56 Zoological Society. 
for the last three weeks Dr. Busch of Berlin, who is making a 
scientific tour of Great Brita, with a view of pursumg anato- 
mical researches among our marine animals. He left for Dublin 
last night. His microscope was a magnificent machine. I 
availed myself of its powers, and placed the bivalves under its 
magic influence. The sight was delightful. I could see the 
ingress of water into the anterior siphon of K. suborbicularis 
and K. rubra, the ejectment of feces from both distinctly. The 
alternate spasmodic action and forcing of water through the 
anterior tube of K. suborbicularis free of any admixture was 
distinctly seen. The power employed was very great. The 
animal, one that had been in confinement for some time. This 
creature was removed from the field and a K. rubra substituted ; 
the same power being employed. The anterior siphon was in 
constant motion; and the water, crustacea, and minute atoms 
floating on its surface were distinctly seen to enter it : no regur- 
gitation took place anteriorly. I kept my eye to the instrument 
watching the creature’s movement until my retina was nearly 
paralysed, without detecting the “placid stream.” I have daily 
during the last six weeks examined a score of K. rubra, both 
recent specimens and old prisoners, with lenses of different 
powers,-—employed various contrivances with compound mirrors, 
lenses, &c., without detecting the current of water passing out of 
ats anterior siphon. 
Believe me, my dear Sir, yours very truly, 
J. Alder, Esq. W. P. Cocks. 
PROCEEDINGS OF LEARNED SOCIETIES. 
ZOOLOGICAL SOCIETY. 
June 13, 1848.—Harpur Gamble, Esq., M.D., in the Chair. 
3. DESCRIPTION OF NEW SPECIES OF THE GENUS CYPR#A. 
By J. S. Gasxoin, Esa. 
1. Cyprawa ‘TuersitEs (High-backed Cowrie). Cyp. testd ovatd, 
gibbosd, dorso elevato, basi latd plandque, saturate rufescente-fuscd ; 
antice posticeque depressiusculd, aperturd angustatd, postice re- 
curvd ; dentibus albis, distinctis, labii externi validis, columellari 
minis prominentibus ; sulco columellari antice profundo, lato ; 
extremitatibus valdé productis, canali antico pleno. 
Shell ovate, very gibbous and high-backed, of a very dark, reddish- 
brown colour, not uniformly equal in intensity; a curved whitish 
mark exists over both the anterior and the posterior extremities, at 
which places there is a depression, as though the mantle had not 
deposited any substance there after it had begun to secrete the 
colouring-matter, particularly that at the last whorl of the spire ; 
