16§ 
The irisli I^aticralul. 
August "Sep tc mbcr, 
Bulla hydatis (Liniic). 
Very rare. Balbriggan, very rare : Turim, 'i6. Bal- 
briggan (J. Adair), Adams, '78. 
Acera bullata (Miiller). 
Locally abundant. Balbriggan : Turton, '16. Swords 
estuary, in pools at low water near the north-west shore, 
where I found hundreds alive (J. Adair), Adams, ^y8 — a 
few here near Lissen Hall, 1910 : N.C. Baldoyle : Hart, 
'92. Malahide Island, opposite the Arches : Miss A. L. 
Massy. 
Philine aperta (Linne). 
Locally abundant living on oozy bottoms all along the 
coast ; shells abundant in drift after easterly gales, as at 
N. Bull, S. BuH, and Portmarnock, 1905-13 : iV.C. Largest 
shell, 21 mm. x 14-5 mm. 
P. scabra (Miiller). 
Rare in drift and in dredgings. At Portmarnock (Mr. 
Warren), Thompson, '44. Dalkey Sound : Walpole, '53. 
Five shells in drift, North Bull, i on S. Bull, and i in 10 f. 
Dalkey Sound, 1 906-1 1 : N.C. Largest shell, 5-5 mm. 
long. 
P. punctata (Clark). 
Rare, both living specimens and shells, in dredgings and 
between tide -marks. Dublin Bay : Jeffreys, '67. Port- 
marnock : Adams, '78. Seven shells taken in four drift 
gatherings at Lambay, Portrane, Rush and N. Bull, 1906- 
07 ; 6 living specimens in from 8-17 f. off Skerries and 
Dalkey, 1906-13 ; and one living specimen at low water 
mark, Bullock, 1912 : N.C. Largest, 2-5 mm. long. 
In captivity this species is an active crawler and much 
given to floating foot upward on the water surface. 
