A
MONOGRAPH
OF THE
BRITISH
NUDIBBANCHIATE MOLLUSCA
BY
J O S H U A A L D E R
AND
A L B A N Y H A N C O C K , F . L . S .
WITH A SUPPLEMENT BY
SIR CHARLES ELIOT, M.A., D.C.L., LL.D., K.O.M.G., C.B.
VOLUME II
LONDON :
PRINTED FOR THE RAY SOCIETY
1845—1910
