Cyanocorax jays (2 Viewers)

[Richard Klim]

Bonaccorso, Peterson, Navarro-Sigüenza & Fleischer 2009. Molecular Systematics and Evolution of the Cyanocorax Jays. Mol Phyl Evol: in press:
http://www.sciencedirect.com/scienc...serid=10&md5=18ca208c37e7e07ddf5ee9868c1d2773

Richard

 

[blackburnian2000]

Well, then it looks like AOU won't pass the proposal to change Brown Jay to Cyanocorax morio (http://www.aou.org/committees/nacc/proposals/2009-A.pdf), because I don't see them merging Calocitta into a broad Cyanocorax either, it's just too distinctive. We'll have to wait and see what they do with this.

 

[Richard Klim]

I haven't read this paper yet, but I note that John Boyd (TiF) comments that it provides support for the split of C luxuosus from C yncas (as already recognised by IOC, following Ridgely & Greenfield 2001, Hilty 2003).
http://jboyd.net/Taxo/List19.html#corvidae

Richard

 

[l_raty]

C. yucatanicus

Termignoni-García, Jaramillo-Correa, Chablé-Santos, Liu, Shultz, Edwards, Escalante-Pliego. 2017. Genomic footprints of adaptation in a cooperatively breeding tropical bird across a vegetation gradient. Mol. Ecol. 26: 4483–4496.
[abstract & supp.info.]

 

[Nutcracker]

Preview poster of New World jay phylogeny:

https://twitter.com/LAevolving/status/981977634321018881

 

[Jim LeNomenclatoriste]

A new candidate genus of current Cyanocorax that are not sister to other Cyanocorax with light irises

Uroleuca Bonaparte, 1850 (type species : Corvus cyanoleucus Wied = Corvus cristatellus Temm. ), is available.

 

[Jim LeNomenclatoriste]

Uroleuca Bonaparte, 1850 (type species : Corvus cyanoleucus Wied = Corvus cristatellus Temm. ), is available.

In fact, what's the correct type species of Uroleuca ?

 

[l_raty]

In fact, what's the correct type species of Uroleuca ?

Uroleuca in:

Bonaparte CL. 1850. Conspectus generum avium. EJ Brill, Leiden.; p. 379.​

The originally included nominal species were Uroleuca cayan[a] (syn. cayanensis, albicapilla, mysticalis, larvata), U. cyanoleuc[a] (syn. splendidus, cristatellus), U. cyanopogon, U. pileat[a] (syn. chrysops).

The type is Corvus cyanoleucus Wied-Neuwied 1821 (which is a senior syn. of Corvus cristatellus Temminck 1823, but cannot be used as valid, as it is also a junior primary homonym of Corvus cyanoleucus Latham 1801, now in Grallina, Monarchidae), by subsequent designation in:

Cabanis J. 1850-51. Museum heineanum. Verzeichniss der ornithologischen Sammlung des Oberamtmann Ferdinand Heine, auf Gut St. Burchard vor Halberstadt. I. Theil, die Singvögel enthaltend. R Frantz, Halberstadt.; p. 225, footnote.​

 

[Jim LeNomenclatoriste]

Uroleuca in:

Bonaparte CL. 1850. Conspectus generum avium. EJ Brill, Leiden.; p. 379.​

The originally included nominal species were Uroleuca cayan[a] (syn. cayanensis, albicapilla, mysticalis, larvata), U. cyanoleuc[a] (syn. splendidus, cristatellus), U. cyanopogon, U. pileat[a] (syn. chrysops).

The type is Corvus cyanoleucus Wied-Neuwied 1821 (which is a senior syn. of Corvus cristatellus Temminck 1823, but cannot be used as valid, as it is also a junior primary homonym of Corvus cyanoleucus Latham 1801, now in Grallina, Monarchidae), by subsequent designation in:

Cabanis J. 1850-51. Museum heineanum. Verzeichniss der ornithologischen Sammlung des Oberamtmann Ferdinand Heine, auf Gut St. Burchard vor Halberstadt. I. Theil, die Singvögel enthaltend. R Frantz, Halberstadt.; p. 225, footnote.​

Phew ok. Because the key given an other type but BOW is down for now.

 

[l_raty]

Because the key given an other type but BOW is down for now.

Yes, the Key offers two interpretations, the other being that Gray 1855 designated Corvus pileatus "Illiger" (= Temminck), a synonym of Pica chrysops Vieillot.

Of course 1855 was later than 1851, and Gray 1855 could not have validly designated a type if Cabanis had already done it four years later (which he definitely had). But, in addition, there is actually no such designation in Gray 1855 at all. Gray 1855 wrote :

1052. CYANOCORAX, Boie, 1826. Uroleuca, Pr. B. 1850. (Corvus pileatus, Ill.)

...which (in the light of a statement in the first paragraph of the book's introduction) makes Cyanocorax a subgenus (no asterisk ahead of "1052."), with Uroleuca its "chief synonymon", and Corvus pileatus Illiger (= Temminck) its type. There is nothing in this entry that can be read as a type designation for Uroleuca itself. Gray was a great fan of the "first species cited = type" principle and, when he wrote this entry, my guess would be that he assumed that the type of Uroleuca had to be Corvus cayanus Linnaeus 1766, the first species cited by Bonaparte, which in his judgement made Uroleuca a subjective synonym of Cyanocorax.