342 JOURNAL OF SCIENCE, 
Cyclops equoreus, Fisher. Tomahawk Lagoon, near Dunedin. 
Mevope hamata, n. gen. and sp.—Allied to Cletodes. Dunedin 
Harbour, 
Laophonte austvalasica, n.sp.— Dunedin Harbour. 
Dactylopus tisbocdes, Claus.—Dunedin Harbour. 
Thalestris forficula, Claus,—Dunedin Harbour. 
Zaus contvactus, n.sp.—Dunedin Harbour. 
Porcellidium interruptum, n.sp.—Dunedin Harbour. 
Artotrogus boecku, Brady.—Dunedin Harbour. 
Artotrogus ovatus, n.sp.—On kelp in Paterson’s Inlet. 
3. ‘©On the Gravid uterus ot Mustelus antarcticus,” by Prof. T. J. 
Parker (Hon. Sec.)—The uterus of this viviparous shark is divided 
by reduplications of its lining membrane into separate compart- 
ments, in each of which a foetus is contained, floating freely in a 
fluid which fills the chamber. The wall of each chamber is double; 
its outer layer (common to adjacent chambers) is vascular, and 
the author proposes to call it the pseudochorion, since it forms a vas- 
cular investment to the foetus, like a true chorion, but is a mater- 
nal and not a foetal structure; the inner layer is non-vascular, 
forms a perfectly closed sac for each foetus, and may be called the 
pseud-amnion. The fluid surrounding the fcetus (pseud-ammotic fluid) 
is colourless and slightly opalescent ; it contains no appreciable 
trace of proteids, but a considerable proportion of urea and prob- 
ably some uric acid. There can be no doubt that both pseudo- 
chorionic and pseudo-amniotic membranes are thrown off at birth, 
and therefore form a true decidua. It seems probabie that the in- 
vestment of each foetus is formed in much the same way as the 
decidua veflexa of man, ‘The walls of the uterus are remarkably thin 
and transparent. Probably birth is brought about by the activity 
not of the parent but of the foetus. 
The President gave an account of the ovary of a trout in which 
the usual discharge of eggs at the spawning season had not taken 
place. 
Professor Parker exhibited the disarticulated skeleton of a 
turtle, and an injected preparation of the heart and gills of a skate, 
both recent additions to the Museum. 
ROYAL SOCIETY OF NEW SOUTH WALES. 
Sydney, 4th October, 1882.—C. Rolleston, Esq., C.M.G., Pre- 
sident, in the chair. 
New member—Sir Edward Strickland, K.C.B., F.R.G.S. 
Papers—(1) ‘‘Some Marine Carboniferous Fossils,” and 
2) ‘*Some Mesozoic Fossils trom the Palmer River, ban SCHey 
land,” both by the Rev. J E. Tenison-Woods. 
(3) On the French ros eaLiae Societies and the Colonies,” 
by Mr. E. Marin La Meslee. 
Sydney, 1st November, 1882,—C. Rolleston, Esq., C.M.G. 
President, in the chair. 
Papers—(1) ‘‘ Notes on the aborigines of New Holland,” by 
Mr. James Manning. These notes had been collected in 1844 and 
1845, and the information contained in them had been subsequently 
corroborated by the experiences and research of others than the 
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