The Crinoids from Dr. S. Bock's Expedition to Japan 1914. 127 



posing spine. Terminal claw narrow, curved, somewhat longer than 

 the preceding segment. 



R — s concealed. I Br 1 h = 7'J br, laterally almost free. The 

 axillary h= '/s — ' 2 br, triangular. Arms X, + 25 mm. Br-s 1 united 

 inside in pairs, like the following ossicle on the outer side twice as 

 broad. Br-s 2 on the inner side separated by a rather wide inter- 

 space. The first 8 Br-s discoidal, then oblique joints. Ex. of syzygies: 

 3 + 4, 9 + 10, 13 + 14, 17 + 18 . . etc. Arms rather smooth. 



Pj 15; +5 mm. P* and 2'' segment short, the other segments 

 L = 2-— 2'/2br, the distal parts widened, spiny. Pg 9; 2,3 mm. The 

 proximal eirrals with strongly spiny borders. P3 (11; 3,r) mm.) — P5 with 

 a similar dorsal carination on the first segments. From P3 there is 

 a large genital gland. Genital p. 13 — 15; 4 mm. The dorsal carina- 

 tion of the proximal pinnules continues at least out to P^,, then more 

 indistinct. 



Disk 3 mm., white-coloured, without granules, a little swollen. 

 The arms darker. Each cirral with a dark spot proximally. 



Sp. 3 (St. 25) The eirrals somewhat more hour-glass- shaped. 

 Syzygies with an interval of 3 — 4 oblique articulations. P3 and the 

 following ones with a gonad. Pj — Pg with strong spiny whorls on the 

 distal parts of the 2'' — 5*'' segments. For further details see the 

 table. 



Sp. 3 (St. 25) 1 Br 1 ii = '/0 br. Syzygies, as in Sp. 2. P3 and 

 the following pinnules with a genital gland. Colour: somewhat more 

 red-brown than in the preceding specimens. 



Sjh 4 (St. 1) The syzygies, as in sp. 5 — 8, with an interval of 

 3 oblique articulations. Cirri more than in the preceding specimens, in 

 a double whorl. Pj and the following ones with very large spiny 

 prominences. Pa 9; 3 mm. Disk 5 mm. Colour reddish. 



»Sp. 5 (St. 1) Cirri arranged in about 3 whorls. P^^ as in sp. 4. 



Sp. 6 (St. 1) Pa 8; 2,5, mm. Disk 4,.5 mm. 



Sp. 7 (St. 1) Cirri in a double, incomplete whorl. P^ 7; 2 mm. 



Sp. 8 (St. 2) Ciri-i in a partly double whorl. P^ 11; 3 mm. with 

 a genital gland. P^ small. Anal cone large. Disk 5 mm. lighter than 

 the red-grey arms, which dorsally have greyish segments and light 

 articulations. 



Sp. 9 (St. 2) P3 with a gonad. Disk 4,.5 mm. 



