75 
2nd December, 1880. 
R. D. Darbishire, F.G.S., Vice-President of the Section, 
in the Chair. 
Mr. Robert E. Cunliffe submitted a copy of the General 
Introduction to the reports of the “Challenger” expedition, 
and reported the progress made in the publication of some 
of the reports. 
Mr. Samuel Moore exhihited a parasitical Alga which 
he had found at Bridlington, growing upon Griffithsia ecjui- 
setifolia. 
Mr. E. Ward presented ~to the Society’s cabinet a slide 
containing valves of Aulacodiscus Africanus, which he had 
selected from a collection placed in his hands by the Section 
at the close of last session. 
Mr. John Plant, F.G.S., gave an account of his dredging 
experiences in Cymmeran bay, from Rhoscolyn to Aber- 
ffraw, on S.W. coast of Anglesea, in the years 1874 to 1880, 
and submitted a list of 191 species of marine molluscs 
occurring in that locality during the period named. 
January 17th, 1881. 
Alfred Brothers, F.R.A.S., President of the Section, in 
the Chair. 
Mr. Plant, F.G.S., exhibited some remarkably large and 
fine shells of the pearl oyster (Meleagrina margaritifera), 
from Somerset, Australia. Also a selection of N. American 
Unionidse. 
