196 NOTES AND EXHIBITS, 



NOTES AND EXHIBITS. 



Dr. Ramsay exhibited living specimens of the following snakes 

 from Louth, N.S.W. : — Aspidiotes Eamsayi, Macl., Dendrophis sp. 

 (a beautiful snake with scarlet markings on the back), and a 

 possibly new species of Hoplocephalus. 



Mr. Steel exhibited a number of specimens of a pond-snail 

 {Physa gibbosa, Gld.) abundant just now in an iron tank supplied 

 with city water on the roof of the Pyrmont Refinery. 



Mr. Haviland exhibited a sample of maize from Camden, com- 

 pletely destroyed by the micro-fungus Ustilago carbo. 



Mr. Ogilby shewed a specimen of Solenognathus spinosissimus, 

 presented to the Australian Museum by Mr. Dunlop, of Bondi ; 

 and one of Macquaria Australasica referred to in the paper by 

 Dr. Ramsay and himself. 



Mr. Maiden exhibited specimens of 35 of the rarer species and 

 varieties of indigenous plants of such natural orders as are 

 contained in Vol. I. of the ' Australian Flora.' 



The following note was read on behalf of Mr. John Mitchell of 

 Bowning. " In Nicholson's ' Manual of Palaeontology ' it is stated 

 that trilobites of the genus Acidaspis have the eyes smooth and 

 the facial suture continuous. Some of the species occurring in 

 the Bowning series do not conform to this rule, for two species 

 have the eyes distinctly facetted and the facial suture apparently 

 discontinuous. In each of the cases in which the eyes are facetted, 

 these organs are circular and highly convex (conoid)." 



Mr. Macleay exhibited specimens of Ho2:)loce2)halus m'gi-escens, 

 Gunth., and Uoplocephalvs collaris, Macleay, from Mount Wilson; 

 also specimens of the same snakes from elsewhere, showing the 

 great dissimilarity of colouring in the same species from different 

 localities. The range of H. nigrescens he believed to be very wide, 

 but the present was only the second specimen of H. collaris which 

 he had seen ; the first, described by him some months ago in the 

 Proceedings of this Society, having been taken in the neighbour- 

 hood of Bega. 



