I just sent a proposal to Mr. Chesser at AOU:
Technical corrections to authority citation of genus Tadorna:
An earlier work of Boie Tagebuch etc. is the actual original source of the genus Tadorna instead of Isis Von Oken 1822 also Boie.
Tagebuch gehalten auf einer Reise durch Norwegen im Jahre 1817
By Friedrich Boie is dated before May 1, 1822; since F. Boie mentions his Tagebuch book in the Isis article.
https://books.google.com/books?id=Vj...adorna&f=false .
On column 560 of the Isis Von Oken Jahrgang 1822 in Boie’s article in heft five just four columns before the AOU cite is a citation to the Tagebuch book. Boie, 1822, Isis von Oken, col. 564. is in heft five which means May 1822.
http://www.biodiversitylibrary.org/i...e/290/mode/1up .
If you use Isis Von Oken Boie lists two species of Tadorna T. familiaris and rutila (not A. tadorna) so no tautonymy. The Norwegian book only uses T. familiaris as a species and specifically mentions it equals Anas tadorna Lin. So tautology and monotypy. “Also if you give precedence to Isis Von Oken over the Tagebuch, Tadorna familiaris Boie was a nomen nudum at the time of introduction of the genus, thus is not eligible as a type species, and Anas rutila Pallas is the type by original monotypy.” (L. Raty on Bird Forum) Pages for all this is listed as 140 and 351 because 351 is where familiaris is revealed to be A. tadorna.
In the current Auk :
Genus TADORNA Boie
Tadorna Boie, 1822, Isis von Oken, col. 564. Type, by
tautonymy, Anas tadorna Linnaeus.
This is incorrect.
History in the Check-list of North American Birds.
In the first and second AOU check-list (1886 & 1895) there is no Tadorna.
In the third check-list (1910) is Ruddy Sheldrake but in genus Casarca Bonaparte Geog. & Comp. List, 1838, 56. Type, by monotypy, Anas rutila Pallas = Anas ferruginea Pallas. In the Fourth check-list (1931) Casarca is still there for Ruddy Sheldrake but also genus Tadorna for Shel-duck Tadorna tadorna . “Tadorna Fleming Philos. Zool II 1822 260 Type by monotypy Anas tadorna Linn.” Same listing in the Fifth edition of the check-list.
In 1979 Johnsgard had it Tadorna Boie, 1822 (before May), Tagebuch Reise Norwegen, pp. 140, 351. Type, by tautonymy, Tadorna familiaris Boie = Anas tadorna Linnaeus. (Order Anseriformes: from Check-List of Birds of the World) This is correct.
Literature cited:
1. Tagebuch gehalten auf einer Reise durch Norwegen im Jahre 1817, Friedrich Boie, 1822.
2. Isis Von Oken Jahrgang 1822, erstes heft I-VI.
3. Order Anseriformes: from Check-List of Birds of the World, Johnsgard, 1979.
4. Birdforum Taxonomy and Nomenclature Forum. (www. Birdforum.net)
Mark Brown
July 17, 2017.
Eunetta next!