XXX 



THE following corrections of some of Lamarck's gramma- 

 tical errors have kindly been forwarded to the Editor, by a 

 classical Friend, though unfortunately not in time to appear 

 in their proper places. They are nevertheless, too import- 

 ant to be omitted, and the Editor here begs leave to ac- 

 knowledge their reception with many thanks. There are 

 doubtless others, which should be corrected, but the difficulty 

 of doing so is very great, as it requires an experienced Con- 

 chologist as well as an accomplished Scholar, to trace the 

 etymology of many of the Generic names of Shells, and the 

 few persons in whom that combination of talent exists, have 

 not hitherto condescended to elucidate this subject for the 

 benefit of others less highly instructed. 



q . I Being of the masculine gender, their 



rp ( ? species should have the masculine ter- 



xj . # I minations, as Triton variegatus, &c. 



Teredo Is feminine, as Teredo palmulata. 



Amphidesma. 

 Anostoma • • « 

 Cyclostoma ■ 



Diceras 



Orthoceras • • 

 Pleurotoma • 

 Pyrgoma • • • 



Are neuter, as Pleurotoma imperiale, &c. 



In the first part of this Epitome the orthography of La- 

 marck's name will be found to differ, from its having been 

 variously written by different authors : viz. de la Marck, 

 La Marck, and Lamarck; the latter of which is; however, 

 presumed to be the correct way of writing it. 



