14 



JAMES A. GRIEG. 



[2nd arc. EXP. FRAM 



Winter harbour, Havne Fjord; up to 40 m. Small stones. 

 About Vestre Sound; 20—60 m. 

 Mouth of Stor Valley; about 40 m. 

 Sjopolse Ness; 30 — 50 ni. Small stones. 

 Winter harbour, Havne Fjord; about 30 m. 



According to Danielssen and Koren (4, p. 17), the proportion of 

 the disc-radius to the arm-radius in Asterias panopla is as 1 : 11.5. In 

 the specimens described by Doderlein (7, p. 204), it varies between 1 : 9.78 

 and 1 : 12.36 ; and Michailovskij (26, p. 474) found it between 1 : 12.8 

 and 1 : 13. In the specimens now under discussion, the proportion varies 

 between 1 : 7.54 and 1 : 10.5. For purposes of comparison, it may be 

 stated that in some specimens from the Norwegian North Atlantic 

 Expedition, I found that it varied between 1 : 7.9 and 1:11; and in a 

 specimen from the Kara Sea it was as 1 : 8.46. 



In the diagnoses of this species, the great constriction of the arms 

 at their base is emphasised. The greatest breadth of the arms is not 

 until a little way out from the base. Specimens may however be found, 

 as the above table shows, in which the arms are widest at the base. 

 These specimens, in their habitus, greatly resemble Asterias lincki i. 

 stellinura, although they may be easily distinguished from that species, 

 as they have a different armature of spines and pedicellariae. 



Several authors, e. g. DoDERLteiN, Levinsen (20, p. 394) and Nor- 

 man (31, p. 409), have already pointed out the great variety in the 

 spinous armature on the abactinal side of the disc and arms. The carinal 

 row of spines never seems to extend beyond the proximal half of the 

 arm, and as a rule occurs only upon the innermost third. It may 

 appear as a distinct row, but is quite as frequently reduced to a 

 few scattered spines, and may even be altogether absent on one 



