178 PROCEEDINGS OF THE 



number of sponges, hydrozoons, and polyzoons, cast up on the 

 shore of the Firth of Tay, near Broughty Ferry. They belonged 

 to several genera and species common to British waters, as the 

 subjoined list shows : Spongidae — Chalina oculata, HaUchondria 

 panacea; Hydrozoa — Thuiaria thuia, Plumularia falcata, Sertularia 

 ojjerculata, Sertularia Jilicula ; Polyzoa — Gemellaria loriculata, 

 Flustra truncata, Flustra foliacea, Flustra memhranacea. 



Mr John Kirsop exhibited an interesting series of specimens 

 from the Cygnet Kiver, Kangaroo Island, South Australia, 

 forwarded for exhibition by Mr George Brown of Eothesay. 

 These consisted of a series of fine large horny sponges, remarkable 

 for their shapes and for the beauty of the interwoven horny 

 texture of their skeletons ; a number of shells belonging to the 

 genera Haliotis, Cassis, Patella, ^larginella, and Fusus ; also a fine 

 mass of a large tubicolar annelide belonging to the genus Serpula. 

 There were also shewn an interesting species of Cidaris, in which 

 the large club-like spines terminated at their upper ends in hollow 

 cup-shaped cavities ; and a portion of the bony palate of a fish, 

 Myliohates, one of the Eays, in which the large crushing teeth are 

 arranged on the same plan as that seen in the genus Psammodus, 

 found in our Carboniferous limestone strata. Mr Young, who 

 made some remarks on the collection, stated that many of the 

 specimens, from their rarity, would form very interesting additions 

 to the natural history collection of any of the Glasgow museums, 

 donations of well-preserved objects being always gratefully 

 received. 



Mr James Coutts exhibited a specimen of Millerite, a sulphide 

 of nickel, which is a rare mineral, found in the form of golden- 

 coloured hair-like tufts of crystals in the cavities of shells, and in 

 fissures of the limestone at Dockra, near Beith. It was first 

 discovered at this place about three years ago, and tliere is as yet 

 no other known Scottish locality. 



PAPERS READ. 



I. — Further Notes on the Cecidompidae, with descriptions of three 

 New Species. By Mr Francis G. Binnie. 



In continuation of my former remarks on this grou}), I now 

 bring forward some new species, together with various observa- 

 tions on the economy of some known species, and on their 

 occurrence in this district. 



