natural history society of glasgow. 67 



April 28th, 1863. 



Joliu Scouler, M.D., LL.D., F.L.S., President, in the clicair. 

 The following gentlemen were elected resident members: — Messrs 

 James Watson, James Rae, David Haire, William T. Wilson, 

 James Home; and, as corresponding members, Mr Ludovick 

 Charles Stewart; Colin MacKinnon, Ardlamont; Eev. James 

 Dewar, Glendaruel; and Norman A. MacLeod of Orbost, Isle of 

 Skye. 



SPECIMENS EXHIBITED. 



Mr David Eobertson exhibited specimens of Virgiilaria miraUlis, 

 which had been dredged by Mr Keddie and himself in the Gare- 

 loch — a locality previously recorded for this zoophyte. Its fre- 

 quency and small size on this station, however, may be worthy of 

 remark. A considerable numl^er were dredged, none of Avhich 

 exceeded three inches in length, while many were not over half 

 the dimensions. They were found in ten fathoms water on a mud 

 bank, a habitat which, on the same occasion, jielded them 

 Cucumaria pentades in great abundance. 



Dr Scouler exhibited a specimen of a rare crustacean, j^ga 

 tridentata of Leach, from Lochfine; also a number of specimens of 

 the unctuous sucker (Lijxiris vulgaris), from the same locality, 

 where it has recently been found in extreme abundance in rock 

 pools, and mentioned that his attention had been drawn to this 

 unusual circumstance by James Hamilton, Esq., a member of the 

 society, resident on the banks of Lochfine. 



Mr James Thomson exhibited a series of the genus Lingula, 

 from the coal fields of the West of Scotland, embracing the fol- 

 lowing species: — Lingula mijtiloides, Sow.; L. squamiformis, Phd.; 

 L. Scoticus, Davidson; L. margiiiata; and Lingula Thomsonii, the 

 last being a species new to science, and named by Mr Davidson 

 in honour of Mr Thomson, who discovered it near Campbeltown. 

 Tliis locality, in which Mr Thomson has been prosecuting liis 

 researches, has furnished two species — Thomsonii and marginata; 

 the others which were exhibited having been found in the coal 

 fields of Dairy, Carluke, East Kilbride, Bishopbriggs, Castlecarry, 

 Beith, etc. A slab of shale from Dairy was also exhibited, 

 showing a number of L. Mijtiloides, embedded. The shells were in 

 an erect position, instead of Ijing horizontally compressed; and, 

 although of delicate structure, were seen to be in a beautiful state 



