424 



external opercular gills, the presence of which, he remarked, was not 

 dependent on age, as had been heretofore supposed, because they were 

 retained for a long period, if not, in some cases, throughout life. — Mr. E,. 

 E. Holding made some remarks on some interesting animals he had observed 

 during a recent visit to the Zoological Gardens at Belle Vue, Manchester. — 

 Prof. Howes exhibited, on behalf of Mr. E. W. L. Holt, a specimen of a 

 new British Fish [Argentina siliis)^ obtained 80 miles south-west of the Scilly 

 Islands. — Mr. Abbott H. Thayer, of New York, explained his method of 

 demonstrating, by actual experiments, the underlying principle of protective 

 coloration in animals, and invited the Members present, and their friends, 

 to witness an exhibition of his demonstrations which (as arranged with the 

 Secretary) would take place in the Society's Gardens next day. — Mr. G. A. 

 Boulenger, F.R.S., read a memoir on the collection of Fishes made by 

 Mr. J. E. S. Moore in Lake Tanganyika during his Expedition in 1895-1896. 

 Twenty-six new species were described, of which eight were made the types 

 of new genera. — Mr. R. I. Po cock read a paper on the Scorpions, Spiders, 

 and Solifugae collected by Mr. C. S. Betton in East Africa between Mombasa 

 and Uganda. Of the 7 species of Scorpions, 6 species of Solifugae, and 

 30 species of Spiders represented in the collection, 5 of the Solifugae and 

 12 of the Spiders were described as new, one species of the latter, viz. 

 Eucratoscelus longiceps^ being made the type of a new genus. — A communi- 

 cation was read from Mr. J. Stanley Gardiner containing an account of 

 the Fungoid Corals collected by him in the Central Pacific. Twenty-one 

 species were treated of, of which 6 were described as new. It was proposed 

 to absorb the genus Tiehoseris into Pavoiiia, and the genera Maeandroseris, 

 Coscinaraea, and Plesioceris into the genns Psammocora. — On behalf of Dr. 

 A. Dugès, Mr. G. A. Boulenger communicated the description of a new 

 genus of Ophidia, proposed to be called Geatractus^ for the reception of 

 Geophis iecpanecus,^ recently characterized by M. Dugès. — Dr. G. H. Fowler 

 presented three papers relating to the surface and midwater collections made 

 by him on H.M.S. 'Research' in the Faeroe Channel in 1896 and 1897. 

 The first of these, by Mr. I. C. Thompson, dealt with the Copepoda ; the 

 second, by Mr. E. W. L. Holt, treated of the collection of Fish-larvae, and 

 included an account of the larval ontogeny oi Scopelus glacialis] and the third, 

 by Dr. Fowler, contained a description of his new midwater net, and a 

 discussion on the general features of the midwater fauna. — P. L. Selater, 

 Secretary. 



3. Linnean Society of New South Wales. 



April 27th, 1898. — (1) Some new Genera and Species of Fishes. By 

 J. Douglas Ogilby. This paper contains diagnoses of five new genera and 

 two new species, viz., Cinetodus^ Nedystoma, a-ud Pac/igula, gg. nn., and Arms 

 Maslersi, sp. n. (Siluridae); Aethoprora ])erspicillata^ sp. n. (Myctophidae) ; 

 T/igsanop/irgs, g. n. (Platycephalidae) ; and Taeniomembras, g. n. (Atherinidae). 

 — (2) On the Affinities and Habits of Thylacoleo. By R. Broom, M.D., B.Sc. 

 The author reopens a much-debated question in the light afi'orded by the 

 interesting little fossil marsupial recently described by him under the name 

 Burramys parvus [P.L.S.N.S.W. 1895, p. 563]. This little form, which is 

 evidently the representative of a subfamily of the Phalangeridae, in most of 



