87 



of the Hon. William Macleay and the Australian Museum. Twenty- eight 

 species are enumerated; the eight new species being divided amongst the 

 genera Leperina (3) and Ancyrona (5) . Besides a list showing the geographi- 

 cal distribution of the species and various synonymical remarks, the paper 

 also contains a summary of the characters of the genera, into which Herr 

 Reitter has divided the Peltinae. — 2) Notes from the Australian Museum. 



— A new Butterfly of the family Lycaenidee, from the Blue Mountains. By 

 A. Sidney Ollif f , F.E.S., Assistant Zoologist, Australian Museum. This 

 fine species, for which the name Chrysopfianus cyprotus is proposed, was re- 

 cently captured by Mr. OUifi", in the neighbourhood of Katoomba. — 3) On 

 a remarkable Fish, from Lord Howe Island. By William Macleay, F.L.S., 

 etc. Under the name of Ctenodax Wilkinsoni, Mr. Macleay described a fish • 

 picked up on the beach at Lord Howe Island, and made some remarks on 

 its probable affinities. He considers it not referable to any known family. 



— 4) Botanical. — 5) The Australian Freshwater Rhizopods. Part I. By 

 R. von Lendenfeld, Ph.D. This paper is the first of an intended series 

 in which the Australian Protozoa belonging to the groups Rhizopoda and 

 Heliozoa are to be registered, and the new species described. In this paper 

 6 species are mentioned, 2 are new. It is a most remarkable fact that the 

 common and well-known European forms are all apparently found in equal 

 abundance in Australian waters. The new species are very similar to Euro- 

 pean ones and do not present any marked peculiarities. It does not appear 

 likely that there were no Rhizopods in Australian Creeks before the advent 

 of Europeans, and so it cannot be assumed that all these Australian species 

 have been imported. As they cannot travel over the oceans dividing Austra- 

 lia from other Continents, it must be assumed that they are unchanged des- 

 cendants of the Rhizopods of that geological period, in which Australia was 

 not isolated. The absence of forms peculiar to Australia speaks strongly 

 against any recent spontaneous generation. — 6) Botanical. — 7) Onchi- 

 dium Chameleon, sp. nov., and the structure of the dorsal skin of this and 

 other Onchidia. By R. von Lendenfeld Ph.D., and John Brazier, 

 C.M.Z.S. In this paper the new species 0. CJiameleon is described by Mr. 

 Brazier. Dr. von Lendenfeld has examined this and Sempers Onckidium 

 Dâmelii, both from Port Jackson, by means of section series. The specimens 

 were hardened with osmic acid and stained with Haematoxylin. The prin- 

 cipal results of this investigation are given in eleven paragraphs, as a preli- 

 minary report in this paper. Onckidium CJiameleon has no dorsal eyes. 

 Onchidium Dämelii has eyes with an Epithelial Retina. The eyes of this 

 species multiply in each Papilla by fission. The lens is monocellular, and 

 possesses a circular adapting muscle. There is no corpus vitreum. The Re- 

 tina is more complicated than as Semper, who only had spirit specimens, 

 describes it. Four layers can be distinguished in it (1) Fibres of the Nervus 

 Opticus interspersed with ganglia cells; (2) cylindrical cells with a plano- 

 concave lens in each; (3) a layer of ganglia cells; (4) regular hexagonal 

 cells, sunk into the pigment below which extends some distance up the walls 

 of these cells. In each of the concave depressions thus formed there is a 

 conic short rod (Stäbchen or Zapfen) attached by its broad base to the pig- 

 ment layer and continued upward into a slender nervous thread, extending 

 through the middle of the cell to the central (3) ganglia cell. This species 

 seems to be far-sighted, not retracting the feelers or Papillae at the approach 



