The Crinoids feom Dr. S. Bock's Expedition to Japan 1914. S3 



I 1—2 



U 1—2 



II 1 



III 1-2 



(B 1—2 3 + 4 5 6 7 



iBr 1—2 3 + 4 5 6 7... 

 Br 1—2 3 + 4 5 6 7 

 Br 1—2 3+4 5 6 7 . . . 



f Br 1—2 3 + 4 5 6 7.. 



Ill 1—2 



Br 1-23+4567.. 



Sp. 2 (St. 59) Free dorsal pole of Cd 2 mm. C. XXV 25—31; 

 15 — 20 mm. Usually a single dorsal spine from the 16"' segment. The 

 middle prominence larger on the proximal segments. 



R — s projecting in the corners. 1 Br 1 h = ^ji br. The division- 

 series of rather uniform thickness. Arms XVI (possibly two more), bro- 

 ken. II and 111 Br— s : 2. 



Pj 14 — 16; 5,5 — 6 mm. (missing in cases comparable with those 

 in the above-quoted scheme). All the ossicles after Br 3 broken. 

 Disk thrown off. Colour: light brown. 



.S)). 3 (St. 53) A young specimen, like the following one. C. 

 XIV 9; 2 nun. No doi-sal spine, the ends of the cirrals somewhat swol- 

 len. Opposing spine h = 1/2 of the br of the segment. Terminal claw 

 a little longer than the preceding segment. ' Cirral 3 and 4 L = 2 br. 



R— s h — '/2 br. 1 Br 1 h br. Axillary h = 1^2 br, forming a 

 slight synarthrial tubercle with the preceding ossicle. Arms X, 13 mm. 



Pj 10 +; 1,5 mm. P2— P,-, ^^'allting. Disk not incised, 1,3 mm. 



Sj). 4 (St. 53) C. X\'l 9—11. in a single or partly double whorl. 



Arms XIll. 1.") mm. 



lir - s : j: 



2. Svzvaies with an interval 



of 4 — 5 oblique articulations. The segment very much hour-glass- 

 shaped. 



P, 14: 3..-. mm.. P., 13: 2.5 mm. Disk incised, dark-red. 



The young of this genus seem to have longer proximal brachials 

 (I Br 1 and 2 especially longer) than other young forms 1 have exa- 

 mined. 



The cirri in sp. 1 somewhat resemble C. manca and so there 

 might be some doubt whether the two species are distinguishable (Sp. 

 1 corresponds in all the other characteristics with sp. 2, which is a 

 youngei' individual of the same type, but \\ith pronounced alhopur- 



