The Crinoids from Dr. S. Bock's f]xPEDrrioN to Japan 1914. 7:} 



R— s nan-ow, smooth bands, li = '/•' br. I Br 1+2 li = i)r, as 

 Br I and 2 with ventro-lateral, rather pronounced ledges. Br I br = 

 1,4 nini. Syzygies: 3 + 4, 8 + 1), 12 + 13 etc. with an inter\al of 3 

 oblique articulations. Arms V, 40 — 45 mm. smooth. 



Pj 9; 3,5 mm. (1 — 3 or 5 segments with a distally dii'ected crista. 

 P' segment much decreasing proximally, 2'' segment bi-oadest. The h 

 of the crista = ',3 of the br of the segment, compare the figure), P^ 

 10: 4 mm., similai' to the preceding, P.j 11; 5 mm. (3'' segment L = I72 

 br, distal segments with a somewhat spiny border, L = 2 — 2 '/2 br), 

 P2 11; 5 mm., P,, 12; 5 mm., P3 11; 5 mm. (with a small spiny gar- 

 land on the distal segments). Distal ]>. lb — 17; 4,5 mm. (the segments' 

 L = 3 bi-, the 3 last ones with dorsal hooks; 4 pairs of large sacculi 

 per segment). 



Coloui': Cii-ri white. Arms dorsally brown with white trans- 

 verse spots. The pinnulars whitish, the sacculi dark-coloured (in 

 alcohol). 



At first I had some doubt whether this specimen was not only 

 a full-grown specimen of those desei'ibed as Eu. gracilis pulchellus. 

 Ne^•ertheless some differences are of such a nature that I have been 

 obliged to believe that the specimen differs not only by characteristics 

 of age. The most impoi'tant differences are as follows: 



1) The cirrals are short, not very much longer than broad, not 

 at all or only slightly hour-glass-shaped (Cf. Eu. pinnatus and varie- 

 gains). 2) Pj and Pj are on the proximal segments provided with pro- 

 minences that are lacking in Eu. gracilis imlcliellns. By these promi- 

 nences it approaches Eu. venustnlus. 3) Further En. Loveni differs 

 from En. gracilis pulchellus by the arms which, though of about the 

 same length as in the last-mentioned species, are much coarser, 4) by 

 the more spiny boi-ders of the distal segments of P, and Pg, 5) by the 

 relatively short distal pinnules. 



The newly proposed species, which 1 have called after the late 

 Prof. S. LovÉN, is thus a pecidiar type connected with many species 

 within the genus Etidiocrinus. 



Nova Acta Reg. Soc. Se. Ups., Ser. 4, Vol. 5. N:o G. luipr. Vs 19'2'2. 10 



