44 Messrs. Barrett and M'Andrew on Echinodermata. 



dredged in deep water between Omnoeoe and Hammerfestj 

 which has not been described; and in deep water off the coast of 

 Finmark we procured two new species of Astrogonium. A single 

 specimen of the only species of this genus previously known 

 to live on the coast was dredged in 100 fathoms near Hammer- 

 fest. Ctenodiscus crispatus was not rare on a muddy bottom in 

 20 to 50 fathoms : Ctenodiscus pygmceus is probably the young 

 of this species : several small specimens were procured. The 

 two species of Solaster occurred only very young, ^ of an inch 

 in diameter; great numbers of these small star-tish were found 

 among ^Tullipora in shallow water. Uraster rubens and Uraster 

 glacialis were found in great numbers at low- water; the former 

 species attains a large size in the south. Twice it was found 

 feeding on the Periwinkle : it clasps the shell with its live rays, 

 and protrudes its stomach into the shell, even as far as the apex : 

 the operculum is not eaten. It also feeds on Chitons. 



OphiuridcE. — Only seven species of this order were collected 

 during our cruise, all of which are included in a MS. list of the 

 Norwegian Echinodermata furnished us by M. Lutken of the 

 University Zoological Museum, Copenhagen. Three species 

 only occurred abundantly. Ophiolepis filiformis is very common 

 in the south, on a muddy bottom. O. bellis, Forbes, is very 

 common, from Drontheim to the North Cape, on stony and 

 rocky ground, from low-water to about 30 fathoms ; this spe- 

 cies, like 0. rosida, varies much in colour; scarcely two speci- 

 mens can be found alike. O. texturata, though not so common 

 as the last twb^ipecies, was generally distributed along the whole 

 coast, and, like most species having a wide geographical range, 

 had a great range in depth, from 20 to 200 fathoms. 



Crinoidea. — The two small species of Crinoidea living on the 

 coast were not seen ; they are quite distinct from the two spe- 

 cies found in Scotland, the largest of which was named Comatula 

 Woodwardii, in the Annals for January 1857. AVe had over- 

 looked the little Comatula of that name from the Crag, de- 

 scribed by Prof. E. Forbes ; and as there are now two spe- 

 cies called C. Woodwardii, we tnust change the specific name 

 of the species last described. We propose to call it Comatula 

 celtica. 



Echinodermata. 



Note. — The figures in the following table indicate the greatest and least 

 depths at which each species was dredged ahve. In the third column the 

 kind of sea-bottom is named ; in the fourth, the letters express the degree 

 of frequency of occurrence : — a, abundant, generally distributed and plen- 

 tiful ; /, frequent ; /, local, more or less plentiful in a few localities ; r, rare ; 

 and V. r. veiy rare, when but few examples occurred. In the fifth column 



