A new species and subgenus of Elseya (Testudines: Pleurodira: Chelidae) from New Guinea Author Thomson, Scott Author Amepou, Yolarnie Author Anamiato, Jim Author Georges, Arthur text Zootaxa 2015 4006 1 59 82 journal article 10.11646/zootaxa.4006.1.3 a73584b0-b729-482f-b91f-f0a42bb25591 1175-5326 289264 14516538-9B91-4363-9541-0AF373F9B614 Subgenus Elseya Gray, 1867 :44 The nominotypical subgenus, established by Thomson et al., this work. Type Species: Elseya dentata ( Gray 1863: 98 ) . Diagnosis : A medial constriction in suture between the anterior bridge strut and the carapace; ileum sutures to the carapace on the posterior 2/3 of the 8th pleural (Figure 2); cervical scute absent except as a rare variant; parietal arch narrow; no prominent process of the head shield extending down the parietal ridge toward the tympanum; temporal region covered with prominent scales; temporal stripes absent; lingual ridge on the ramphotheca and the dentary bones absent; alveolar ridge moderately developed, narrow, clearly visible on the ramphotheca and the underlying dentary ( Figure 3 ). Referred species: Elseya dentata ( Gray 1863: 98 ) , Elseya branderhorsti ( Ouwens 1914 ) , Elseya sp. aff. dentata (Sth Alligator) (sensu Georges & Adams 1992 ) . ( Figure 4 ) FIGURE 2. Comparison of the ileum suture of A. Elseya branderhorsti and B. Elseya rhodini . P7—Pleural 7, P8—Pleural 8, SP—Suprapygal, Pe10—10th Peripheral, Pe11—11th Peripheral, T8—8th Thoracic Vertebrae, T9—9th Thoracic Vertebrae.