114 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 
*Cyclostrema serpuloides, Mont. 
Isle of Man in 20 fms. (Forbes, as Skenea divisa, 
Fleming): abundant living on seaweeds at low water 
in Fleshwick Bay (F.A.). 
[Trochus lineatus, DaC. 
Anglesea (Donovan) in Jeff. B.C. III, 318. This 
certainly requires confirmation as Forbes (Brit. Assoc. 
Rep. 1850, p. 255) says that the range of this species 
ceases In Cardigan Bay or a little higher up, the 
latter expression probably referring to the 8. coast of 
Carnarvonshire where it does occur. | | 
Trochus montacutt, Wood. 
Frequent living at Port Erin with T. twmidus (F.A.). 
Trochus millegranus, Phil. 
2 or 8 small ones living at Port Erin (F.A.). 
Trochus granulatus, Born. 
Alive off Morecambe (W.H.H.): occasionally thrown 
up dead on Lancashire coast. 
Trochus zizyphinus, L. 
Large and abundant at very low-water, Rhos Point 
near Colwyn (B.T.). 
var. lyonsti, Leach. c. alive off Pt. Lynas (Forbes): . 
living at Bull Bay and dead off Tynygongl and in 
Carnarvon Bay (F’.A.). 
var. levigata, Sow. Menai Straits and Bull Bay in 
Anglesea: littoral and dredged at Port Erin (F.A.): 
Rhos Point (B.T.). 
A specimen of the monstrosity mentioned by Jeffreys 
was dredged in the Menai Straits by Rev. A. H. Cooke. 
Lacuna crassior, Mont. 
Several alive 5 m. outside Fleetwood, in Sept., 1891. 
Lacuna dwaricata, Fab. 
Young c. in seaweed at Porthwen and Fleshwick 
Bay (F.A.): abundant on Laminaria beyond the pier 
at Llandudno and of very large size (B.T.). 
