ON MOLLUSCA. AE | 
more on the predominance of the characters drawn from the 
form of the aperture in turbinated univalve shells, and of the 
hinge in the bivalves. He was the first too, as it would 
appear, who proposed to change the terms, which in reality 
are somewhat obscene, especially when translated into any 
modern language, which were imagined by Linnieus to desig- 
nate certain parts of the bivalve shells. He has, besides, 
sufficiently augmented the number of the genera of the 
Swedish naturalist, and has constantly united a very passable 
figure of one species of each. In general, his work is very 
instructive, although he has not introduced any very new con- 
sideration into the science. 
We shall pass over in silence a tolerable number of authors, 
such as Miiller, de Born, &c. who have added scarcely any 
thing to conchology, except some new species, and proceed to 
speak of some French naturalists, who have done more for 
this art than any of their predecessors: we particularly mean 
de Bruguiéres and de Lamarck. 
Bruguiéres, in 1792, almost entirely followed Linnzus; but 
we must do him the justice to say, that he has much more 
clearly circumscribed and characterized the genera, which 
obliged him considerably to augment their number. The 
descriptions of the species, in the small number of genera 
which he was able to treat of in detail (death having cut him 
off long before he could terminate his work), are well done, 
and complete. In a word, he should be regarded as the con- 
chologist who first began to introduce into the science that 
exactitude and those details which have enabled us to employ 
it in paleozoology, or in the comparison of fossil remains. 
We must nevertheless observe, that he has introduced no new 
consideration. 
M. de Lamarck brought to still greater perfection the method 
or mode of view of Bruguiéres, his friend, not only in not con- 
fining himself to the mere consideration of the shell, and in 
