No. XXIX.] [Price 2s. 6rf. 



ANNALS OF NATURAL HISTORY; 



OR, 



MAGAZINE 



OF 



ZOOLOGY, BOTANY, AND GEOLOGY. 



(BEING A CONTINUATION OF THE ' MAGAZINE OF ZOOLOGY AND BOTANY,' AND 

 SIR W. J. HOOKER'S ' BOTANICAL COMPANION.') 



CONDUCTED BY 



Sir W. JARDINE, Bart.— P. J. SELBY, Esq., 



Dr. JOHNSTON, 

 DAVID DON, Esq., Prop. Bot. King's Coll. Lond., 



AND 



RICHARD TAYLOR, F.L.S. 



APRIL 1840. 



WITH A PLATE 

 Of new British and Irish Mollusca described in the communication! of 



Mr. Thompson and Mr. Forbes. 



LONDON: 



PRINTED AND PUBLISHED BY R. AND J. E. TAYLOR. 



SOLD BY S. HIGHLEY; SIMPKIN AND MARSHALL ; SHERWOOD AND CO.; 

 W. WOOD, TAVISTOCK STREET; BAILLIERE, REGENT STREET, AND 

 PARIS : LIZARS, AND MACLACHLAN AND STEWART, EDINBURGH : 

 CURRY, DUBLIN: AND ASHER, BERLIN. 



