191 3- CoLGAN. — Nudibranch Fauna of Co» Dublin* 167 
either side of the median denticle which was but shghtly 
prominent. 
Though not previously recorded for the Dublin inshore 
waters, this species was several times dredged in the Irish 
Sea off the Dublin coast, in from 20 to 53 f. (Farran '09). 
Embletonia pallida (Aid. and Hanc). — In August, 
1911, while examining some hydroids collected off Shen- 
nick's Island, Skerries, I detected two specimens of Emble- 
tonia, one 2*5 mm., the other under 2 mm. in length. They 
were associated with Galvina exigua and Tergipes despectus 
on Ohelia dichotoma. The larger specimen had a double 
row of papillae on either side of the body, those towards 
the central part much longer than the others. The papillae 
were yellow with orange tips. The second and smaller 
specimen was pale whitish yellow in colour, and bore only 
a single row of papillae on either side. The first agreed in 
form and size with Alder's original description of E. pallida 
(Jeffreys' Brit. Conch., v., 1869), and differed onty in its 
brighter coloration from Hancock's figure of that species 
given in Part VIII. of the " Monograph^ " ; the second 
agreed perfectly with the figure in colour while differing 
in the absence of a second row of papillae. Both specimens 
were lost before I had had an opportunity of examining 
the radula, but the larger, at least, may be safely assigned 
to E. pallida. The smaller individual may, perhaps, have 
been an immature state of the same species with imperfectly 
developed papillae. Apparently new to Ireland. 
CoRYPHELLA GRACILIS (Aid. and Hanc). — This elegant 
little nudibranch occurred to me in no less than six dredgings 
in July of this year, a total of 11 specimens being taken, 
ranging in length from 3 to 6 mm. Ten specimens were 
taken in 5 hauls off the Skerries islands in from 2 to 15 f., 
and one in 14 f. south of Dalkey Island. The coloration 
was the same in all of the specimens, the papillae being 
rather a clear orange than the reddish brown tint shown 
in Hancock's plate in the "Monograph." In all other 
respects the specimens agreed perfectly with that plate. 
Not previously recorded for East Ireland. 
1 " British Nudibranchiate Mollusca," part viii. (Supplementary). 
By Sir C. Eliot. Ray Society, 1910. 
