of the FUlterji Board fur ScoilaiuL 313 



fathoms. I liave not found it in the Cromarty Firth. It is also recorded,* 

 on the aiithority of the late Dr. Sutherland, of Invergordon, from the 

 east coast of Ross-shire, but no depth is given. 



The bath} metrical range of 0. nigra extends from 3 to 20 fathoms 

 (in the Firth of Clyde, where it is extremely abundant) to 87 fathoms (in 



the F'arcie hannel). 



OPHIOTHRICID^. 



Ophiothrix. 



Oph iothri.i' fragilis, Abilg. 



1892. Ophiothrix fragilis, Bell, Brit. Mus. Cat., pp. 131, 133. 



Ophiofhrix fragi/is has been taken in moderate iiunibers at nine of the 

 Moray Firth stations, and is found fairly abundant all along the main 

 channel of the Cromarty- Firth, from above Castle Craig to the Suter 

 Heads, in from 3 to 10 fathoms. 



Its bathymetrical range extends from low spring tide mark, or the 

 Laminarian zone, to 516 fathoms. 



It is often found in the stomachs of Cod, Haddoch; Cocd-Jish, Cat-fish, 

 Plaice, Turbot, Halibut, Lemon-sole, Long-rough dab, and Common dab. 



CLADOPHIUR^. 



ASTRONYCIN^. 



AstroNyx. 



Astrong.c Lovenl, Miill. and Tr. 



1892. Astronyx Loveni, Bell, Brit. Mus. Cat., pp. 13(5, 137. 



I have included this genus as doubtful from the IMoray Firth. I have 

 not taken it in the Firth myself, but four masters of Aberdeen trawlers 

 to whom I have shown specimens say that they have taken it in their 

 trawl, some 10 or 15 miles S. by E. of the Smith Bank, in 40 to 50 

 fathoms, but that it is very rare. 



Mr G. Sim, of Aberdeen, also informs me that he obtained specimens 

 from the trawlers on several occasions, but he could not be sure that they 

 wei-e obtained in the ]\loray Firth area. 



Astronyx Loveni has been obtained in the stomach of Halibut and 

 Conger. 



OPHIUROIDEA. 



Ophiura. 

 Ophiura ciliaris, Liiiu. 



1892. Ophiura ciliaris, Bell, Brit. Mus. Cat., pp. 106, 107 108. 



Ophiura ciliaris has been taken liy me at ten of the sixteen special 

 stations, in from 7 to 34 fathoms, and in abundance off the Suter Heads 

 of Cromarty, in 12 to 15 fathoms. 



The bathymetricai range of this species extends in the British seas from 

 7 to 87 fathoms; in the latter depth I dredged it oft' the island of North 

 Rona in 1882. 



In the Mediterranean this species has also been taken at a depth of 1 00 

 fathoms. 



* Bell, op. lit. 



