and almost free from convolutions, resembling in this respect the 

 brain of Cheiroptera, to which order the Lemurs present several 

 points of affinity. 



April 27, 1852. 



W. J. Broderip, Esq., F.R.S., Vice-President, in the Chair. 



Mr. Strickland read a paper " On some Bones of Birds aUied to 

 the Dodo, in the collection of the Society ;" which will appear in the 

 Society's Transactions. 



May 25, 1852. 



J. Gould, Esq., F.R.S., Vice-President, in the Chair. 



The following papers were read : — 



1. Descriptions of a few new recent species of Brachio- 

 PODA. By Th. Davidson, F.G.S., Member of the Geol. 

 Soc. OF France, etc. 



(MoUusca, PI. XIV.) 



In the valuable collection of recent Brachiopoda assembled by Mr. 

 Cuming, some species seem new, and undescribed in Mr. Sowerby's 

 Monograph ; and it is at that gentleman's request that I have pre- 

 pared the following descriptions and illustrations, which will com- 

 plete, with one exception, the Ter. septigera of Loven (still tmfigured), 

 all the new recent forms which have hitherto come under my obser- 

 vation. 



In a paper lately published in the ' Annals and Mag. of Nat. Hist.' 

 for May 1852, I endeavoured to class all the recent species according 

 to their internal organization, mio four families and thirteen genera, 

 or sections, as it is evident that these, as well as the fossil forms, nmst 

 be comprised in the proposed subdivisions mtroduced within the last 

 few years with more or less success into the nomenclature ; and sin- 

 gular enough, notwithstanding the greater facihties of examining both 

 the internal arrangements as well as the animal in recent forms, these 

 important characters have not yet been made use of by malacologists, 

 who still place nearly all these Terebratidiform shells in one genus, 

 Terebratula ; while palaeontologists, workmg mider much greater 

 difficulties, have by dint of perseverance and trouble discovered the 



