The Crinoids from Dr. S. Bock's Expedition to Japan lit 1 4. I(i."» 



Sp. 5 (St. 56) Cil and C. tis in Sp. 4. R— s with a \oi-y lii,i;li 

 ami well inarlied tubercle. I Br 1 with a trace of a crista. Br — s 

 with a dorsal spine from about the 20^'' segment. Last 7 segments 

 with rudimentary pinnules. 



Sp. 6 (St. 56) 3^'— 5*'' eirral with a small dorsal spine; 6'"— 10"' 

 (or 15*'') segments smooth. 1\' — s with a very small tubercle. Dorsal 

 spine from the 40"' Br. 



Sp. 7 (St. 56) A ralher small specimen. The cirrus-segments 

 longer than in the preceding specimens. 2'' — 6"' eirral with both 

 a ventral and a doi-sal crista. 7"' — lO"'(oi- 12"'j segments smooth. — 

 K — s with a high prominence. I Br — s almost smooth. Example of 

 syzygies: 3 + 4, 14 + 15, 22 + 23, 31 4- 32 . . . Dorsal spine from the 

 35"' Br. 2 — 4 segment with rudimentary p— s. — Parasitic Siylma. 



Sp. 8 (St. 59) Cd pointedly conical, h = 3 mm. Cirri with a 

 dorsal spine fi'om 3'' — 7"'(or 15"') segments, after these usually some 

 smooth cirrals. !•"' — 25"' segments longer than broad. All the distal 

 segments with spines. Opposing spine usually not longer than the 

 preceding ones. — R — s h = V s br. " Arms laterally flattened out to Br 8. 

 Dorsal claw from the 60*'' Br. Colour red-brown. 



Sp. 9 (St. 5!)) More often than in Sp. 8 weak spines before the 

 opposing spine. K' — s: h = ' s br w ith a dorsal crista. Dorsal claw from 

 the 50"' or 60"' \h\ h = '/.^ of the br of the segment. The L of the 

 distal piiniulars = 2 V2 br. 



Sp. 10 (St. 5U) H of Cd 2,5 mm. No dorsal spine before the 

 20"'( — 25"') ciri-al. From about Br 65 a dorsal claw, h = '/o of the 

 segment. 



.S)). 11 (St. 59) R— s: br = 2 1 2 X L. Dorsal clj^w from about 

 Br 50, the li as in sp. 10. 



,S7). 12 (St. 59) Cd rather bluntly conical, li = 2 nun. R — s with 

 a very slight dorsal tubercle. The proximal Br — s a little knobby. 

 Dorsal spine from the 50*''(— 60"') Br. The L of distal pinnulars 2 V/2 

 — 3 X br. 



Differs by having a somewhat lower and more rounded i\\ and 

 a weaker radial tubercle. 



Sp. 13 (St. 59) H of Cd 3 nun. R— s : h = ' 4 br with a slight 

 dorsal tubercle. Arms broken. D' syzygy in one case between Br 1 

 and 2. Fewer pinnulars on P, (S) after II Brax. Disk 7 mm. 



Xnva Acta Rpg. Soc. Sc. Ups.. Ser. 'I, Vol. 5. N:o G. Impr. '^'a 192-2. It 



