274 
MOLLUSCA. 
Alder) of this species, were obtained at Glandore Bay, County of Cork, 
by Professor Allman, in the month of August, 1842. Mr. Alder himself 
procured specimens of D. aspera, during an excursion with Dr. Farran of 
Dublin to Malahide, on the coast of Dublin. 
Doris pilosa, Mull. 
The first Irish specimen of this Doris that I have seen was found in 
Dublin Bay, by Professor Allman, to whom I am indebted for it ; subse- 
quently two individuals were taken by Dr. J. L. Drummond, when dredg- 
ing in the month of June in Belfast Bay. 
D. sublcevis, mihi. 
D. convex, broadly ovate, smooth, basal sheaths to the tentacula, foot 
broad, branchial filaments 8, long and finely plumose. 
Length of specimen (from spirits) 7 lines ; height equal to about half 
the length ; breadth 4^ lines ; margin of cloak narrow ; foot of nearly 
equal breadth throughout ; tentacula long and acuminated. Colour 
white. 
In being smooth, this species agrees with the D. Icevis , Linn., Mull. Z. D. 
vol. ii. p. 9, tab. 47, figs. 3 — 5, but differs much in its convexity and in 
the breadth of the foot, which is represented very narrow in that species. 
Dredged in Belfast Bay by Mr. Hyndman, September, 1835. 
Genus Goniodoris. 
G. elongata , mihi. 
G. elongated, narrow ; a row of papillae on each side the back ; branchial 
filaments about 10, plumose. 
Length of specimen (from spirits) 3 lines ; breadth 1 line ; height f 
line ; breadth of body equal throughout. 
This species resembles in form the D. gracilis and D. pallens of Rapp. 
Nova Acta, vol. xiii. part 2, p. 522, tab. 27, figs. 9 and 10. 
I obtained this mollusk in June, 1838, between tide-marks, at the island 
of Lambay, off the Dublin coast. 
G. nodosa , Mont. 
Twelve specimens of G. nodosa occurred on a plant of Fucus vesiculosus, 
dredged in Killery Bay, County of Galway, in July, 1840. Dr. Ball, 
Professor E. Forbes, G. C. Hyndman. — W. T. Mr. Alder found the 
species to be plentiful at Malahide in September last. 
Yar. G. — D. Darvicensis, Johnst. 
I have been favoured by Professor Allman with specimens of this Doris , 
of which he procured about a dozen in Courtmasherry Harbour, in the 
months of August and September, 1838. They were all found among 
the roots of Laminaria digitata cast ashore, and, being alive, a minute 
description of them, as observed in this state, was drawn up by Professor 
Allman. In all details except the following these individuals agreed 
with those described by Dr. Johnston in the Annals : — Slightly elevated 
white tubercles, chiefly disposed in straight lines, appeared on the sides 
of the body ; 9 branchial leaflets ; in the several specimens examined 
these do not encircle the vent, but are wanting for the space of \ of a 
circle posteriorly, two hinder leaflets shortest. 
Genus Polycera. 
P. quadrilineata , Mull. 
Frontal processes of the mantle 4 ; angles of the foot produced ; pair of 
branchial lobes rather small. 
