278 Th. Mortensen. 



25. Cucumarîa frondosa (Gunn.). 

 PI. XVII. Figs. 9-10, 13. 



Cucumaria frondosa Dû ben & Koren. 1844. Öfvers. Skand. Echino- 

 dermer. p. 293. Tab. IV. Fig. 1. 



— assimilis Düben & Koren. 1844. Ibidem, p. 296. Tab. XI. 



Fig. 54. Tab. IV. Fig. 2. 



— frondosa Lütken. 1857. Grønlands Echinod. p. 2. 



— шш«/а (Fabr.) — — — — p. 7. 



— frondosa Duncan & S la den. 1881. Mem. Ech. Arctic 



Sea. p. 2. PI. I. Figs. 1—2. 



— — Bell. 1892. Catalogue of British Echinoderms. 



p. 39. PL IV. Fig. 2. 



— — Ludwig. 1900. Arktische u. subarktische Holo- 



thurien. Fauna Arctica. p. 141. 



— minuta Ludwig. 1900. Die Holothurien. In Döderlein. 



"01ga"-Echinodermen. p. 229. 



— frondosa Ludwig. 1900. Ibidem, p. 229. 



— — M ich ailo vskij. 1903. Echinod. Russ. Exp. 



Spitzbergen, p. 4. 



— minuta Micha i lo vskij. 1903. Ibidem, p. 5. 



— frondosa Clark. 1904. Echinoderms Woods Hole Region. 



p. 566. PI. II. Figs. 65-66. 



— minuta Grieg. 1909. Brachiopods and Molluscs, with a 



supplement to the Echinoderms. II. "Fram" 

 Exped. 1898—1902. Nr. 20. p. 43. 

 Non. Cucumaria minuta Levinsen. Kara-Havets Echinodermata. 



p. 383. Tab. XXXIV. Figs. 1 — 3. (= Cue. 

 glacialis Ljg.). 

 — — G. Pfeffer. Echinodermen von Ost-Spitz- 



bergen nach der Ausbeute der Herren Prof. 

 W. Kukenlhal u. Dr. A. V\^alter im Jahre 1889. 

 Zool. Jahrb. Abt. f. Syst. VIII. 1895. p. 109. 



Some large specimens from Stations 66, 71 and 95. ^ 



In 1857 Liitken, in his "Oversigt over Grønlands Echinoder- 

 mata", thought he had rediscovered the Holothuria minuta of Fa- 

 bricius (Fauna Groenlandica Nr. 346) and gave a description of it, 

 pointing out as the main characters distinguishing it from the young 

 Cue. frondosa that the "three series of tubefeet are more developed 

 than the other two": further that "the skin is rather closely covered 

 with roundish plates which under the microscope prove to be of a 

 somewhat undefined roundish shape, almost as Düben & Koren 



1 For the localities of the stations see the list p. 300. 



