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CIRRIPEDES IN THE NORWICH MUSEUM. 
II. 
CIRRIPEDES IN THE NORWICH MCJSEUM FROM 
THE NORFOLK CHALK, STUDIED BY DARWIN. 
By Thomas H. Withers, F.G.S. 
Communicated by Mr. F. Leney. Read jist October , igu. 
W 7 hen Darwin wrote his Monograph on the Fossil Lepadidte, 1 
he drew largely for his material from the collection of the 
late Robert Fitch, F.S.A., F.G.S. (1802-1895) of Norwich. 
This unrivalled collection of Cirripedes from the Chalk of 
Norwich, the result of twenty years collecting, was presented 
by Mr. Fitch in 1894 to the Castle Museum, Norwich. Mr. 
Frank Leney enumerated some of these specimens in his 
List of the Type and Figured Specimens, 2 but owing to 
certain difficulties which will be alluded to later, many of the 
specimens described and figured by Darwin could not be 
determined satisfactorily, so the whole of the Cirripedes 
from the Fitch Collection were sent to the British Museum 
in order that I should be enabled to work through them with 
the object of determining them more definitely. 
Since Darwin left no indication on the specimens or their 
labels, as to which he described and figured, and the labels 
moreover had been displaced, the work of determination has 
been rendered somewhat difficult. In some cases the collec- 
tion in which the specimens were located is not mentioned, 
the figures have been enlarged and restored and no statement 
to that effect made, and in others the figures have been 
1. Darwin, C. R., 1851. A Monograph on the Fossil Lepadidse, or, 
Pedunculated Cirripedes of Great Britain: Palasontograpliical Society, 
London, pp. vi., 88, with 5 pis. 
2. Leney, F., 1902. “ A List of the ‘Type,’ Figured, and Described 
Fossils in the Norwich Castle Museum”: Geological Magazine, 
dec. IV., Vol. IX., pp. 166-171, 220-231. (Cirripedes, p. 226.) 
