1901.] NATURAL SCIENCES OF PHILADELPHIA. 173 



the rays the spines seem to be less regular in their arrangement; 

 both the dorso- and ventral-laterals are about thirty in number. 

 The rectiform pedicellaritc are similar to the type (I. c, PI. IT, figs. 

 3 and 4). Those near the dorsal spines are smaller than those 

 round the lateral. The cruciform pedicel larite, however, seem to 

 differ, being somewhat longer than in the type, and the jaws more 

 convex on their outer surfaces. At the biting tip are two very 

 large, sharj:* teeth and smaller, scattered teeth are on the concave 

 surface. These cruciform i^edicellarise form very prominent 

 clusters around the two lateral rows of spines. 



The sjDCcies was found originally b}^ its authors in Advent Bay, 

 Spitzbergen, at a depth of 60 fathoms, and they also report two 

 specimens from the Kara Sea as a variety of A. gunnerl. 



This is the first recorded specimen from Greenland waters. The 

 color in the living state corresponds. Dr. Ortmann tells me, to the 

 description given by Danielssen and Keren, " deep red on the 

 aboral surface, Avhity-yellow on the oral surface." The present 

 alcoholic specimen is 3'ellowish -brown. 

 7. Stichaster albulus (Stimpson). 



Astcracnntltion albulus Stimpson, Synopsis 3Iarine Invertebrates of 



Grand Manan, p. 14, PL XIV, fig. 5, 1853. 

 Stichaster albulus Verrill, Proc. Boston. Soc. Nat. Hist., X, p. 351, 



1866. 



Station 4. Upernavik, 8-10 fathoms. 2 specimens. 



Station 9. Saunders Island, 5-10 fathoms. 4 specimens. 



Station 11. Northumberland Island, 10-15 fathoms. 5 speci- 

 mens. 



Station 18. Foulke Fjord, 15-20 fathoms. 10 specimens. 



Station 29. Olriks Bay, lower narrows, 7-25 fathoms. 3 speci- 

 mens. 



Station 40. Granville Bay, 20-30 fathoms. 1 specimen. 



Station 50. Karnah, 30-40 fathoms. 2 specimens. 



All the specimens have the characteristic three short and three 

 long arms. Largest specimen: radius of long arm 24.5 mm., of 

 short arm 0.0 mm. 



Distribution. — Eastport, Me., and Grand Manan; south of 

 Halifax, 85 fathoms;^ Greenland, Godhavn and Holsteinborg 

 (Valorous Ex.), Port Foulke (Hayes Ex.), Franklin Pierce Bay 

 (Nares Ex.), Iceland, Spitzbergen, Nova Zembla. 



^ Challenger Report. 



