50 PROCEEDINGS OF THE 



by no means common in Scottish seas, a few localities only being 

 known for it. This specimen afforded an illustration of that 

 cuiious reproductive power, spoken of by Mr Gosse, in the forma- 

 tion of a new disk, mouth, and tentacles at the lower end of the 

 corallum, which had been broken at the base. Mr Robertson also 

 exhibited a new sessile-eyed crustacean, discovered by himself at 

 Cumbrae — Stegoccplialus celticus. This communication acquired a 

 double interest from the fact of the genus being new to Britain, 

 and the species new to science, affording another proof of Mr 

 Eobertson's diligence and excellent powers of discrimination. He 

 likewise brought forward a specimen of Cypridina tetrs, from the 

 same locality, where it is not uncommon, and which he had 

 recognised as a distinct species about four years ago. It remained, 

 however, undescribed until 1861, when the Rev. A. M. Norman 

 published an account of it in the " Annals of Natural History," 

 from a specimen dredged at Oban. 



Mr James Thomson exhibited a series of carboniferous Brachio- 

 pods, including Streptnrhynchus crenistria, with all the varieties 

 of that shell yet found in the carboniferous beds of Scotland, 

 including racUalis, Kellii, senilis, and rohusta — the latter, which was 

 found in the neighbourhood of Campbeltown, being new to this 

 country. 



The Secretary exhibited two specimens of the rotche or little 

 auk; one from the collection of Mr J. B. Murdoch, the other 

 forwarded by Mr John Nelson, from East Lothian, with remarks 

 on the Alcadce frequenting the shores of that county during winter; 

 from which it would aj^pear that the puffin (Mormon fratercula) is 

 found at all seasons, the place of those which migrate southwards 

 in autumn being supplied by flights of both young and old birds 

 from higher latitudes. Mr Gray stated that he had observed 

 puffins regularly frequenting the Firth of Forth during Avinter, in 

 company with guillemots and razor-bills, for many successive 

 seasons, and further remarked that these winter flocks never 

 extended their flight beyond Berwickshire — a circumstance which 

 may partly account for such an interesting fact in the migrations 

 of this species being overlooked by Selby, Yarrell, and subsequent 

 writers. Every year, throughout the Avinter months, the coast 

 near Dunbar is frequented by the little auk, the puffin, guillemot, 

 and razor-bill, specimens of which were procured during the 

 present month by Mr Nelson to illustrate his remarks. The 



