123 
Dr. Alcock read a paper on Foraminifera from mud washed 
out from a shell of Halia Priamus in Mr. Darbishire’s 
collection. He said that part of the interest of these 
specimens depended on the information they may give as to 
the nature of the sea-bed where this rare mollusk is found, 
the exact locality from which it is obtained by the Cadiz 
fishermen being still doubtful. He exhibited mounted 
specimens of about forty forms of Foraminifera, twenty-five of 
them agreeing with British ones as described by Professor 
Williamson, the others, so far as he knew, not British, and 
at present unknown to him. He said that the great abundance 
of Globigerina with fragments of large Orbulinae, appeared 
to indicate a deep-sea deposit, but the most remarkable feature 
was the extraordinary profusion of Textularia variabilis, a 
very considerable proportion of the whole mass consisting of 
these shells. Bulimina pupoides was perhaps next in 
abundance, and next to it, in about equal proportions, 
Cassidulina laevigata, C. obtusa, and Nonionina elegans. 
Rotalina Beccarii was plentiful but small, as were all the 
forms of Rotalina which occurred Lagenae were scarce and 
were very small hyaline varieties. Nodosaria radicula was 
rather common, and three very distinct varieties of it were met 
with, one of them remarkable for its large size and the raised 
rings upon its neck. Polymorphina was entirely absent ; and 
Polystomella, Spiroloculina, and Miliolina were represented 
by only a very few extremely small individuals. 
