70 THE ZOOLOGIST. 
PROCEEDINGS OF SCIENTIFIC SOCIETIES. 
Linnean Society or Lonpon. 
December 2, 1880.—Prof. Atiman, F.R.S., President, in the chair. 
Nine gentlemen were balloted for and elected Fellows of the Society, 
viz. :—Messrs. F. Arthur Canton (London), Charles B. Cory (Boston, U.S.), 
Charles Fawcett (New South Wales), Charles L. Jackson (Bolton), Paul H. 
M‘Gillivray (Victoria, Australia), R. W. Emerson M‘Ivor (Melbourne, 
Australia), and Ernest L. Sellon (Kensington, S.W.). 
A resolution of Council proposing certain alterations in the Bye-Laws 
was read. 
Mr. George Brook exhibited specimens of the phosphorescent Noctiluca 
miliaris, taken from the surface of the sea at the mouth of the Thames, and 
immediately thereafter placed in a weak solution of osmic acid, when shape, 
&c., was perfectly retained. 
Prof. 'T. Spencer Cobbold drew attention to a specimen of a rare Chinese 
fluke (Distoma sinense), showing the internal organs, especially the vitellary 
sacs, ova, and reproductive parts generally. 
A paper, “‘ Notes on British Tunicata” (Ascidiid®, part i.), by Mr. W. A. 
Herdman, was read by the Secretary. The simple Ascidians in the present 
family have generally a non-folded branchial sac with internal longitudinal 
bars, an eight-lobed branchial aperture and six-lobed arterial aperture. Of 
the British genera Ciona, Ascidia, and Corella, the first and third have a 
series of languets along the dorsal edge of the branchial sac, whilst the 
second has a continuous lamina; the first two agree in the straight stigmata 
of the branchial sac as distinguished from the third, in which it is curved. 
Each differs, moreover, in the course and position of its alimentary canal. 
Describing the latter peculiarities, aided by diagrammatic figures, the author 
thereafter proceeds to treat of a number of species of the genus Ascidia ; 
among others the following six are recognised as being new, viz., A. lata, 
A. fusiformis, A. truncata, A. triangularis, A. Patoni, and A. innominata. 
The series was obtained at Loch Long and Arran in Scotland. 
The seventh contribution to the Mollusca of the ‘ Challenger’ Expedition, 
by the Rev. R. Boog Watson, was read in abstract. This contains descrip- 
tions of species of the genera Atlis, Fenella, and Dunkeria, family Pyra- 
midellide ; of the genus Oniscia, family Cassidia; and of the genera Triton, 
Ranella, and Nassaria, family Tritonide. 
December 16.—Prof. Auuman, F'.R.S., President, in the chair. 
Messrs. H. A. Erlebach (Mill Hill), T. F. Inman (Bath), and Dr. W. A. 
Herdman (Edinburgh), were elected Fellows of the Society. 
The President announced that the meeting would be made special, for 
the election of a new Member of Council. The ballot-box was then sent 
