366 
Schleuse mit dem Planktonnetz gefischt. Bei Durchsicht des Fang- 
resultates wurde ein Tier beobachtet, welches sich durch RiickstoB be- 
wegte. Die Untersuchung und Bestimmung ergab, daB es sich um die 
Meduse von Microhydra ryderi Potts. handelte, welche nach Brauer, 
»Die SüBwasserfauna Deutschlands«, Heft 19, in Deutschland noch 
nicht beobachtet sein soll. Bei einige Tage später wiederholten Plank- 
tonfängen konnte die Meduse in mehreren Exemplaren gefangen werden, : 
so daß hierdurch ihr Vorkommen im Finowkanal einwandfrei festge- 
stellt ist. Einige Wochen nach dem 21. Juni, an welchem Tage das 
Tier zuerst beobachtet wurde, waren wiederholte Fangversuche er- 
gebnislos. Der zugehörige Polyp konnte nicht gefangen werden, da- 
gegen vermehrte sich die gleichzeitig gefischte Hydra oligactis Pall. 
massenhaft durch Knospung. 
II. Mitteilungen aus Museen, Instituten usw. 
Linnean Society of New South Wales. 
Abstract of Proceedings. May 31st, 1911. — Mr. D. G. Stead ex- 
hibited examples of the Blue-Eye, Pseudomugil signifer Kner, from Wamberal 
Lagoon, N.S. Wales, living in both sea-water, and pure, fresh water; and he 
communicated a Note on the remarkable adaptability of this fish to sudden 
and severe changes in its surrounding element. — Mr. H. L. White sent, 
for exhibition, a skull of the Native Bear, showing an extensive osseous 
growth commencing near the base of the skull and extending into the eye- 
cavity: and he communicated a Note on an outbreak of disease which, in his 
opinion, was responsible for the extermination of the Native Bear in the 
Upper Hunter District, about 1895. — Dr. T. Harvey Johnston exhibited 
a small series of Entozoa from N.S.Wales, comprising 1) Cysticercus tenui 
collis Rud., from the mesentery of a goat (Illawarra district); 2) Oxyuris 
ambigua Rud., from the intestine of a rabbit (Braidwood, Cowra); 3) Lingua- 
tula serrata Frol., from the nasal cavities of dogs, obtained experimentally 
by introducing the larvae (specimens of which were exhibited) of the parasite, 
found in the mesenteric glands of cattle from various parts of N.S.Wales. 
The three above-mentioned species excepting No. 1 (from West Australia) 
had not previously been recorded from these hosts in Australia. — Mr. Frog- 
gatt exhibited a specimen of a large wingless grasshopper, caught in a house 
at Tambourine, Southern Queensland. It had invaded a mouse’s nest, and, 
after frightening the mother away, was feeding upon a young one when cap- 
tured. — Mr. Fletcher, on behalf of Messrs. C. T. Musson and W. M. 
Carne, showed examples of a phyllopod Crustacean (Apus sp.) found in a 
stormwater-drain in one of the paddocks of the Hawkesbury College farm, 
during the wet weather of last February. — 1) The Bees of the Solomon Is- 
lands. By Professor T. D. A. Cockerell (communicated by Mr. W. W. 
Froggatt). — Only one species of bee (Nomada psilocera) had been re- 
corded from the Solomon Islands, up to the end of last year. Mr. Froggatt’s 
collection, obtained in 1909, comprised representatives of fifteen unde- 
