10 TORSTEN GISLÉN, CRINOIDS. 



Actinometra variabilis (part) 1884 Beli »Alert», p. 169. 



Actinonic/ia typica 1888 P. Ii. Cabpekteb op. cit. 8, p. 296. 



Comaster typica 1908 A. II. Clark op. cit. 3, p. o'86; 1909 op. cit. IG: p. 365; op. cit. 25, p. 139- 

 1!)11 op. 32, p. 747; 1912 öp. 34, p. 83; op. 38. p. (i; 1913 op. cit. 40. p. 390; op. 11. p. 12: 1915 <>p. 42 

 and op. 43, p. 222. 



Localities: Station 5: a rather small specimen; Station 13: a fairly large, 

 niatnre specimen. 



Specimen 1 (St. 5) Cd the same as in the following one, but smaller not 

 covering the R:s. C VII 0,5 — 1,5 mm, indistinctly segmented, of a very juvenile 

 appearance, not reaching beyond I Br 1. 



The III Br:s are 2 (in 8 cases) or 4 (in 1 case). The divisions of the 

 arms are 1221 or 22 or 2221. No genital swollen pinnules. The arms 28; from 45 

 to 70 mm. Anus subcentral, not inflated. Colour in spirit yellow-red. The spe- 

 cimen is a small one. 



Specimen 2 (St. 13) Cd pentagonal, the angles interradial. Breadth across 

 4 mm. The borders irregularly small lobate; in the depressions between the lobates 

 the C:i are fixed. The centre a little hollowed. Cd is a little lowered in the surround- 

 ing ring of R:s and I Br:s. 



C IX in a single, incomplete row, 0,5—2.5 mm. The number of the segments 

 is about 10. C:i indistinctly segmented and of very juvenile appearance, without any 

 trace of terminal claw or dorsal spines. The fix ing points, as mentioned before, 

 lowered and grown round in Cd. 



The R:s almost or quite invisible. I Br 1 form a frustum of a triangle, its 

 base face turned outwards. Breadth proximally about 2, distally 3 times the length. 

 I Br:s 1 are grown together laterally into a circle and united with I Br:s 2 by a 

 syzygy. The latter ossicle forms a right-angled triangle with the base towards I Br 1. 

 The space between the basal parts of the primary arms not U-shaped owing to the 

 fact the IIBr.-s have almost straight and parallel outsides. 



The II Br:s are 4 (1 — 2 3 + 4). II Br:s 1 inside grown together (like all the 

 following primipostaxillar ossicles), rectangular II Br 2 broader on the outside, nar- 

 rovver on the inside. II Br 3 narrow, bandshaped (breadth o times the length) form- 

 ing a syzygy with the obtuse-angled or rectangular IIBr4. The II Br:s inside 

 forming curved lines with each other, so that the interspace appears pear-shaped 

 (ef. A. H. Clark op. 34, fig. on p. 88 of Comaster parvus). 



The III Br:s are 2 (1 — or +2), the IV Br:s 4 (present in 3 cases). 



First Br. syzygy between the 3 d and 4 th segment. Second about the 10 th . 

 Third about the I5 th , etc. with an interspace of about 5 segments. About the 7 

 first segments discoidal, afterwards with produced distal ends irregularly wedge-shaped. 



The number of the arms > 39 (probably 42). The anterior arms about 105, 

 the posterior 80 mm. Mouth marginal. All the arms with their genital pinnules 

 swollen and, except some of the posterior ones, provided with ambulacral furrows. 

 Anus central, inflated. Small lime-granules in the skin. 





