Ixxiv PROCEEDINGS OF THE 



24th November, 1885. 

 Mr. Robert Turner, Vice-President, in the Chair. 

 The following gentlemen were elected Corresponding Members, 

 viz.: Messrs. J. T. Cunningham, B.A., F.R.S.E., Scottish Marine 

 Station, Granton ; John Rattray. M.A., B.Sc, F.R.S.E., Scottish 

 Marine Station, Granton; J. R. Henderson M.B., F.L.S., Pro- 

 fessor of Biology, Christian College, Madras ; Frederick G. 

 Pearcey, Challenger Expedition Office, Edinburgh ; and James 

 M 'Andrew, New Galloway. 



The following were elected Ordinary Members, viz. : Messrs. 

 Robert S. Houston, Hope Villa, Bellahouston ; George E. 

 Mann, 3 Salisbury Quadrant, Strathbungo ; Duncan M'Laren, 1 

 Greenbank Street, Pollokshaws ; James Hamilton, 60 Wilson 

 Street ; John Tennant, 19 The Boltons, London, S.W. ; Thomas 

 F. Gilmour, M.D., 231 Paisley Road, West; Alexander M'Nair, 

 62 Bath Street ; Marshall Reid, Eel River, Ristigouche County, 

 New Brunswick ; and William Dow, 165 Hospital Street. 



Mr. A. Somerville, B.Sc, F.L.S., exhibited specimens of 

 several species of Decapod Crustacea. Among these were the 

 following : 



Galathea strigosa, L.— Sound of Mull, under stones at low 

 water. Along with this was shown, for comparison, a 

 specimen from the coast of Cornwall, kindly lent for ex- 

 hibition by Mr. James Paton, F.L.S., Curator, Kelvingrove 

 Museum, also examples of G. squainlfera, Leach, from Mull. 

 Xantho fiorida, Mont. — Specimens of this, the less common 

 of the two Scottish species of Xantho, were obtained in 

 the Sound of Mull, and at Eigg, under stones at low 

 water. There were also shown for comparison examples of 

 X. rivulosa, Risso, from Mull, and X tuherculata, Bell, 

 from the English Channel. 

 Pirhnela denticidata, Mont. — New to the West of Scotland ; 

 dredged by Mr. Somerville in Gairloch, West Ross shire, 

 on muddy sand, in about 20 fathoms water. An enlarged 

 sketch of this crab was shown, illustrating the peculiar 

 form and marginal toothing of the carapace. 

 Mr. James Steel exhibited an extensive collection of shells 

 from New Zealand, South Australia, and South Africa. In the 

 course of some remarks, Mr. Steel referred to several common 

 British species which had been introduced at the antipodes and 

 were now quite naturalized. Helix aspersa, L., for example, 

 appeared to thrive well under its new conditions, the only 

 remarkable change being the thinness of the shell as compared 

 with those of British specimens. Rev. James E. Somerville, 

 B.D., Corresponding Member, also made some remarks on this 

 subject, and stated that H. aspei'sa had also been introduced 



