Daudin is as 'Le C. Daudin' (citoyen Daudin), but it is François Marie Daudin.
Note regarding Annelida context: Although this short article is listed in Hartman's polychaeta bibliography, the new genus Vaginella is a fossil pteropod, and the short text is unrelated to Annelida, except Daudin mentions 'serpules' (was wrongly linked to Daudin's (1800) creation of the serpulid genus Spirorbis)