THE 
CLASSES 
ANNELIDA, CRUSTACEA, 
AND 
ARACHNIDA, 
ARRANGED BY THE 
BARON CUVIER, 
WITH 
SUPPLEMENTARY ADDITIONS TO EACH ORDER 
BY 
EDWARD GRIFFITH, F.L.S., A.S., $c. 
AND 
EDWARD PIDGEON, Esq. 
LONDON : 
PRINTED FOR WHITTAKER TREACHER, AND CO. 
AVE-MARIA-LANE. 
M DC CC XXXII r. 
