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Chelodina ipudinapi JOSEPH-OUNI & MCCORD, 2022

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Higher TaxaChelidae, Chelodininae, Pleurodira, Testudines (turtles)
Subspecies 
Common NamesE: Aramia snake-necked turtle 
SynonymChelodina (Chelodina) ipudinapi JOSEPH-OUNI & MCCORD 2022 
DistributionPapua New Guinea (Western Province: Aramia and upper Bamu rivers)

Type locality: vicinity of Balimo, Aramia River, Western Province, Papua New Guinea.  
Reproduction 
TypesHolotype: YPM HERR.022303 (Plate 1), an adult female specimen collected by Gogodala, November, 1992
Paratypes (4): YPM HERR.022299 (Plate 1); YPM HERR.022300; YPM HERR.022301; YPM HERR.022302; all adult specimens with same collection data as holotype. 
DiagnosisDiagnosis.- A ‘dwarf’ species (Plates 3a, 3b) of the New Guinea Snake-neck Turtle Chelodina (Chelodina) novaeguineae complex, typically up to 20% smaller in adult maturity size than the C. novaeguineae (Plates , distinguished further by the following combination of characters: a more evenly oval carapace with less posterior marginal flaring in adults; a pleural scute #1 (P1) – vertebral scute #1 (V1) sulcus that convexly contacts outwardly at M2 sulcus; a plastral sulcus formula of IGSL> IAn> IP≥ IAb> IF ≥ IG on average; G - IG scute sulcus longer than or equal to the humeral - IG scute sulcus on average; IP sulcus ≥ IAb sulcus; a large smooth, unbroken scale supratympanic scale extending continuously off from the dorso-posterior portion of the tympanum; lateral facial scales, nose, interorbital skin, and top jaw all bright white to faded white in mature adult specimens; anterior marginals relatively shorter in length; by more numerous and smaller facial scales between the posterior orbit of the eye and the tympanum, on average; and by a shorter, rounder face. Males are 5- 10% smaller than females and have relatively thicker, longer tails and sharper and deeper Ushaped anal scute notches. (Joseph-Ouni & McCord 2022). 
CommentProvisionally accepted species as we haven’t seen the paper describing it. For turtles we also work with the TTWG to align our turtle list with theirs. 
EtymologyThe species name is derived from an epithet given to this form of snake-necked turtle by the Gogodala indigenous peoples of Balimo, meaning ‘little stinker’ = ‘ipudinapi’ (R. Danaya pers. comm. WPM) in reference to the particularly strong and foul odor wildcaught specimens defensively emit. 
References
  • Joseph-Ouni, Mehdi & William P. McCord. 2022. A NEW SPECIES OF CRYPTIC CHELODINA (TESTUDINES: CHELIDAE) FROM THE ARAMIA RIVER REGION, PAPUA NEW GUINEA. The Batagur Monographs 4: 7-26
 
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https://reptile-database.reptarium.cz/species?genus=Chelodina&species=ipudinapi

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