of the North of Ireland. 
103 
ORDER PL EUROBR ANCHIATA . 
Cylichna acuminata, Bruguiere. 
Mr. Waller obtained a single dead shell of this species on the Turbot Bank, 
and Hyndman another. These are recorded in Hyndman’s Beports, under 
, the name Ovula acuminata. 
Cylichna umbilicata, Montagu. 
Very rare ; dead shells in Turbot Bank sand — Hyndman. 
Cylichna eylmdraeea, Pennant. 
‘ ‘ Generally distributed” — Thompson {sub Bulla cylindracea). Dredged, 
in a dead state, on the Turbot Bank, and off Ballygalley Head, by Hyndman, 
and in Castle Ward Bay, Strangford Lough, by Dickie. Bundoran— Belf . 
Mus. Coll. 
[Cylichna striata ( Bulla striata , Brown). 
“ The late Mr. Thompson of Belfast erroneously noticed this arctic species 
as found at Bangor, Co. Down, by Mr. Hyndman. It inhabits the eastern 
coasts of North America, Greenland, and Finmark” — Jeffreys.] 
Utriculus mammillatus, Philippi. 
Turbot Bank, dead, Mr. Waller — Hyndman ( Cylichna mammillata), 
Utriculus truncations, Bruguiere. 
u Generally distributed ” — Thompson ( Bulla truncata ). Hyndman occa- 
sionally dredged dead shells on the Turbot Bank ( Cylichna truncata ;), but 
does not record haying taken it elsewhere. Magilligan— Belf. Mus. Coll. 
Twin Islands in Belfast Harbour — Mr. Swanston. 
Utriculus obtusus, Montagu. 
Generally distributed ” — Thompson ( Bulla obtusa ). Hyndman notes it 
(sub Cylichna obtusa ) from the Turbot Bank several times, and from off Bally- 
galley Head, in a dead state. Dead shells dredged in Strangford Lough — 
Dickie, and E.L1.P. It frequents muddy estuaries chiefly. 
var. liLaj onkaireaaa. “ From the Turbot Bank, dead; determined by Mr. 
Jeffreys, in Mr. Hyndman’s cabinet”— Hyndman, 1859 Eeport {sub Cylichna 
lajonkaireana ) . 
Utriculus hyaliuus, Turton. 
“Obtained in shell sand collected at Bundoran by Mrs. Hancock” — 
Thompson ( sub Bulla hyalina). “Dead, in 80 fathoms, off the Maidens” — 
Hyndman {sub Amphisphyra hyalina). 
Acera bullata, Muller. 
Generally distributed — Thompson ( sub Bulla Altera). It abounds on the 
Zostera banks of Strangford, Belfast, and Larne Loughs, and in Lough 
Foyle. Hyndman says he has sometimes seen it swimming in the channel 
leading to the Quays at Belfast, giving out a purple liquid when touched. 
