The Crinoids from Dr. S. Hock's Expeditiox to Japan Ml 14. 21 



e.vcept for the nunibor (if eiirals cliiefly iliffcrs by liaving tliiciker and 

 coarser arms, smootlier aiiii-bases, and by having the distal lir-seg- 

 ments less bent outward. 



It is to be supposed that the 3 species described above make 

 liybrids. A specicimen (Sp. I2| of ' '. bfachycirra approaches the 2 

 other ComaieUas by having somewhat spiny Br-segmciits. <"onipare 

 also Sp. 4. of C. stelUijera. 



Comissia A. H. Clark. 

 C. peregrina var. magnifica ii. \ar. 



Fig. 10. II. IMioto 2. 

 From St. .")!»: 2 specimens. 



Sp. 1. Cd pentagonal with somewhat ])rolonged coi'iici's. Dia- 

 meter 5,5 nnu. Free dorsal part 2.r) mm. Height I..-) mm. 



Cirri thrown off. pits of XXXV — X\j in 2 whoi-ls. 



R — s appearing as small flaps in the corners. I Hr 1 h = ' e br 

 latcrall\- united with each other, forms with I Bi-a\ a l(»w syiiarlhrial 

 tubercle as Br 1 with Br 2. Axillary h = '/a br, low pentagonal. Bi- 1 

 grown together inside. Br 2 on the outer side 3 X broader than on 

 the inner side. Br 3 — 4 narrow liands: 4*'' and 5"' segments form a 

 weak tubercle dii-ected inwards, 5*'' and ()"' give rise to a similar one 

 directed outwards; (}''' -7"' and S'"— 9"' form inward directed, 7"' — 8"' 

 and il"' — 10"' outward directed knobs, then rounded segments with 

 more or less oblicpie articulations. Syzygies 3 4.. 13 -}- 14 . . 17 H IS 

 etc. with an intcrxal of 3 to 4 oblique articulations. Distal Br-segments 

 triangular, the long side -/■; X l)i-. The arm-profile distally smooth, 

 proxinmlly somewhat sei'rate. Ai-ms X. loO- 170 mm. I(> segments 

 pr. cm. (if syzygial pairs are counted as units II oi" 12). Breadth of 

 the arms 2,5 — 1,3 mm. 



P, 50 — "),") (22 — 25 last segments rolled in a double spiral with 

 large rather pointed teeth, h = the br of the segment. 2'' — 7"' or S"' 

 segments with dorsal knobs, weakly projecting. The renu\ining seg- 

 ments smooth, though distally weakly collar-shaped, not at all or only 

 a little longer than broad) 17 nuu., P.^ 13 mm. P, and P^ still some- 



