164 Proceedings of the Boyal Physical Society. 



— a fact wliicli renders its occurrence in England all tlie more 

 wonderful. Although it is several years since this specimen 

 was taken, and Mr Carmichael has in the interval formed a 

 considerable collection of British and foreign butterflies, he 

 assures me that by no chance could he have made any mistake 

 as to the exact specimen caught on the railway carriage. It 

 has been suggested as a possible explanation of the appearance 

 among us of this South American stranger, that it may have 

 been brought by one of the Brazilian mail packets, which 

 come to Southampton, a station on the London and South- 

 western Eailway. 



IV. Notes on a few Silurian Fossils from the Neighbourhood 

 of Girvan, Ayrshire, in the collection of Mrs Rohert 

 Gray, Edinhurgh. By Egbert Etheridge, Jun., Esq., 

 E.G.S., etc. [Plate II.] 



It affords me much pleasure to offer the following notes on 

 and descriptions of a few of the more interesting fossils in 

 the cabinet of Mrs E. Gray. The collection, gathered from 

 the rich fossiliferous deposits of Silurian age in the neighbour- 

 hood of Girvan, has been wholly brought together through 

 the energy and zeal of the lady in question. We are already 

 indebted to her hammer for several Silurian Brachiopoda new 

 to science, which have been from time to time described by 

 Mr T. Davidson, F.E.S., and a few Crustacea described by 

 Professor John Young, M.D., F.G.S., etc. 



CLASS CRUSTACEA— SUB-CLASS CIRRIPEDIA 

 Genus Turrilepas — Woodioard, 1865. 



Plumulites, Barr. Eeuss, Sitz. Berichte d. K. Akad. d. 

 Wissen, Sch. 1864, xlix., p. 215 (note 2). 



Turrilepas, H. Woodward, 1865. Quart. Jour. Geo! Soc, 

 xxi., p. 486. 



Plumidites, Barrande, 1872. Systeme Sil. Boheme, i., supp. 

 p. 565. 



Oploscolex, Salter, 1873. Cambridge Cat. Camb. Sil. Foss., 

 p. 129. 



