Report on the Echiiioderms of North-East Greenland. 259 



Cribrella ociilata Daniel sseii & К о ren. 1884. Norske Nord- 



havsexped. Asteroidea. p. 34. 



Echinaster scrobiculatus Da nielssen & Ko ren. Ibidem, p. 40. 



PI. VI. Figs. 10-11. PI. VII. Figs. 12-14. 



Cribrella sanguinolenta Ludwig. 1900. Arktische Seesterne. Fauna 



Arctica. p. 472. 



— oculata W.M.Rankin. 1901. Echinoderms collected 



ofi' the West Coast of Greenland by the Prince- 

 ton Arctic Expedition of 1899. Proc. Acad. 

 Nat. Sc. Philadelphia, p. 174. 



— sanguinolenta Grieg. 1902. Oversigt over det nordlige 



Norges Echinodermer. Bergens Mus. Årbog. 

 1902. p. 28. 



— — Th. Mortensen. 1903. Echinoderms from 



East Greenland, p. 72. PI. II. Figs. 7—8. 



— — Michailovskij. 1903. Echinod. Russ. Exped. 



Spitzbergen, p. 19-21. 



— — H. Lym. Clark. 1904. The Echinoderms 



of the Woods Hole Region. Bull. U. S. Fish. 

 Comm. for 1902. p. 555. PI. III. Figs. 10— 11. 

 PI. IV. Fig. 22. 



— oculata Koehler, Echinodermes. Monaco. XXXIV. 



p. 102. 

 sanguinolenta Süss bac h u. Br eckner. 1910. Seeigel, 

 Seesterne u. Schlangensterne d. Nord- u. 

 Ostsee, p. 224. 



Forma scabrior Michailovskij. 

 Stat. 63. Stormbugt, 10—20 m. 1 large specimen (R = 42 mm). 



— 72. a. — — 1 specimen. 



Forma lœvior Michailovskij. 

 Stat. 57. a. Danmarks Havn, 15—20 m. 3 specimens. 



— 63. Stormbugt, 10 — 20 m. 1 specimen. 



— 104. (76°6'N. 13°26'W.), 200— 250 m. 1 specimen. 



In the "Echinoderms from East Greenland" (loc. cit.) I pointed out 

 that two rather distinct forms of this species may be distinguished, 

 one having single dorsal spines, not trifid at the point, and the adam- 

 bulacral plates carrying only a single transverse series of spines; 

 the other having the spines in groups (pseudopaxillæ) and trifid at 

 the point, and the adambulacral plates carrying double transverse 

 series of spines. The question of the possible specific value of these 

 two forms was postponed till a future occasion. — Contemporane- 



