1898-1902. No. 13.] ECHINODERMATA. 



Crinoidea. 



Antedon eschrichti, J. Muller. 



(PI. 3, fig. 2). 



Bay to the south of Sjopolse Ness; 30—40 m. Small 



stones with Laminaria. 



The Havne Fjord, Winter harbour; about 60 m. Small 



stones and clay. 



The Havne Fjord, Winter harbour; about 60 m. Small 



stones with calcareous algae. 



The Havne Fjord, Winter harbour; about 60 m. Small 



stones and clay. 



The Havne Fjord, Winter harbour; about 40 m. 



The mouth of Stor Valley. 



The mouth of Stor Valley; 60 — 64 m. Small stones 



and sand. 



Off Forvisnings Valley; 40 — 44 m. Small stones 



and clay. 



The head of Gaase Fjord; 40—6 m. Small stones 



and clay. 



The head of Gaase Fjord ; about 40 m. Small stones. 



The head of Gaase Fjord; about 14 m. 



The cirri in the larger specimens are up to 65 mm. in length, and 

 have 51 joints. The diameter of the calyx is up to 32 mm. Various 

 writers, such as Michailovskij (26, p. 40), Grieg (15, p. 13), and Doder- 

 LEiN (9, p. 398), have already drawn attention to the fact that the relative 

 length of the 3rd pinnule is subject to great variations, even in the same 

 specimen. The specimens from the Fram Expedition exhibit the same 

 variableness. In one, for instance, the proportion in length between the 

 2nd and 3rd pinnula on three of the brachia varies between 1 : 0.78 and 

 1:1.19, in another between 1:0.66 and 1:0.85; and in a third spe- 

 cimen it varies between 1 : 0.72 and 1 : 0.92 on four of the brachia. 



The calcareous plates in the perisoma of the genital pinnules are 

 comparatively more feebly developed than in specimens from the North 

 Atlantic, and are much more perforated, and looser in structure. They 

 moreover vary very considerably in form and development. In young 

 specimens they are less developed than in older ones; and whereas m 

 the latter they form a continuous series, in young specimens they are 

 separated. (PI. 3, fig. 2). 



