The CrinÔids from Dr. S. Bock's Expedition to Japan 10 14. 25 



0,6 mm. 10 segments pr cm. (12, if the syzygial paii's are counted as 

 units). The longer side of the distal Br-segments = I'/s X br. 



l\ 25-27 (9-11 T) 5 mm., P., 23 (11 T). Teeth somewhat 

 longer, narrower and more pointed than in C. parvida. P3 (16; 3 mm.) 

 and the following ones without a comb with swollen pinnule-bases. 

 Distal p. 13 — 15; 4 — 5 mm. The segments are long (L = 2 X br), 

 swollen into knots at the ends. Disk 3,5 mm. 



Sp. 2 Cd 1,8 mm. C. + XX 9; 4 mm. (only one cirrus remaining). 

 Antepenultimate segment L= l'/2 X br. 



R — s concealed. I Br 1 appearing at the margin of Cd. Axillary 

 h = V'3 — ' /4 X br, with strongly concave distal sides. Br 1 + or — 2. 

 Br 1 only united by skin on the inside. Arms rather smooth, broken, 

 X, probably about 15 mm. Syzygies with an inter\al of 3 oblique 

 articulations. 



?! and P2 with combs. P^ 2() (9 T) 4 mm. P., + 22 (7—8 T) 

 3 mm. Pg 10 — 12; 2,5 mm. Disk 2,5 mm. 



The specimens are habitually more slender and provided with 

 more spiny distal pimiules than in G. paroula. A comb only occurs 

 on Pj and P^. The genital glands are well developed in Sp. 1. Though 

 G. gracilipes is rather closely related to G. parvula, it can, however, 

 scarcely turn out to be a young form of this species. For, in the first 

 place, 8p. 1 of G. gracilipes described above is mature, secondly in 

 this specimen Cd still hides more of the I Br-series than in G. parvula 

 (If the first-mentioned species were a young form one might expect 

 the opposite conditions). In other respects the above-described speci- 

 mens of G. gracilipes agree with A. H. Clark's short diagnosis. 



Commissia ignota var minuta ii. var. 



Fig. 18—20. Photo 3. 

 From St. 42 (1 sp.), 45 (9), 45 A (1), 47 (5), 55 (II), 61 (2) 



= 29 specimens. 



Sp. 1 (St, 45) Cd 1,5 mm. Free dorsal pai't 1 mm. C. XV 10; 

 3,5 mm. 2'' segment hour-glass-shaped L = l'/2 X the distal br, 3" seg- 

 ment L = 3 X br, 4"^ L = 2 X bi-, 5"^ L = P^/4 X br, 6"^ and 7* segment 



Nova Acta Reg. Soc. So. Viis., Ser. 1, Vol. .">, N:o 0. Imijr. "'/a 1922. 4 



