No. IV. 
(Price Seven Shillings and Sixpence colored, and Six Shillings plain) 
MALACOSTRACA PODOPHTHALMA 
BRITANNIA; 
ok 
DESCRIPTIONS OF THE BRITISH SPECIES OF 
Crabs, lobsters, $ratotts, 
AND OF OTHER 
MALACOSTRACA WITH PEDUNCULATED EYES, 
nr 
WILLIAM ELFORD LEACH, M. D. F. L. S. & W. S. 
fellow oj the Royal College of Physicians of Edinburgh , and of the. Royal College of Surgeons , and of the Medfoo. 
ehirurgical Society of London , Sfc. 
ILLUSTRATED 
WITH COLORED FIGURES OF ALL THE SPECIES, 
by 
JAMES SOWERBY, F. L S. G. S. W. S. &c. 
Manor ary Member of the Physical Society of Gottingen ; Author of English Fungi, British Mineralogy , Exotic 
Mineralogy , Mineral Conchology , a Botanical Drawing Book , a New Elucidation of Colors ; 
Proprietor of English But any, S,c. 
lonfton: 
PRINTED BY B, MEREDITH, SILVER STREET, WOOD STREET. CHEAPSIDF. ; 
PUBLISHED BY JAMES SOWERBY, 2 , MEAD PLACE, LAMBETH. 
July I, 1815. 
