Myuchelys: Difference between revisions

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During the time the species [[Namoi River Snapping Turtle|''Myuchelys belli'']] was basically lost to knowledge having been misidentified as a South American species when described by Gray, 1844<ref name=JEG44 /> and was in the genus ''[[Phrynops]]'' until this oversight was corrected by Cann, 1998<ref name=ca98>Cann, J. (1998) Australian Freshwater Turtles. Beaumont Publishing, Singapore.</ref>. The species [[Bellinger River Snapping Turtle|''Myuchelys georgesi'']] and [[Manning River Snapping Turtle|''Myuchelys purvisi'']] are recent editions initially placed in the genus ''Elseya'' but were identified as belonging to a unique clade along with ''[[Myuchelys latisternum]]'' and [[Namoi River Snapping Turtle|''Myuchelys belli'']] by Georges and Adams, 1992<ref name=ga92>Georges, A. & Adams, M. (1992) A phylogeny for Australian chelid turtles based on allozyme electrophoresis. Australian Journal of Zoology, 40, 453–476.</ref> using electrophoresis.
During the time the species [[Namoi River Snapping Turtle|''Myuchelys belli'']] was basically lost to knowledge having been misidentified as a South American species when described by Gray, 1844<ref name=JEG44 /> and was in the genus ''[[Phrynops]]'' until this oversight was corrected by Cann, 1998<ref name=ca98>Cann, J. (1998) Australian Freshwater Turtles. Beaumont Publishing, Singapore.</ref>. The species [[Bellinger River Snapping Turtle|''Myuchelys georgesi'']] and [[Manning River Snapping Turtle|''Myuchelys purvisi'']] are recent editions initially placed in the genus ''Elseya'' but were identified as belonging to a unique clade along with ''[[Myuchelys latisternum]]'' and [[Namoi River Snapping Turtle|''Myuchelys belli'']] by Georges and Adams, 1992<ref name=ga92>Georges, A. & Adams, M. (1992) A phylogeny for Australian chelid turtles based on allozyme electrophoresis. Australian Journal of Zoology, 40, 453–476.</ref> using electrophoresis.


The unfortunate history of the genus now came to play. The genus name ''Wollumbinia'' was erected by Wells, 2007<ref name=we97>Wells, R.W. (2007) Some taxonomic and nomenclatural considerations on the Class Reptilia in Australia. A new genus of the Family Chelidae from eastern Australia. "Australian Biodiversity Record", 2007(3), 1–12</ref>, however this paper is in breach of the ICZN code defining a valid publication,{{or|date=December 2010}}{{citation needed|date=December 2010}} ICZN Articles 8 and 9 and Recommendation 8D (Fritz & Havaš, 2007<ref name=fr07>Fritz, U. & Havaš, P. (2007) [http://www.iucn-tftsg.org/wp-content/uploads/file/Articles/Fritz_and_Havas_2007.pdf Checklist of chelonians of the world.] Vertebrate Zoology (Dresden), 57, 149–368.</ref>; Georges and Thomson, 2010<ref name=gt10 />). As such this name cannot and should not be used.{{why|date=December 2010}}{{or|date=December 2010}}{{citation needed|date=December 2010}} The genus encompassing these species was finally described by Thomson and Georges, 2009<ref name=TG09 /> and the last species, [[New Guinea Snapping Turtle|''Myuchelys novaeguineae'']], added to it by Georges and Thomson, 2010<ref name=gt10 />.
The unfortunate history of the genus now came to play. The genus name ''Wollumbinia'' was erected by Wells, 2007<ref name=we97>Wells, R.W. (2007) Some taxonomic and nomenclatural considerations on the Class Reptilia in Australia. A new genus of the Family Chelidae from eastern Australia. "Australian Biodiversity Record", 2007(3), 1–12</ref>, however this paper is in breach of the ICZN code defining a valid publication, ICZN Articles 8 and 9 and Recommendation 8D.<ref name=gt10 /><ref name=fr07>Fritz, U. & Havaš, P. (2007) [http://www.iucn-tftsg.org/wp-content/uploads/file/Articles/Fritz_and_Havas_2007.pdf Checklist of chelonians of the world.] Vertebrate Zoology (Dresden), 57, 149–368.</ref> According to Georges and Thomson, the name should not be used.<ref name=gt10 /> The genus encompassing these species was finally described by Thomson and Georges, 2009<ref name=TG09 /> and the last species, [[New Guinea Snapping Turtle|''Myuchelys novaeguineae'']], added to it by Georges and Thomson, 2010<ref name=gt10 />.


==References==
==References==

Revision as of 00:22, 14 December 2010

Australian Snapping Turtles
Myuchelys purvisi
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Class:
Sauropsida
Order:
Testudines
Suborder:
Pleurodira
Family:
Chelidae
Subfamily:
Chelodininae
Genus:
Myuchelys

Thomson & Georges, 2009[1]
Species

About 5 described, see text

The Australian Saw Shelled Turtles, Myuchelys, are a genus of turtles in the family Chelidae. They inhabit the headwaters and tributaries of rivers within their range and this led to the name Myuchelys, which is formed from the Aboriginal words Myuna meaning high water and chelys meaning turtle.[1] They have a short neck and the intergular scute completely separates the gular scutes. They have no alveolar ridge separating them from the Snapping Turtles of the genus Elseya.

The genus currently contains five rather cryptic small species of freshwater turtles, endemic to eastern and northern Australia and southern New Guinea, Irian Jaya.

Taxonomic History

The members of this genus have had a long and unfortunate history with regards to their placement[7]. The species M. latisternum was originally placed in the genus Elseya by Gray, 1867[2] but the Elseya was redifined by Boulenger, 1889[10] to include species defined by the presence of an alveolar ridge. Hence Myuchelys latisternum and Myuchelys novaeguineae were moved to the genus Emydura. In 1967 the two species were placed back in the genus Elseya by Goode, 1967[11] where they remained until recently.

During the time the species Myuchelys belli was basically lost to knowledge having been misidentified as a South American species when described by Gray, 1844[5] and was in the genus Phrynops until this oversight was corrected by Cann, 1998[12]. The species Myuchelys georgesi and Myuchelys purvisi are recent editions initially placed in the genus Elseya but were identified as belonging to a unique clade along with Myuchelys latisternum and Myuchelys belli by Georges and Adams, 1992[13] using electrophoresis.

The unfortunate history of the genus now came to play. The genus name Wollumbinia was erected by Wells, 2007[14], however this paper is in breach of the ICZN code defining a valid publication, ICZN Articles 8 and 9 and Recommendation 8D.[7][15] According to Georges and Thomson, the name should not be used.[7] The genus encompassing these species was finally described by Thomson and Georges, 2009[1] and the last species, Myuchelys novaeguineae, added to it by Georges and Thomson, 2010[7].

References

  1. ^ a b c Thomson, S. & Georges, A. (2009) Myuchelys gen. nov. —a new genus for Elseya latisternum and related forms of Australian freshwater turtle (Testudines: Pleurodira: Chelidae) Zootaxa 2053: 32–42.
  2. ^ a b Gray, J.E. 1867. Description of a new Australian tortoise. Annals and Magazine of Natural History. 3(20):43-45
  3. ^ Cann, J. 1998a. Georges short-neck turtle. Monitor 9(1):18-23.
  4. ^ Wells, R.W. and Wellington, C.R. 1985. A classification of the amphibia and reptilia of Australia. Australian Journal of Herpetology, Supplementary Series. 1:1-61.
  5. ^ a b Gray, J. E. 1844. Catalogue of the Tortoises, Crocodiles and Amphibaenians in the Collection of the British Museum. London. Edward Newman. 80pp.
  6. ^ Meyer, A.B. 1874. Platemys novaeguineae sp. nov. Dr W.H. Peters legte vor: Eine mitteilung von Hrn. Adolf Bernhard Meyer uber die von ihm auf Neu-Guinea under den Inseln Jobi, Mysore und Mafoor im Jahre 1873 gesammelten Amphibien. Monatsber. Konig. Preuss. Akad. Wiss. Berlin. 39:128-140.
  7. ^ a b c d e Georges, A. & Thomson, S. 2010. Diversity of Australasian freshwater turtles, with an annotated synonymy and keys to species. Zootaxa 2496: 1–37.
  8. ^ Vogt, T. 1911. Emydura schultzei, sp. nov. Reptilien und Amphibien aus Neu Guinea. Sber. ges. naturf. Freunde, Berl. 9:410-412.
  9. ^ Artner, H. 2008. The world's extant turtle species, Part 1. Emys, 15, 4-32.
  10. ^ Boulenger, G.A. (1889) Catalogue of the Chelonians, Rhynchocephalians, and Crocodiles in the British Museum (Natural History). British Museum, London.
  11. ^ Goode, J. (1967) Freshwater Tortoises of Australia and New Guinea (in the Family Chelidae). Lansdowne Press, Melbourne.
  12. ^ Cann, J. (1998) Australian Freshwater Turtles. Beaumont Publishing, Singapore.
  13. ^ Georges, A. & Adams, M. (1992) A phylogeny for Australian chelid turtles based on allozyme electrophoresis. Australian Journal of Zoology, 40, 453–476.
  14. ^ Wells, R.W. (2007) Some taxonomic and nomenclatural considerations on the Class Reptilia in Australia. A new genus of the Family Chelidae from eastern Australia. "Australian Biodiversity Record", 2007(3), 1–12
  15. ^ Fritz, U. & Havaš, P. (2007) Checklist of chelonians of the world. Vertebrate Zoology (Dresden), 57, 149–368.

External links

Wikispecies has information related to Myuchelys.
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