NOTES AND EXHIBITS. 173 



Mr, W. S. Dun exhibited two fossils shells from the Narrabeen 

 Beds, near Newport, One, collected by Mr. W. Willcox, belongs 

 to one of the extreme genera of the fossil Unioniclce, occurring in 

 the newer Palfeozoic and older Mesozoic Rocks. The left valve 

 only is preserved, and is somewhat distoi'ted. It is 13 mm. long 

 and 8 broad. The beak is subterminal, shell thin, concentric 

 lines of growth very apparent, hinge-line long and straight. The 

 umbo does not project much. From the Anthracornyce it differs 

 mainly in point of size, and approaches in outline some of the 

 species with subcentral beaks. The general similitude to Naiadites, 

 Dawson, is much stronger, as is shown by comparison with some 

 of the figures given by Dr. Wheelton Hind (Mon. Carhonicola, 

 Anthracomya, and Naiadites, Pt. 2, 1895, t. 17, fF. 35-38 — N. 

 triangularis — and t. 18, f. 34 — N. elongata). It is impossible, 

 in the absence of the hinge structure, to say definitely to which 

 genus this form belongs. The other specimen is very indistinct 

 and much crushed — 20 mm. long, 9 broad. Beak central, shell 

 apparently thin, with strong concentric ridging. This form was 

 found by Mr. W. Martin, and is most probably a Unio. 



Mr. Palmer exhibited branches of an Ulnus from his garden 

 at Lawson, which had been ring-barked and killed by the larvaj of 

 a longicorn (probably a species of Monohammus). Also an unde- 

 termined fungus growing abundantly round the roots of Eucalypts, 

 which is eaten with avidity by cows. 



Mr. Baker exhibited herbarium specimens, as well as samples 

 of timber and oil, of the Eucalypts described in his paper. 



