The Crinoids from Dr. S. Bock's Expedition to Japan l!»14. 145 



2 br, 4"' — 6*'' L = 3 X br, rather much hour-ghiss-shapecJ, 7"' segment 

 L = 2 V'a br, antepenultimate one L veiy slightly greater than bi-. Ter- 

 minal claw curved, about as long as the preceding segment). The 

 distal cirrals smoother, in side view thickened. 



R — s concealed. I Br-s 1 latei-ally free, in the middle incised 

 by the backward projection from the axillary. Their lateral h = ^ji — '^js 

 of the br of the segments. Axillary h = br, with a tongue-like pro- 

 minence both proximally and distally: the proximal projection is longer 

 than the distal one. The side-angles of the axillary overlapping the 



1 Br-s 1. Arms X, 45 — 50 mm. Br-s 1 inwardly contiguous basally, 

 on the outside three times as wide. Br 2 with a stout synarthrial 

 tongue. The first syzygial pair (3 + 4) a little broader inside than 

 outside. The following segments irregularly squarish. The distal Br-s 

 knotty and swollen, somewhat longer than broad. Ex. of syzygies: 



3 + 4, 9 + 10, 14+15 etc. with an interval of 3 oblique articula- 

 tions. 



Pi 15; 7 mm (P* and 2^^ segments short, 3'^ L= 2— 2 1/2 br, 4"^ 

 and the following ones L = 3-4 br), Pg 8; 4 mm. (with a genital gland 

 from the 3'' or 4"' to the 7"' segment), P3 9; 4,5 mm. (a gonad from 

 the 3'' to the 7"' segment). The distal segments a little spiny distally. 

 Distal p-s. + 16; 6—7 mm. 



Disk 3,8 mm., smooth, without stouter granules. Anal cone 

 3,2 nun. 



Sp. 2 (St. 4) A very young specimen, probably belonging to 

 this species. 



C. + XXVl 7—10; 2—3 mm. in 2 whorls. Cd low, flattened, 

 almost hidden by cirri. (2'' cirral L = 1 ^/4 br, the following segments 

 L = 4xbr, distally somewhat expanded. Antepenultimate segment 

 L=13/4 br. Penultimate segment L =- br, with an indistinct opposing 

 spine). 



I Br 1 h = V3 br. Axillary h = ^/4 br, the backward directed 

 corner with a large synarthrial tongue, about twice as long as the 

 distal angle. Arms X, 10 mm. +. Br-s 1 almost free inside. Br 2 

 with a synarthrial tongue. — P^ + 10; 1,8 mm. (L of the segments = 



2 1/2 br). Between Pj and the distal pinnules a gap. Disk 1,3 mm. 

 Anal cone 1 mm., narrowly sausage-shaped. 



Nova Acta Reg. Soc. Sc. Ups., Ser. 4. Vol. 5. N:o 6. Iiiipr. »,4 1922. 19 



