MANUAL OF CONCHOLOGY: 



A Systematic, Illustrated Monography of the Eecent 

 Species of Shells. 



By aBO. W. TRYON, JUN., 



Conservator of the Conchological Sectjom of the Academy 

 OF Natural Sciences of Philadelphia. 



The Manual of Conchology is published; by subscription, in parts (in 

 octavo form), of which four constitute a vohime. Each part embraces from i6 to 

 24 plates, with accompanying text. Each volume is complete in itself, and 

 furnished with appropriate title page, index, etc. Subscriptions can commence 

 \vith, and are revocable upon, the completion of any volume. 



*^* The edition is limited to 250 copies, of which 186 are already subscribed for. 



Plain Edition. — Per part (4 parts in a volume) ... $300 



Colored Edition. — Plates carefully colored by hand. Per part 500 



Fine Edition. — Heavy paper, plates in duplicate, colored and India 



tinted, edition strictly limited to 25 copies ... ... ... ... 8 00 



First Series. — Marine Gastropods. To be completed in eleven volumes. 



The seven completed volumes comprise 2,176 pp. text, with 530 plates, 

 containing 8,482 figures. 



Any volume sold separately. 



Vol. I. — Cephalopoda, 1879. Vol. II. — Muricidi^ and Purpuridii^, 1880. 

 Vol. III.— Tritonid^e, Fusidte, and Buccinida?, 1881. Vol. IV.— Nassidse, Mitridre. 

 Volutidie, and Turbinellidce, 1882. Vol. V. — Marginellidre, Olividiie, and Colum- 

 bellidEe, 1883. Vol. VI.— Conidi^, and Pleurotomidte, 1884. Vol. VII.— 

 Terebridffi, Cancellariidas, Strombidns, Cyproeidae, Ovulidte, Cassididje, and 

 DoliidiE, 1885. [Vol. VIII. — Naticidft), Calyptracidaj, Turritellidse, Eulimidae 

 and Pyram.idellidas, 18S6]. 

 Second Series. — Pulmonata. To be completed in ten volumes. 



Vol. I. — Testacellidre, Oleacinidse, Vitrinidse, Lnnacidte, Arionidte, etc., 364 

 pp., with 60 plates (1,696 figures), 1885. [Vol. II.-— Zonitidre, 1886]. 



Subscribers will please address : — 



George W. Tryon, Jun., 



Academy of Natural Sciences, Philadelphia, Pa.; 



or, 



TRUBNER & GO., 57, 59, Ludgate Hill, London 



F. SAVY, 77, BouL. St. Germain, Paris. 



