43 



diocri pervio; aperturd sulhorizontali. transverse ovali; peri- 

 siomate subsimplice, rcflexo, marginihus junctis. 

 Diam, 30, alt. 12 mill. 



iSldfhas''becn often mistaken for H. LasalUi, Eydoux and 

 is in many colLtions under that name ; but H. Lasalln is not tins 

 species. It is quitc congruent witli //. merelrui, bow. 



April 28, 184G. 

 No businese was transacted. 



May 12, 1846. 

 Richard C. Griffith, Esq., in the Chair. 



Mr H E. Strickland exhibited a species of Corvus, discovcrcd by 

 Capt H M. Drummond, 42nd R. H., ^vhich the latter gentleman 

 prloses to name Corvus coUaris. In size and form it is closely 

 Sd to the Common Jackda^v, Corvus monedula, but d:ffers m the 

 muc ighter silvery grey of the eheeks, oceiput and nape. whjch 

 msses into a well-maiked patch of pure ^vhite on each side of tire 

 neck The black on the crown is of less extent than m Corvus mo- 

 nedula, and the lower parts are of a slaty grey. 



St. Drummond statės that in Maeedonia and Thessaly this bird 

 takes tlic place of C. monedula, which is common m he south of 

 Greece, and does not therc differ from the Jackdaw ot Bntain. 



May 2G, 1846. 

 No business was transacted. 



