NOTES AND EXHIBITS. 337 



Also, for Mr. Norton, an internal cast, in sandstone, of a new 

 Crinoid, probably from the carboniferous formation in the neigh- 

 bourhood of the Shoalhaven. Mr. Etheridge stated that a single 

 specimen of the same fossil, otherwise unique, has been obtained 

 by Mr. Barnes while collecting for the Australian Museum, in the 

 locality indicated. 



Mr. Douglas-Ogilby exhibited a snake from the South Solitary 

 Island, which he had shown previously to Mr. Macleay, with 

 whom he agrees that it is the representative of a new genus. It 

 is closely allied to Pseudechis, but differs from it in having a single 

 nasal shield, a point which seems to be considered of great im- 

 portance. 



Mr. North exhibited skins of Alcyone pulchra, Gould, together 

 with the nest and eggs described in his paper. 



The President read the following notes, and exhibited specimens 

 of the Plants therein referred to, on behalf of Dr. Woolls: — 



I. Jussicea repens (Linn.) 

 Baron Mueller has recently been engaged in investigating the 

 Australian species of Jussicea, and has come to the conclusion 

 that our J. repens (Linn.), is not identical with the Indian species. 

 He inclines rather to x'efer it to J. diffusa (Forskael), and as such 

 he proposes to call it in his forthcoming " Key to the Dichotomous 

 System," In our plant (at all events that growing near Sydney or 

 the Hawkesbury), the petals of the flowers are yellow and entire, 

 whilst the roots seem to be destitute of the natatory organs which 

 mark the Indian plant. In Mr. Bentham's description, it is 

 described as creeping in mud or floating in water, '■'■often sustaining 

 itself hy tJte vesicles round the insertion of tlie leaves ;" but it 

 demands further investigation to ascertain whether this refers to 

 the Australian or the Indian plant. In order to settle the matter, 

 the Baron is sending specimens of our plant to Dr. Schwainfurth, 

 now engaged in scientific pui'suits at Cairo, to be compaied with 

 the plant growing in the Nile, which was collected there in 

 17G3, and thus to deteriiiine whether our Jassima repens is to be 

 22 



