The Crinoius rRo:\[ Dr. S. Bock's Expedition to Japax I!>1^. 77 



oljli(lue articiilatidiis. Tlic l>r-segiiu'iits ratluT siiidotli, 21 segments 

 per ein. (IS. if (he syzygial [laifs arc Cdtitiled as units). Tlie longer 

 side of the distal bi'achials, L = - 3 br, the shorier one L = ^ 2 hv. 



Pi 18; + 5 nnn.. P. 15 — 10; !> nun. |\eiy nuieh stiffer and twice 

 as coarse or nmre than the other |)~s. The distal ends of the pin- 

 inilars fi'dni the ('»"' segment thickened and with a spiny garland). P., 

 12: 4 mm.. P^ similai-. P., always present though often only 2 — 3 mm. 

 histal p. 17- l!S: 7..'. mm. (di.stal pinnulars L = 2 — 3 X br). 



Disk incised S — II nnn. in diameter. Colour white with small 

 br(twn spots. Anal cone shoi'l. jxiinted, 2.5 nnn. The distal half of 

 the p. quite violet-brown, the arms lighter with brdwii sp(ds. 



Differing from C. bella only by somewh<d more ciri'i. which usu- 

 ally have transverse crista instead of a j)air cd' tubercles, and by the 

 primipostaxillaries, which are enly united Itasally. 



Cyllometra A. II. Clakk. 

 C. disciformis (P. H. Cakp.). 

 Fig. 68—69. 

 Aiih'duN disriformis 1888 P. 11. Carpentek ('hall, Rrp. \'ol. 2*!, p. 1*28. 

 CijUometru (liscif'orniis 1912 A. II. Clauk Criii. Ind. Oc, p. Io8; UUo 

 Smiths. Misc. Coll. Vol. 61: [:>. p :U; 1915 Monograph; 1918 Siboga Exp. Vol., 

 42 B, p, 116. 



From St. 12 (1), 33? (I), 3o (1) =3 specimens. 



"^ Sp. I (St. 35) Cd discdidal. free dei-sal part 2 mm, C. X\ 2.") 

 — 27; 13 — 1") nnn. in an almost single whorl. 3' and 4''' segments 

 cubical, 5"' — 7"' one slightly longer than broad, then shorter again, the 

 distal ones L - "-js br. The 5*"(or 7*) to the 12"' segment with a small 

 dorsal transverse ]-ibb(ni with iui e.\cavation in the middle forming an 

 indistinct double tubercle, from about the 13"' segment a simple doi-sal 

 spine, h = ' 4 of the br of the cirral. (»p|iosing spine h = ' 2 of the 

 br of the segment. Tci-minal daw about as long as the preceding 

 segment. 



'i4ie distal borders of the k — s \ isible under the Cd. 1 Pr 1 

 h = ' br, latei'ally free. I iirax h = ' :; bi'. Piinnpostaxillaries united 



