20 THE INVERTEBRATE FAUNA 



OPHIUKOIDEA. 



OPHIURID^E. 



Ophioglypha lacertosa (Linck). 



Firth of Forth (E. F.); Firth of Forth 



This species is the Ophiura texturata of 

 Forbes. It is common near the mouth of 

 the Firth, and becomes scarcer higher up. 

 We have dredged it on several occasions 

 at depths of 4 to 7 fathoms. 

 0. albida (Forbes). 



Firth of Forth (E. F.); Firth of Forth 



The Ophiura albida of Forbes. It is a 

 very abundant species in the Firth, and 

 we always obtained it in great numbers on 

 the oyster banks near Inchkeith, and 

 further down the estuary. It prefers 

 sandy bottoms. 



0. affinis (Lutken). 



Bass Eock, 24 fathoms (M. & #).* 



Ophiocoma nigra (0. F. Mull.). 



Firth of Forth (M'R) ; Firth of Forth 

 (F. M. .). On the deep-sea lines. 

 Ophiocoma granulata of Forbes. This 

 species is not common in the Firth. We 

 have obtained it at Newhaven, the speci- 

 mens having probably been brought in on 

 the fishermen's lines from the vicinity of 

 the May Island. On some parts of the 

 west of Scotland this is the most abundant 

 species in a few fathoms of water. 



OpliiopTiolis bellis (Johns.). 



Firth of Forth (Howd.) ; Prestonpans (Ed. 

 Mus.) ; Firth of Forth (F. M. #). 



* II. Jahresb. d. Komm. z. Untersuch. d. deutsch. Meere in Kiel, 

 IV., Echinodermata. 



