The Ckinoids from L)k, S. Bock's Expedition to Japan 1!»I4. (il 



Differs by the fürmati(Mi of tlie disk from tiiL' abuxc-cluscribeci 

 Comatellas. 



Sp. -J (St. 54) Cd U.8 iiim. (', Xlll !)- 10; 2,.,— ;{ nini. :]' seg- 

 ment L = 2 ' 4 bi'. 



K — s h ^ V/* 1^'", partly concealed by tlie angular Cd. I l^i- I 

 h =- 1 2 br. Axillary li — ^ 3 br. Distal margins somewiiat concave. 

 Arms X. 15 mm. Br 1 h -= \'2 br, contiguous in paii's inside, not broadei- 

 on ilie outside. Br 2 h =—'/2 br, a little broader on the outside;. Syzy- 

 gies usually 1—2, 8 + 4; Distally with an interval of 8 oblique arti- 

 culations. Br-segments long, serrate and bent oulwariis. — P, with 

 8 heart-shaped T. P., and P.^ wanting. Distal p. 8 nun. — Disk 2,2 

 mm. Anal funnel 1 mm. 1 K calcareous plates. 



Sj). 3 (St. 47) C. XI S-!»; 2,5— 8 mm. — R— s h- '/4 bi-. I Br 1 

 h = 1/2 br. Axillary h = ^/3 br. Arms XI. II Br— s 4 (1 case). The 

 segments very serrate. 



Pj with 4 — 5 T. P., missing — Disk coarsely granulated with 

 calcareous gi'ains and plates. Small oral plates. Probably a Co- 

 inaster. 



Sp. 4 (St. 47) C. Xlll 10—11; 2-2,5 mm. — R— s h^ V'2 br. 1 

 Br 1 h =^/3 br. The arm-bases serrate. Arms X, + 10 nun — Pj with 

 some few T (probably 5 to 6) rolled to a close globe. P., — P^ want- 

 ing. — Mouth central. Disk 1,3 nun. Orals! 



From St. 45 there are, besides, 9 small young Comasterids. 

 Some of these specimens apparently belong to the sub-family Gomaste- 

 rinœ {Gomaster and Gomanlheria), but some of the others are practically 

 impossible to determine either with regard to subfamily or to genus. 



Sj). 5 (St. 45) C. Xl\'. !», strongly bent. Arms XII, 15 mm. 11 

 Br-s 4. Ill Br-s 2. Pj and P.^ and perhaps Pg with a short comb. 

 Mouth central. Anal cone smooth (a Gomaniheria or Comaster). 



Sp. 6 (St. 45) C. XII 8— 9; + 2 mm. 4'" segment the longest 

 L = 3 X br. 5*'' and 6*'' segment L = 2 X br. Antepenultimate one L = 

 1 '.2 — 2 X br. - R— s band-shaped, h = '/4 bi'. 1 Br 1 h = '3 br, laterally 

 free. II Br-s : 4. Arms XII, 14 mm. — P^ with (J high T, 3 mm. P2 

 and P.J usually absent. P., with 4 T. No distal combs on the distal 

 pinnules. — Mouth and anus subcentral. Disk 2 mm. Anal funnel 

 papillated. — (Pi'obably as sp. 7 a Gonuif^tci'). 



