GLASGOW SOCIETY OF FIELD NATUEALISTS. 69 



EXCURSION. 



Dunoon (dredging). — Mr. John Harvie gave an account of this 

 excursion, which was a very successful one, a number of very- 

 interesting marine animals (chiefly Mollusca and Crustacea) being 

 taken. Many of these were exhibited at the present meeting. 

 Among the Mollusca may be mentioned Fusus propinquus and 

 Lima Mans. Several examples of the latter very beautiful species 

 were taken — all inside the tubular conglomeration of marine debris 

 bound together by byssal threads which zoologists term its nest. 

 This habitation is probably intended as a protection from the 

 rapacity of its carnivorous neighbours because it is unable to with- 

 draw itself completely into its shell, which itself is not very strong, 

 and the magnificent carmine tint of the tentacular fringes of the 

 mantle must make it very conspicuous. 



PAPER READ, 



By Mr. John Harvie, entitled "Observations on the Nudi- 

 branchiata." He gave some very interesting facts with regard to 

 the habits and food of this class, and a summary (with a list of 

 species) of what he had done in the investigation of the Clyde 

 fauna. 



Mr. Alexander Watt gave a list of the more noteworthy plants 

 observed by him onBenYoirlich during a recent visit; they were as 

 follows : — Thalictrum alpinum, Silene acaulis, Alchemilla alpina, 

 JSpilobmm alpinum, Sedum Rhndiola, Saxifraga stellaris, aizoides, 

 oppositifolia, and hypnoides, Gochlearia officinalis, var. alpina, 

 Gnaphalium supinum, Carduus hetetvphyllus, Armeria maritima. 

 Polygonum viviparum, Oxyria reniformis, Salix herhacea, Juncus 

 triglumis, Scirpus ccespitosus var. viviparus, and Carex rigida. 



Mr. Kichard M'Kay gave a sketch of the botany of Ben 

 Cruachan from recent observations. The following is a list of 

 the more interesting plants noticed : — Thalictrum alpinum, Alche- 

 milla alpina, Sedum Rhodiola, Saxifraga stellaris and aizoides, 

 Gnaphalium supinum, Carduus heterophyllns, Oxyria reniformis, 

 Juncus triglumis, Scirpus ccespitosus, Sibbaldia procumbens, and 

 Polypodium alpestre. He remarked that the mountain did not 

 seem one likely to produce many rarities. 



