414 Scientific Proceedings, Royal Dublin Society. 
Ill. LAFQ@IDZA. 
Lafcea dumosa, Fleming. 
Known from various localities all round the coast. 
Lafoea parvula, Hincks. 
On Nitophyllum, from the north of Ireland, collected by 
Prof. Hincks, Toronto (1868). 
Lafoea pocillum, Hincks. 
On Eudendrium, at Monkstown (D. St. J. Grant) ; on Diphasia 
attenuata, Dublin Bay (1886) ; on Vesicularia spinosa, thine 
(2 ED.): 
Calycella syringa, Linn. 
Very abundant, growing on other zoophytes, in dredzinee 
from all parts of the coast. 
Calycella fastigiata, Alder. 
Apparently a rare British form, but rather plentiful on the 
west coast of Ireland. On Sertularia abietina, Ballinskelligs Bay 
(R. D. 8.): south-west of Galley Head, 48 fathoms; Dursey 
Island, south of Glandore Harbour; south-west of Ireland, 50 
fathoms (1898). 
Calycella pygmea (Alder), Thornley. 
This is the Lafwa pygmea of Alder (MS.). It has lately 
been transferred to the genus Calycella (1894) after confirmation 
of Alder’s manuscript figure of it as an operculated form, and the 
discovery of the gonotheca and gonophore, which, except in size, 
closely resemble those of C. syringa. Previously to seeing Miss 
Thornley’s Paper, I had observed the same character on material 
gathered at Roundstone, Connemara, and am able to confirm both 
the presence of the operculum and the extra-capsular gonophore. 
The hydrotheca in the Irish specimens is not so sharply marked 
off from the pedicel as in the figures given by Hincks, Pl. xl, 
and the number of rings may be as many as six or seven, Some 
specimens also show that, as in C. syringa, the upper part may be 
divided into segments by lines of growth, but I have never seen 
more than one, while there are occasionally two or three in the 
latter. 
