Elseya

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Elseya
E lavarackorum 2.jpg
Elseya lavarackorum
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Testudines
Suborder: Pleurodira
Family: Chelidae
Subfamily: Chelodininae
Genus: Elseya
Gray, 1867 [1]
Type species
Chelymys dentata
Synonyms [3]

ChelymysGray, 1844
EuchelymysGray, 1871
Pelocomastes De Vis, 1897 [4] [5]

Contents

Elseya is a genus of large side-necked turtles, commonly known as Australian snapping turtles, in the family Chelidae. Species in the genus Elseya are found in river systems in northern and northeastern Australia and throughout the river systems of New Guinea. [6] They are identified by the presence of alveolar ridges on the triturating surfaces of the mouth and the presence of a complex bridge strut. [7]

The Australian snapping turtles are largely herbivorous, with specialized mouth structures for eating fruits. However, they will eat animal products if opportunity arises. The various species can be found in large numbers where they are still abundant, e.g., Northern Territory of Australia. However, a number of the populations have become increasingly rare, and some are now listed as endangered.

Systematics

Etymology

John Edward Gray created the generic name, Elseya, in 1867 in honour of Dr. Joseph Ravenscroft Elsey, a surgeon-naturalist on the Gregory Expedition [8] that traversed northern Australia from the Victoria River to Moreton Bay in 1855–1856.

List of species

The genus was originally described by Gray in 1867 with the type species being set as Elseya dentata. The fossil genus Pelocomastes was later synonymised with this genus. [5] Following the recent revisions of this genus, the latisternum group has been moved to the new genus Myuchelys . [9] The remaining species of this genus have additionally been separated into three subgenera, Elseya, Pelocomastes, and Hanwarachelys, and the species redistributed among them. [10]

Common nameScientific name [lower-alpha 1] IUCN Red List Status [11] Picture
Subgenus:Elseya
Northern snapping turtle Elseya dentata
(Gray, 1863) [12]
LC Emydura macquarii Baltimore Aquarium.jpg
Branderhorst's snapping turtle Elseya branderhorsti
(Ouwens, 1914) [13]
VU IUCN Elseya branderhorsti.jpg
Yellow-bellied snapping turtle Elseya flaviventralis
Thomson & Georges, 2016 [14]
LC
Elseya kalumburu
Joseph-Ouni, McCord, & Cann, 2022 [15]
Subgenus:Pelocomastes
White-throated snapping turtle Elseya albagula
Thomson, Georges & Limpus, 2006 [6]
EN E albagula 4.jpg
Irwin's turtle Elseya irwini
Cann, 1997 [16]
NE Irwin's turtle (2261030419).jpg
Gulf snapping turtle Elseya lavarackorum
(White & Archer, 1994) [17]
NE E lavarackorum 2.jpg
Subgenus:Hanwarachelys
Elseya caelatus
Joseph-Ouni, & McCord, 2019
Merauke snapping turtle Elseya papua
Joseph-Ouni & McCord, 2022
Western New Guinea stream turtle Elseya novaeguineae
(Meyer, 1874) [18]
LC IUCN Myuchelys novaeguineae.jpg
Nabire snapping turtle Elseya nabire
Joseph-Ouni & McCord, 2022
Southern New Guinea stream turtle Elseya rhodini
Thomson, Amapou, Anamiato & Georges, 2015 [10]
Elseya rhodini png.jpg
Northern New Guinea stream turtle Elseya schultzei
(T. Vogt, 1911) [19]
LC Elseya schultzei head.jpg
Subgenus:Solomonemys
Guadalcanal snapping turtle Elseya auramemoria
Joseph-Ouni, McCord, & Dwyer, 2022
Malaita snapping turtle Elseya eidolon
Joseph-Ouni, McCord, & Dwyer, 2022

Extinct species

Fossil of Elseya uberrima Lectotype elseya uberrima.jpg
Fossil of Elseya uberrima

There are two identified extinct species of Elseya. Elseya nadibajagu Thomson & Mackness, 1999 [20] and Elseya uberrima (De Vis, 1897) [21] are prehistoric species known only from fossils. E. lavarackorum was initially believed also to be a fossil taxon, but later discovered to be still extant. [7] Elseya nadibajagu is a Pliocene species of extinct Australian snapping turtle, described from the Bluff Downs region of Queensland, Australia.; [22] whereas Elseya uberrima is a Pleistocene species described from the Darling Downs region of Queensland, Australia. [23]

Notes

  1. A binomial authority in parentheses indicates the species was originally described in a genus other than Pelusios.

Related Research Articles

<span class="mw-page-title-main">Chelidae</span> Family of turtles

Chelidae is one of three living families of the turtle suborder Pleurodira, and are commonly called Austro-South American side-neck turtles. The family is distributed in Australia, New Guinea, parts of Indonesia, and throughout most of South America. It is a large family of turtles with a significant fossil history dating back to the Cretaceous. The family is entirely Gondwanan in origin, with no members found outside Gondwana, either in the present day or as a fossil.

<span class="mw-page-title-main">Eastern long-necked turtle</span> Species of turtle

The eastern long-necked turtle is an east Australian species of snake-necked turtle that inhabits a wide variety of water bodies and is an opportunistic feeder. It is a side-necked turtle (Pleurodira), meaning that it bends its head sideways into its shell rather than pulling it directly back.

<i>Chelodina</i> Genus of turtles

Chelodina, collectively known as snake-necked turtles, is a large and diverse genus of long-necked chelid turtles with a complicated nomenclatural history. Although in the past, Macrochelodina and Macrodiremys have been considered separate genera and prior to that all the same, they are now considered subgenera of the Chelodina, further Macrochelodina and Macrodiremys are now known to apply to the same species, hence Chelydera is used for the northern snake-necked turtles.

<span class="mw-page-title-main">Parker's snake-necked turtle</span> Species of turtle

Parker's snake-necked turtle is a species of turtle in the family Chelidae.

Reimann's snake-necked turtle is a species of turtle in the family Chelidae. The species is endemic to Oceania and Southeast Asia.

The Namoi River snapping turtle, also commonly known as Bell's turtle, the Namoi River elseya, or Bell's saw-shelled turtle, is a species of turtle in the family Chelidae. The species is endemic to New South Wales, Australia.

<span class="mw-page-title-main">New Guinea snapping turtle</span> Species of turtle

The Western New Guinea stream turtle or New Guinea snapping turtle is a species of freshwater turtle in the Chelidae family. It is found in the Bird's Head Peninsula and the Bomberai Peninsula west of Cenderawasih Bay, and on the island of Waigeo of West Papua, Indonesia.

<i>Emydura</i> Genus of turtles

Emydura, the Australian short-necked turtles, are a genus of turtles in the family Chelidae. It was paraphyletic with Elseya. Consequently, it was split into two genera Myuchelys and Elseya by Thomson & Georges, 2009. They can grow quite large, 30 cm or more is not unusual and have a life span of around 20–30 years. They generally do not hibernate as their warmer climate lets them remain active all year round; they also spend more time in the water than other varieties. They are considered omnivore but rely on a constant supply of meat to remain healthy, feeding on basically anything that will fit into their mouth.

<span class="mw-page-title-main">Red-bellied short-necked turtle</span> Species of turtle

The red-bellied short-necked turtle, also known commonly as the pink-bellied side-necked turtle and the Jardine River turtle, is a species of turtle in the family Chelidae. The species is native to Australia and Papua New Guinea. There are two recognized subspecies.

<span class="mw-page-title-main">Fitzroy River turtle</span> Species of turtle

The Fitzroy River turtle is a species of freshwater turtle in the family Chelidae. It is the only surviving member of the genus Rheodytes, the other member being the extinct form Rheodytes devisi. The species is endemic to south eastern Queensland, Australia and only found in tributaries of the Fitzroy River.

<i>Elseya uberrima</i> Extinct species of turtle

Elseya uberrima is a Pliocene species of extinct Australian snapping turtle.

<i>Myuchelys</i> Genus of turtles

The Myuchelys is a genus of turtles, the Australian saw-shelled turtles, in the family Chelidae and subfamily Chelodininae. They inhabit the headwaters and tributaries of rivers within their range and this led to the name Myuchelys, which is formed from the Aboriginal word myuna meaning clear water and the Greek chelys meaning turtle. 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.

<i>Elseya albagula</i> Species of turtle

Elseya albagula, commonly known as the white-throated snapping turtle, is one of the largest species of chelid turtles in the world, growing to about 45 cm (18 in) carapace length.

<span class="mw-page-title-main">Saw-shelled turtle</span> Species of turtle

The saw-shelled turtle is a species of turtle in the Chelidae family endemic to Australia, ranging along rivers and streams and connected swamps and lagoons from coastal Cape York Peninsula to northern New South Wales, with populations also noted as far south as Newcastle -. They are thought to have been introduced to Lake Eacham in the Atherton Tablelands. Other common English names are: serrated snapping turtle or common sawshell turtle.

<i>Chelodina canni</i> Species of turtle

Chelodina canni, also known commonly as Cann's snake-necked turtle, is a species of turtle in the family Chelidae. The species is endemic to Australia, where it is found in the northern and northeastern parts of the continent. It has a narrow zone of hybridization with its related species the eastern snake-necked turtle, C. longicollis. For many years C. canni was assumed to be the same species as C. novaeguineae from New Guinea. However, in 2002 it was shown that these two species differ both morphologically and genetically, and therefore C. canni was separated and described as a unique species.

<i>Mesoclemmys</i> Genus of turtles

Mesoclemmys is a South American genus of turtle in the Chelidae family.

<i>Elseya dentata</i> Species of turtle

Elseya dentata, the northern snapping turtle, is a large aquatic turtle found throughout many rivers in northern Western Australia and the Northern Territory. It is one of three species in the nominate subgenus Elseya.

<i>Elseya schultzei</i> Species of New Guinea turtle

Elseya schultzei, commonly known as Schultze's snapping turtle, is a species of chelid turtle endemic to northern New Guinea.

<i>Elseya rhodini</i> Species of New Guinea turtle

Elseya rhodini, the southern New Guinea stream turtle, is a recently described aquatic species of chelid turtle found south of the central ranges of New Guinea. It inhabits small streams that flow into the major river drainage's south of the ranges.

<span class="mw-page-title-main">Scott A. Thomson</span> Australian herpetologist

Scott A. Thomson is an Australian herpetologist, paleontologist, and taxonomist, specialising in turtles of the family Chelidae.

References

  1. Gray JE (1867). "Description of a new Australian tortoise (Elseya latisternum)". Ann. Mag. Nat. Hist., Third Series20: 43-45.
  2. Lindholm WA (1929). "Revidiertes Verzeichnes der Gattungen der rezenten Schildkröten nebst Notizen zur Nomenklatur einiger Arten ". Zoologischer Anzeiger81 (11/12): 275-295. (in German).
  3. Turtle Taxonomy Working Group [van Dijk PP, Iverson JB, Rhodin AGJ, Shaffer HB, Bour R] (2014). "Turtles of the world, 7th edition: annotated checklist of taxonomy, synonymy, distribution with maps, and conservation status". In: Rhodin AGJ, Pritchard PCH, van Dijk PP, Saumure RA, Buhlmann KA, Iverson JB, Mittermeier RA (Editors) (2014). Conservation Biology of Freshwater Turtles and Tortoises: A Compilation Project of the IUCN/SSC Tortoise and Freshwater Turtle Specialist Group. Chelonian Research Monographs5 (7): 000.329–479, doi:10.3854/ crm.5.000.checklist.v7.2014.
  4. De Vis CW (1897). "The extinct freshwater turtles of Queensland". Annals of the Queensland Museum3: 3-7.
  5. 1 2 Thomson SA (2000). "A Revision of the Fossil Chelid Turtles (Pleurodira) Described by C.W. De Vis, 1897". Memoirs of the Queensland Museum45 (2):593-598. Brisbane. ISSN 0079-8835. PDF fulltext
  6. 1 2 Thomson S, Georges A, Limpus C (2006). "A New Species of Freshwater Turtle in the Genus Elseya (Testudines: Chelidae) from Central Coastal Queensland, Australia". Chelon. Conserv. Biol. 5 (1): 74–86. PDF fulltext Archived 2007-08-29 at the Wayback Machine
  7. 1 2 Thomson S, White A, Georges A (1997). "Re-Evaluation of Emydura lavarackorum: Identification of a Living Fossil". Memoirs of the Queensland Museum42 (1): 327-336.
  8. Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press. xiii + 296 pp. ISBN   978-1-4214-0135-5. (Genus Elseya, p. 83).
  9. Thomson S, Georges A (2009). "Myuchelys gen. nov. — a new genus for Elseya latisternum and related forms of Australian freshwater turtle (Testudines: Pleurodira: Chelidae)". Zootaxa2053: 32–42.
  10. 1 2 Thomson S, Amepou Y, Anamiato J, Georges A (2015). "A new species and subgenus of Elseya (Testudines: Pleurodira: Chelidae) from New Guinea". Zootaxa4006 (1): 59-82. Preview (PDF)
  11. Turtle Taxonomy Working Group [van Dijk, P.P., Iverson, J.B., Rhodin, A.G.J., Shaffer, H.B., and Bour, R.]. 2014. "Turtles of the world, 7th edition: annotated checklist of taxonomy, synonymy, distribution with maps, and conservation status". In: Rhodin, A.G.J., Pritchard, P.C.H., van Dijk, P.P., Saumure, R.A., Buhlmann, K.A., Iverson, J.B., and Mittermeier, R.A. (Eds.). Conservation Biology of Freshwater Turtles and Tortoises: A Compilation Project of the IUCN/SSC Tortoise and Freshwater Turtle Specialist Group. Chelonian Research Monographs 5(7):000.329–479 doi : 10.3854/crm.5.000.checklist.v7.2014
  12. Gray JE (1863). "On the species of Chelymys from Australia, with the description of a new species". Annals and Magazine of Natural History, Third Series12: 98-99.
  13. Ouwens PA (1914). "List of Dutch East Indian Chelonians in the Buitenzong Zoological Museum". Contributions a la Faune des Indes Néelandaises1: 29-32.
  14. Thomson S, Georges A (2015). "A new species of freshwater turtle of the genus Elseya (Testudinata: Pleurodira: Chelidae) from the Northern Territory of Australia". Zootaxa4061 (1): 18-28. PDF
  15. "Elseya kalumburu". Reptile Database. Retrieved 17 January 2022.
  16. Cann J (1997). "Irwin's Turtle". Monitor9 (1): 36-40.
  17. White AW, Archer M (1994). "Emydura lavarackorum, a new Pleistocene turtle (Pleurodira: Chelidae) from fluviatile deposits at Riversleigh, Northwestern Queensland". Records of the South Australian Museum27 (2): 160-167.
  18. Meyer AB (1874). "Platemys novaeguineae sp. nov. Dr W.H. Peters legte vor: Eine mitteilung von Hrn. Adolf Bernhard Meyer über die von ihm auf Neu-Guinea under den Inseln Jobi, Mysore und Mafoor im Jahre 1873 gesammelten Amphibien ". Monatsber. Konig. Preuss. Akad. Wiss. Berlin39: 128-140. (in German).
  19. Vogt, Theodor (1911). "Reptilien und Amphibien aus Neu-Guinea". Sitzungsberichte der Gesellschaft der Naturforschender Freunde, Berlin9: 410–414. (in German).
  20. Thomson SA, Mackness BS (1999). "Fossil Turtles from the Early Pliocene Bluff Downs Local Fauna, with a description of a new species of Elseya ". Trans. R. Soc. S. Australia123 (3): 101-105.
  21. De Vis CW (1897). "The extinct freshwater turtles of Queensland". Annals of the Queensland Museum3: 3-7.
  22. Thomson SA, Mackness BS. (1999). "Fossil turtles from the Early Pliocene Bluff Downs local fauna, with a description of a new species of Elseya" (PDF). Transactions of the Royal Society of South Australia. 123 (3): 101–105.
  23. Thomson SA. 2000. A Revision of the Fossil Chelid Turtles (Pleurodira) Described by C.W. De Vis, 1897. Memoirs of the Queensland Museum45 (2): 593-598. (Brisbane).