The Crinoids from Dr. S. Bock's Expedition to Japan 1914. 129 



Sj). IS (St. 21) All the proximal pinnules present, though P.^ and 

 P3 especially are very small and incompletely calcified. Disk swollen. 

 No orals. 



The specimens from Shimonoseki (St. 1) obviously differ from 

 the other ones by having more cirri; they are also a little larger and 

 coarser than the rest of the specimens. 



It is interesting to observe the great variability in the number 

 of pinnulars and relative lengths of the proximal pinnules. 



Toxometra A. H. CLAieic. 

 T. aequipinna n. sp. 



Fig. 114—116, Photo 11. 

 From St. 4: 2 specimens. 



Sp. 1 (St. 4) Cd almost discoidal, free dorsal pole + 1 mm. — 

 C. XXVIII 10 — 11, 5 — 6,5 mm. in a double whorl. P' segment 

 L = V2 br, 2'^ one L about = br, 3'' and the following ones L = V/s — 

 1 '/2 X the median br. No dorsal spine. Antepenultimate segment L= 

 br. Opposing spine h = '/s of the br of the segment. Terminal claw 

 curved, a little longer than the penultimate segment. 



R — s narrow bands (the distal borders concave), almost con- 

 cealed by Cd. I Br — s 1 laterally free, h = "5 br, with a small late- 

 ral tubercle and a strong, median, longitudinal crista which continues 

 on the proximal ^/3 of the axillary. This ossicle is hexangular, h of 

 the middle line ''^/3 of the br. The distal margin concave. The proxi- 

 mal and distal edges strongly bent outwards. Arms X, 65 mm. Br — s 

 1 inside basally contiguous in pairs. Br 1 and -2 with a median tu- 

 bercle similar to the crista on the I Br series, but more slightly de- 

 veloped than this. After Br 9 oblique joints. All the distal edges of 

 the segments strongly bent outvards, a little proximally directed and 

 finely spinous. This condition most pronounced on the proximal seg- 

 ments. The distal Br — s long (L = l'/2 — 2 br) somewhat hour-glass- 

 shaped. Ex. of syzygies: 3 + 4, 9+ 10, 14 + 15, 19 + 20 etc. with an 

 interval of usually 3 oblique articulations. 



Nova Acta Rpg. Soc. Sc. Ups., Ser. 4. Vol. b. N:o fi. Impr. "/3 1922. 17 



