The Crinoids from Dr. S. Bock's Expedition to Japan 1014. 139 



also very much more narrow on the inside; slight synai'thrial tubercle 

 between Br 1 and 2. The distance from the R — s to the first syzygy 

 is 3,2 nun. After Br 12 oblique joints. Kx. of syzygies: 3 -1- 4, 9 + 10, 

 14 -I- 15, 21 + 22 or 3 + 4, 9 + UK 16 + 17, 20 + 21 etc. with an interval 

 of 3 oblique articulations. The first 10 Br — s with the distal margins 

 somewhat thickened and bent outwards; distally the arms are smooth. 



Pj + 30; 6 mm. The 5 first segments with notches (as in for in- 

 stance Ps. mira), shorter than long to cubical; then the segments are 

 slender, more or less hour-glass-shaped, L= 1^2—2 br, the whole pin- 

 nule very slender and whip-sliaped, P., similar, 4i 25; Pj 11 — 12; 3,5 — 4 

 mm. (First 3 segments shorter than long, the following ones L= 2 — 

 2 '2 br. From the 5*— the 8"' segment a large genital gland; Pg stouter 

 than Pj). P,, similar, 11 segments. P3 11; 3,7 mm. Distal p. 10; 5,5 mm. 

 (l"*' and 2 segments short, 3'' and the following ones long and slender, 

 L=2 '/2 — 3 br, the articulations somewhat swollen). 



Disk a little incised, 4,5 mm., without granules. Anal tube 

 2,3 mm. The ossicles white, the weak parts yellowish (on the pre- 

 served specimen). 



The above-described new species is a rather interesting type. 

 By the formation of Cd it documents its relationship to the subfam. 

 Zenoine.trhue. The formation of cirri and Pj both hint at the above- 

 mentioned subfamily as well as the subfam. Tlnjsanometrince (Both tliese 

 characteristics are however common both to Thysanometrince and to a 

 couple of genera in Zenometrmcv). And finally — and this is the really 

 strange condition ■ — the animal has a large genital gland on Pg, 

 a phenomenon elsewhere found in Ps. anornala, in Bathymetrina', and 

 exceptionally in Ântedoninœ (Compare Gompsometra parviflora). Of late 

 A. H. Clark has shown that a genital gland on Pg does not occur 

 in all species of Bathymetrinœ (as he at first supposed), though it is a 

 very usual characteristic in the subfamily mentioned. 



It is perhaps not an accident that this characteristic, otherwise 

 conmion to the Bathymetrhue, is found in Zenomeirin foi'ms. This is 

 an additional support for A. H. Clark's supposition (though possibly 

 not a very important one, considering that a genital gland is also found 

 exceptionally in the Antedoninœ) that the two first-mentioned subfamilies 

 might be more closely related. To be correctly understood, I will say, 

 however, that, contrary to A. H. Clark, I am more inclined to think 



