LAMARCK TBE 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 Tableau Mmen- 

 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 {^puissamment 

 second^') by Lamarck, who had even indicated the 

 most of the subdivisions established in his Tableau 

 ddmentaire for the insects (Blainville, /. 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 zoological article reserved his strength 

 and elaborated his first general zoological work, a 

 thick octavo volume of 452 pages, entitled Systime 

 des Animaux sans Vertibres, which appeared in 1801. 



Linnd 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 

 Mimoires pour servir i I'Histoire et d V Anatomic des MoUusques 

 (1817). 



