of the North of Ireland. 93 



Odostomia truncatula, Jeffreys. 



A single specimen found among Turbot Bank sand by Mr. Jeffreys ; and 

 later it was dredged in 25 fatboms off Black Head — Hyndman ; specimens 

 from tbence are in tbe Belfast Museum. It is a very rare species, and its 

 otber Britisb stations are all on tbe Soutb of England coasts. 

 Odostomia Siukisi, Jeffreys. 



"Bundoran, Co. Donegal, in drift sbell sand (Waller) " — Jeffreys. 

 Odostomia rissoides, Hanley. 



Found by Jeffreys in Turbot Bank sand— Hyndman. Bundoran— B elf. 

 Mus. Coll. It is a littoral species, and is distributed tbroughout tbe Britisb 

 coasts. 

 var. alba. Turbot Bank, Mr. "Waller — Hyndman (sub 0. alba), 

 var. nitida. Found by Jeffreys in Turbot Bank sand— Hyndman (sub 0. 



nitida). 

 var. dubia. As last (sub 0. dubia). 

 Odostomia pallida, Montagu. 



" A very few individuals of tbis species bave been dredged in Belfast Bay, 

 and taken in tbe stomacb of the grey mullet captured tbere ; under stones 

 between tide marks. Strangford Lough, on soft sand and ooze" — Thomp- 

 son. Dredged in the vicinity of the Turbot Bank on several occasions — 

 Hyndman (sub 0. eulimoides). In shell sand dredged near Ardmillan in 

 Strangford Lough— R.L1.P. Tt is one of the commoner Odostomice, and lives 

 on the ears of Pecten opercularis and P. maximus, in the coralline zone ; the 

 littoral habitat assigned above by Thompson for the species, casts some doubt 

 on the correctness of his determination. 

 Odostomia acuta, Jeffreys. 



From the Turbot Bank ; determined by Mr. Alder — Hyndman. 

 Odostomia conspicua, Alder. 



As last ; like it, it is an inhabitant of the coralline zone (15-50 fathoms). 

 Odostomia unidentata, Montagu. 



" More frequent in the shell sand that has come under my notice than any 

 other species of Odostomia " — Thompson; he mentions Strangford Lough as 

 a locality. Hyndman took it several times on the Turbot Bank, and Dickie 

 off the entrance to Strangford Lough. Twin Islands in Belfast Harbour— 

 Mr. Swanston. 

 Odostomia turrita, Hanley. 



Turbot Bank, Mr. Waller —Hyndman (sub 0. unidentata var. turrita). " 

 Odostomia plicata, Montagu. ■ 



'•It has been found in Belfast Bay and Strangford Lough by Mr. Hyndman 

 and myself; at Cundoran by Mrs. Hancock" — Thompson. Bare, off 

 Bangor, and on the Turbot Bank— Hyndman. Jeffreys gives no northern 

 stations for the present species, and says that 0. turrita has been often 

 mistaken for it. 



