72 



6. Stichaster albulus (Stimps.). 



Lütken: Oversigt over Grønlands Echinodermata. 1857. p. 30. {Ast. 

 ргоЫета Stp.). — Danielssen & Koren. Op. cit. p. 31. — Duncan & 

 Sladen. Op. cit. p. 29. — Ludwig: Op. cit. p. 479. 



Angmagsalik, 9—0 fathoms, 1 specimen. — Ryders Sund, 

 30 fath. I sp. — Off Henry Land, 20 fath., 2 sp. — Jan Mayen, 

 ISfath., 3 sp. — Kap Borlasse, 2 sp. 



The figure given by Danielssen & Ko ren of the forcipi- 

 form pedicellariæ is not good; upon the whole it is impossible 

 to get a clear conception of the structure of these pedicellariæ 

 without isolating the valves and examining them from the inner 

 surface. They are much like the common form in Ästerias 

 (PI. 11. Fig. 2). 



7. Cribrella sangulnoleiita (0. F. Müll.). — PI. II. Fig. 7—9. 



Lütken: Op. cit. p. 31. — Sars: Norges Echinodermer. p. 84. — Dun- 

 can & Sladen: Op. cit. p. 32. — Bell: Op. cit. p. 95. — Ludwig: Op. 

 cit. p. 472. 



Кар Tobin, 57 fathoms, 2 small specimens. — Jan Mayen, 

 155 fath., 1 large specimen (R = 70 mm.). 



From Forsblad Fjord there are two rather large, but badly 

 preserved specimens which are so unlike the typical form that 

 it seems to me to be rather doubtful, if they can be referred 

 to this otherwise very variable species. As, however, I cannot 

 on this occasion carefully examine the variations of this species, 

 I will only here point out the differences between these two 

 specimens and the typical form. The question, if they must 

 form another species, I intend to deal with in a more detailed 

 manner, when working out the « Ingolf» -Asteroidea. 



The dorsal skeleton is a rather open, irregular meshwork, 

 and in the meshes are found one or more (3—5) small, isolated, 

 round or a Httle elongated plates. The spines are placed singly, 

 not in clusters (pseudopaxillæ), along the frames. Also the small 

 plates in the meshes carry isolated spines. The spines are slender, 

 a little longer (0,2 — 3 mm.) than in the typical Cr. sanguinolenta; 



