THE JOURNAL OF MALACOLOGY. 



Esiablislud in iSgo as " The Coinlioloi^ist, a Joiinial of Malacology." 



No. 1. 



APRIL 7, 1905. 



VOL. XII. 



Page. 



Contents. 



Descriptions of some new species of Marine Shells from 

 Ceylon. By H. B. Pkeston, F.Z.S. 



Descriptions of two new species of Diploinnuitiiia from 

 Ceylon. By H. B. Pkeston, P\Z.S. 



Descriptions of nine new species of Helicoid Land 

 Shells. By G. K. Gude, F.Z.S. 



Note on a veriety of Hydrobin jciikensi, E. A. Smith. 



By H. Overton. 



Names of Ammonites. By T. D. A. Cockerell. 



Current Literature. 



- jj: j :> — '- •^Tr>*r>.°- .^^.-.^ 



11, u 1 iUiSi\T7icb . 



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 i6 

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WATSON'S MiCROSCGPES FOR 3ACTERI0L0GY & HiSTOLOCY. 



H EDINBURGH STUDENTS' 

 MICROSCOPE, as ligured, having 

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Ditto, completely fitted with two Eye- 

 pieces, I in. and i/6 in. Object- 

 ives, Abbe Illr., with Iris Diaph- 

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FOR BACTERIOLOGY:— 



i/i2 in. Oil Imnm. Objective ... 



£ ^. d. 

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This Microscope may be had on a horse«shoe 

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In no Microscope, and at so low a price, are so many conveniences and 

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Students' requisites. Slips, Cover Glasses, Dissecting Instruments at special prices, ask 

 for Students' price list. 



HiEMACYTOMETERS, PAKES COVER GLASS CLIP. 



HiEM AGLOBINOMETERS for Blood Examination. Bacteriological Outfits. 



Full particulars of all the foregoing are contained in Watson's Catalogue of Microscopes, 



post free on application. 



MICROSCOPIC OBJECTS.— Typical Histological and Pathological Preparations. Sets illustrating 



Public Health, Bacteria, Urinary, Entozoaand other Subjects. Catalogue of above (No. 3) 



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-Vir. 'VStA.I^SQVt St SO^YS, Opticians to H.M. Government. 



Established 1337. 



2, EASY ROW, BIRMINGHAM, and 313, High Holborn. London, W.C. 



Please mention fhif Journal fhen replyimj to Adveftuetnents. 



