5927 
Einwände gegen die Geddes-Brandt’sche Hypothese, von der phy- 
siologischen Bedeutung der Symbiose zwischen Algen und Thieren, 
halte ich auch heute noch in vollem Umfange aufrecht. 
II. Mittheilungen aus Museen, Instituten etc. 
1. Linnean Society of New South Wales. 
25th June, 1884. — 1. Botanical. — 2. On the new Australian 
Fishes in the Queensland Museum. Part II. By Charles W. De Vis, M.A. 
Sixteen species are here described, viz: — Seven of the Family Squami- 
pinnes, two of the Mullidae, one of the Sparidae, four of Scorpaenidae, and 
two of the Teuthididae. — 3. On a Marine Species of Philongria. By Char- 
les Chilton, M.A. The Isopod described in this Paper was obtained at 
Coogee Bay last December. The specific name ,marina‘ is given to it, 
as it isthe only marine species of the genus known to the author. — 4. The 
Australian Hydromedusae continued. Part IV., by R. von Lendenfeld, 
Ph. D. In this Paper the numerous Australian species of Graptolithes, de- 
scribed by Professor McCoy, of Plumularidae described by Allman, 
Bale, Kirchenpauer and Busk, and of the Dicorynidae, are sifted and 
catalogued with references, and a large number of new and interesting spe- 
cies, and one new genus discovered by the author are described and figured. 
The Australian Plumularidae exceed in the number of species the Plumula- 
ridae of all the rest of the world put together. — 5. On the Flesh spicules 
of certain Sponges. By R. von Lendenfeld, Ph.D. In a former Paper 
the author expressed his opinion, that ‚Flesh-spicules‘ in Sponges, do not, 
as it was hitherto supposed, only occur in such species as possess a fibrous 
siliceous skeleton, but that they may make their appearance in any species, 
so that their existence cannot be considered of sufficient import, to allow of 
a separate family being formed, comprising such Sponges only which possess 
Flesh-spicules. The author had based this hypothesis partly on general con- 
clusions and partly on the observation of a true Horn-sponge, a Hircinia, 
with Flesh-spicules. Now: the author is enabled to prove his hypothesis by 
further discoveries, which he made during the investigation of the numerous 
and valuable Sponges of Port Jackson. He found, namely, three species 
possessing , Flesh-spicules‘, which according to the structure of their fibrous 
skeleton, should be placed in the Families of the Horn-sponges. 6. Note 
on the slimy coating of certain Boltenias in Port Jackson. By R. von 
Lendenfeld, Ph.D. Some solitary Ascidians, similar to the ordinary 
Boltenia australis which grows close to low tide mark, but which are found 
in deep water exclusively, are covered with a very slippery slime, an occur- 
rence, without precedence, in Ascidians. This slime was investigated by the 
author, and found to consist of a thick layer of ova in their Follicula-cap- 
sules. The slime is supposed to be formed by the cylindrical cells of the 
Folliculae. — 7. Report on the Australian Echinodermata, exhibited at the 
Fisheries Exhibition, London. By F. Jeffrey Bell, M.A., etc. This paper 
was communicated and read by E. P. Ramsay, F.L.S., etc. It contains a 
list of all the named species in the collection sent to London, viz, 10 species 
of the class Crinotdea; 12 of the Asteroidea, 19 of the Ophiurioidea, and 30 
