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Chauna torquata (1 Viewer)

mb1848

Well-known member
Can anyone explain why Chauna torquata is being used? It is in Zoonomen and IOC.
Chauna torquata (Oken) 1816 LehrbuchNaturgesch. pt3 sec.2 p.639.
But Opinion 417 from 1956 makes Oken Lehrbuch 1816 V. III Zoology names unavailable.
http://www.biodiversitylibrary.org/page/34677656#page/61/mode/1up .
I saw elsewhere The species generally known as Chauna cristata Swainson requires another name since Palamedea cristata Swainson is preoccupied by Palamedea cristata Linn. The species should stand as Chauna torquata Oken as this name is long anterior to that proposed by Swainson. Chaja torquata Oken Lerhbuch der naturgesch., III Zool. Abth 1816 page 639.
http://reader.digitale-sammlungen.de/de/fs1/object/display/bsb10076217_00665.html .
 
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The third volume of Okens Lehrbuch is, indeed, on the Official Index ("rejected for nomenclatural purposes because the author did not apply the principles of binominal nomenclature"; Op.417), hence (in principle) no name from this work should be used unless it is conserved by the Commission under the plenary power. This doesn't seem to be case currently for Chaja torquata...

The following names from Okens Lehrbuch have been conserved up to now:

(The main forum would be a better place for this thread.)
 
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Based on the synonymy in Hellmayr & Conover 1948:

- Chaja torquata Oken 1816 is the earliest name, but does not seem to have been used again in the 19th C.
- Palamedia cristata Swainson 1837 comes next. "Palamedia Linn.", in Swainson 1837, is an incorrect subsequent spelling of Palamedea Linn. 1766: Palamedia cristata Swainson is a primary homonym of Palamedea cristata Linn. 1766, hence permanently invalid. Yet it was apparently used universally until the early 20th C.
- "Chauna torquata (Oken)" was then suggested to be used by Richmond 1908 (footnote).
- Chauna salvadorii Brabourne & Chubb 1912 was soon after proposed as a new replacement name for Palamedia cristata Swainson nec Linn.

If Oken 1816 is not binominal, could Chauna torquata be deemed available from Richmond 1908? Although Richmond did not describe the bird, he did give a reference to Oken's work, where a description can be found -- albeit the reference was in fact more closely associated to the generic name Chaja, than to the specific name itself...
 
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Thanks Laurent. Yes the Richmond publication is called Generic names applied to birds during the years 1901 to 1905, but it does refer to torquata. I think salvadorii would be good except Chubb & Brabourn were unaware of torquata. So use plenary power to accept torquata or have SACC accept salvadorii or a new name? What is the Latin for a screamer?
 
Clamator ?
But I'd be rather tempted to attribute the name to Richmond, in which case the only change that is needed is in the authorship. And, if not that, salvadorii is certainly available and not preoccupied, hence will have precedence over any new name that might be proposed now.
 
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