 21 ... 27 +2S ,.. 33 + 34 ., . 



T 1—2 (Br 1—2 3 + 4 23 - 24 , . . 28 + 29 , . . 34 + 35 . , , 



III 1—2 



I Br 1—2 3 + 4.. IS + 19.... 26 + 27,. 33 + 34,, 40 + 41 , 



or I 1— 2 i 



Br 1-2 3 + 4 . . , 9 + 10 , . . 14 + 15 , , . 23 + 24 . , , 

 Br 1 — 2 3 + 4 15 + 16 . . . 22 + 23 . . . 



All the other specimens with noi'inal distribution of syzygies. 

 Colour of the specimen : whitish with red spots. 



