LAMARCK THE ZOOLOGIST 187 
gave some account of the genera of cuttlefishes. His 
first general memoir was a prodromus of a new classi- 
fication of shells (1799). 
Meanwhile Lamarck’s knowledge of shells and cor- 
als was utilized by Cuvier in his Zableau ¢élémen- 
taire, published in 1798, who acknowledges in the 
preface that in the exposition of the genera of shells 
he has been powerfully seconded, while he indicated 
to him (Cuvier) a part-of the subgenera of corals and 
alcyonarians, and adds, “ I have received great aid from 
the examination of his collection.’ Also he acknowl- 
edges that he had been greatly aided ( puzssamment 
secondé) by Lamarck, who had even indicated the 
most of the subdivisions established in his 7ad/eau 
élémentaire for the insects (Blainville, 7. c., p. 129), 
and he also accepted his genera of cuttlefishes. 
After this Lamarck judiciously refrained from pub- 
lishing descriptions of new species, and other fragmen- 
tary labors, and for some ten years from the date of pub- 
lication of his first zodlogical article reserved hisstrength 
and elaborated his first general zodlogical work, a 
thick octavo volume of 452 pages, entitled Systime 
des Animaux sans Vertebres, which appeared in 1801. 
Linné had divided all the animals below the verte- 
brates into two classes only, the Insecta and Ver- 
mes, the insects comprising the present classes of 
insects, Myriapoda, Arachnida, and Crustacea; the 
Vermes embracing all the other invertebrate animals, 
from the molluscs to the monads. 
1792). These errors, as regards the limpet, were afterwards corrected 
by Cuvier (though he does not refer to his original papers) in his 
Mémoires pour servir & l’ Histoire et a Anatomie des Mollusques 
(1817). 
