270 APPENDIX. No. IX. 



ensis !, nothing but the clean calcareous plates of the test re- 

 maining. In the stomach of another (very much smaller) 

 specimen was found the shell of Trochus olivaceus, Brown 

 (kindly determined by Dr. Grwyn Jeffreys). 



Solaster endeca (Linn.), Forbes. 



One young specimen, 14 millims. in greatest diameter, was 

 dredged by Capt. Feilden in lat. 65° N., 26 miles from the 

 Greenland coast, at a depth of 30 fathoms. 



Solaster furcifer, v. Diiben and Koren. 



Coll. Feilden : Cape Frazer, 80 fms. 



A starfish of somewhat depressed form, having five broad 

 flat arms. Proportion of disk-radius to length of arm 1 : 3. 

 The calcareous network of the dorsal surface is very regular ; 

 and the spine-clusters or paxillse, which spring from the inter- 

 sections, form longitudinal series which run parallel to the 

 median line of the ray ; consequently only two or three of the 

 middle series reach to the tip, although from fourteen to sixteen 

 may be counted at the base of the arm. The paxillse are 

 very compact and have a stout rounded base, nearly twice as 

 wide as high, bearing a crown of spinelets (about fifteen to 

 twenty) in length about equal to the diameter of the base. 

 The spinelets are, as a rule, flat ; and from the angles of the 

 apex, which is as broad as or broader than the base, proceed 

 two small denticles, giving the appearance to the spinelet of a 

 two-pronged fork ; sometimes the spinelet is triangular, in 

 which case there are three prongs. On the sides of the arms 

 are two rows of large paxillae or spine-clusters, the lower 

 series being twice the breadth of the upper ones, and these 

 themselves being much larger than the rest of the dorsal 

 paxillse just described. There are about twenty large mar- 

 ginal paxilla? from the arm-angle to the tip. Each interam- 

 bulacral plate bears three equal-sized spines, running parallel 

 to the furrow ; and exterior to these are three or four spines 

 webbed together into a ' comb ' and placed obliquely, or even 



