Head width - HW*
|
McCord et al. (2001McCord, W. P.; Joseph-Ouni, M. & Lamar, W. W. 2001. Taxonomic reevaluation of Phrynops (Testudines: Chelidae) with the description of two new genera and a new species of Batrachemys. Revista de Biologia Tropical 49(2):715-764.), Bour & Zaher (2005Bour, R. & Zaher, H. 2005. A new species of Mesoclemmys, from the open formations of Northeastern Brazil (Chelonii, Chelidae). Papéis Avulsos de Zoologia 45(24):295-311.) |
Head length - HL**
|
McCord et al. (2001McCord, W. P.; Joseph-Ouni, M. & Lamar, W. W. 2001. Taxonomic reevaluation of Phrynops (Testudines: Chelidae) with the description of two new genera and a new species of Batrachemys. Revista de Biologia Tropical 49(2):715-764.) |
Interorbital width - IOW**
|
McCord et al. (2001McCord, W. P.; Joseph-Ouni, M. & Lamar, W. W. 2001. Taxonomic reevaluation of Phrynops (Testudines: Chelidae) with the description of two new genera and a new species of Batrachemys. Revista de Biologia Tropical 49(2):715-764.) |
Tympanum-snout length - TSL**
|
This study |
Tympanum length - TYL**
|
This study |
Tympanum width - TW**
|
This study |
Nuchal scute length - NL**
|
Bager et al. (2010Bager, A.; Freitas, T. R. O. & Krause, L. 2010. Morphological characterization of adults of Orbigny’s slider Trachemys dorbignyi (Duméril & Bibron 1835) (Testudines Emydidae) in southern Brazil. Tropical Zoology 23(2):1-14., 2016Bager, A.; Lucas, P. S.; Costa, A.; Lima, J. C. & Silveira, L. S. 2016. Geographical variation in the morphology and sexual dimorphism of Acanthochelys spixii (Testudines, Chelidae) in Brazil. Tropical Zoology 29(2):76-86.) |
Carapace length - CL*
|
McCord et al. (2001McCord, W. P.; Joseph-Ouni, M. & Lamar, W. W. 2001. Taxonomic reevaluation of Phrynops (Testudines: Chelidae) with the description of two new genera and a new species of Batrachemys. Revista de Biologia Tropical 49(2):715-764.), Bour & Zaher (2005Bour, R. & Zaher, H. 2005. A new species of Mesoclemmys, from the open formations of Northeastern Brazil (Chelonii, Chelidae). Papéis Avulsos de Zoologia 45(24):295-311.), Bager et al. (2010Bager, A.; Freitas, T. R. O. & Krause, L. 2010. Morphological characterization of adults of Orbigny’s slider Trachemys dorbignyi (Duméril & Bibron 1835) (Testudines Emydidae) in southern Brazil. Tropical Zoology 23(2):1-14., 2016Bager, A.; Lucas, P. S.; Costa, A.; Lima, J. C. & Silveira, L. S. 2016. Geographical variation in the morphology and sexual dimorphism of Acanthochelys spixii (Testudines, Chelidae) in Brazil. Tropical Zoology 29(2):76-86.) |
Maximum carapace width - MCW*
|
McCord et al. (2001McCord, W. P.; Joseph-Ouni, M. & Lamar, W. W. 2001. Taxonomic reevaluation of Phrynops (Testudines: Chelidae) with the description of two new genera and a new species of Batrachemys. Revista de Biologia Tropical 49(2):715-764.), Bour & Zaher (2005Bour, R. & Zaher, H. 2005. A new species of Mesoclemmys, from the open formations of Northeastern Brazil (Chelonii, Chelidae). Papéis Avulsos de Zoologia 45(24):295-311.), Bager et al. (2010Bager, A.; Freitas, T. R. O. & Krause, L. 2010. Morphological characterization of adults of Orbigny’s slider Trachemys dorbignyi (Duméril & Bibron 1835) (Testudines Emydidae) in southern Brazil. Tropical Zoology 23(2):1-14., 2016Bager, A.; Lucas, P. S.; Costa, A.; Lima, J. C. & Silveira, L. S. 2016. Geographical variation in the morphology and sexual dimorphism of Acanthochelys spixii (Testudines, Chelidae) in Brazil. Tropical Zoology 29(2):76-86.) |
Central carapace width - CCW**
|
Bager et al. (2010Bager, A.; Freitas, T. R. O. & Krause, L. 2010. Morphological characterization of adults of Orbigny’s slider Trachemys dorbignyi (Duméril & Bibron 1835) (Testudines Emydidae) in southern Brazil. Tropical Zoology 23(2):1-14., 2016Bager, A.; Lucas, P. S.; Costa, A.; Lima, J. C. & Silveira, L. S. 2016. Geographical variation in the morphology and sexual dimorphism of Acanthochelys spixii (Testudines, Chelidae) in Brazil. Tropical Zoology 29(2):76-86.) |
Length of third central scute - LC3**
|
Bager et al. (2010Bager, A.; Freitas, T. R. O. & Krause, L. 2010. Morphological characterization of adults of Orbigny’s slider Trachemys dorbignyi (Duméril & Bibron 1835) (Testudines Emydidae) in southern Brazil. Tropical Zoology 23(2):1-14., 2016Bager, A.; Lucas, P. S.; Costa, A.; Lima, J. C. & Silveira, L. S. 2016. Geographical variation in the morphology and sexual dimorphism of Acanthochelys spixii (Testudines, Chelidae) in Brazil. Tropical Zoology 29(2):76-86.) |
Width of third central scute - WC3**
|
Bager et al. (2010Bager, A.; Freitas, T. R. O. & Krause, L. 2010. Morphological characterization of adults of Orbigny’s slider Trachemys dorbignyi (Duméril & Bibron 1835) (Testudines Emydidae) in southern Brazil. Tropical Zoology 23(2):1-14., 2016Bager, A.; Lucas, P. S.; Costa, A.; Lima, J. C. & Silveira, L. S. 2016. Geographical variation in the morphology and sexual dimorphism of Acanthochelys spixii (Testudines, Chelidae) in Brazil. Tropical Zoology 29(2):76-86.) |
Maximum carapace height - MHS*
|
McCord et al. (2001McCord, W. P.; Joseph-Ouni, M. & Lamar, W. W. 2001. Taxonomic reevaluation of Phrynops (Testudines: Chelidae) with the description of two new genera and a new species of Batrachemys. Revista de Biologia Tropical 49(2):715-764.), Bour & Zaher (2005Bour, R. & Zaher, H. 2005. A new species of Mesoclemmys, from the open formations of Northeastern Brazil (Chelonii, Chelidae). Papéis Avulsos de Zoologia 45(24):295-311.), Bager et al. (2010Bager, A.; Freitas, T. R. O. & Krause, L. 2010. Morphological characterization of adults of Orbigny’s slider Trachemys dorbignyi (Duméril & Bibron 1835) (Testudines Emydidae) in southern Brazil. Tropical Zoology 23(2):1-14., 2016Bager, A.; Lucas, P. S.; Costa, A.; Lima, J. C. & Silveira, L. S. 2016. Geographical variation in the morphology and sexual dimorphism of Acanthochelys spixii (Testudines, Chelidae) in Brazil. Tropical Zoology 29(2):76-86.) |
Maximum plastron length - MPL*
|
McCord et al. (2001McCord, W. P.; Joseph-Ouni, M. & Lamar, W. W. 2001. Taxonomic reevaluation of Phrynops (Testudines: Chelidae) with the description of two new genera and a new species of Batrachemys. Revista de Biologia Tropical 49(2):715-764.), Bour & Zaher (2005Bour, R. & Zaher, H. 2005. A new species of Mesoclemmys, from the open formations of Northeastern Brazil (Chelonii, Chelidae). Papéis Avulsos de Zoologia 45(24):295-311.), Bager et al. (2010Bager, A.; Freitas, T. R. O. & Krause, L. 2010. Morphological characterization of adults of Orbigny’s slider Trachemys dorbignyi (Duméril & Bibron 1835) (Testudines Emydidae) in southern Brazil. Tropical Zoology 23(2):1-14., 2016Bager, A.; Lucas, P. S.; Costa, A.; Lima, J. C. & Silveira, L. S. 2016. Geographical variation in the morphology and sexual dimorphism of Acanthochelys spixii (Testudines, Chelidae) in Brazil. Tropical Zoology 29(2):76-86.) |
Mid-ventral suture length plastron - MVSL**
|
McCord et al. (2001McCord, W. P.; Joseph-Ouni, M. & Lamar, W. W. 2001. Taxonomic reevaluation of Phrynops (Testudines: Chelidae) with the description of two new genera and a new species of Batrachemys. Revista de Biologia Tropical 49(2):715-764.), Bager et al. (2010Bager, A.; Freitas, T. R. O. & Krause, L. 2010. Morphological characterization of adults of Orbigny’s slider Trachemys dorbignyi (Duméril & Bibron 1835) (Testudines Emydidae) in southern Brazil. Tropical Zoology 23(2):1-14., 2016Bager, A.; Lucas, P. S.; Costa, A.; Lima, J. C. & Silveira, L. S. 2016. Geographical variation in the morphology and sexual dimorphism of Acanthochelys spixii (Testudines, Chelidae) in Brazil. Tropical Zoology 29(2):76-86.) |
Maximum plastron width - MPW*
|
McCord et al. (2001McCord, W. P.; Joseph-Ouni, M. & Lamar, W. W. 2001. Taxonomic reevaluation of Phrynops (Testudines: Chelidae) with the description of two new genera and a new species of Batrachemys. Revista de Biologia Tropical 49(2):715-764.), Bour & Zaher (2005Bour, R. & Zaher, H. 2005. A new species of Mesoclemmys, from the open formations of Northeastern Brazil (Chelonii, Chelidae). Papéis Avulsos de Zoologia 45(24):295-311.), Bager et al. (2010Bager, A.; Freitas, T. R. O. & Krause, L. 2010. Morphological characterization of adults of Orbigny’s slider Trachemys dorbignyi (Duméril & Bibron 1835) (Testudines Emydidae) in southern Brazil. Tropical Zoology 23(2):1-14., 2016Bager, A.; Lucas, P. S.; Costa, A.; Lima, J. C. & Silveira, L. S. 2016. Geographical variation in the morphology and sexual dimorphism of Acanthochelys spixii (Testudines, Chelidae) in Brazil. Tropical Zoology 29(2):76-86.) |
Anterior lobe width - ALW**
|
McCord et al. (2001McCord, W. P.; Joseph-Ouni, M. & Lamar, W. W. 2001. Taxonomic reevaluation of Phrynops (Testudines: Chelidae) with the description of two new genera and a new species of Batrachemys. Revista de Biologia Tropical 49(2):715-764.), Bour & Zaher (2005Bour, R. & Zaher, H. 2005. A new species of Mesoclemmys, from the open formations of Northeastern Brazil (Chelonii, Chelidae). Papéis Avulsos de Zoologia 45(24):295-311.), Bager et al. (2010Bager, A.; Freitas, T. R. O. & Krause, L. 2010. Morphological characterization of adults of Orbigny’s slider Trachemys dorbignyi (Duméril & Bibron 1835) (Testudines Emydidae) in southern Brazil. Tropical Zoology 23(2):1-14.) |
Posterior lobe width - PLW**
|
McCord et al. (2001McCord, W. P.; Joseph-Ouni, M. & Lamar, W. W. 2001. Taxonomic reevaluation of Phrynops (Testudines: Chelidae) with the description of two new genera and a new species of Batrachemys. Revista de Biologia Tropical 49(2):715-764.), Bour & Zaher (2005Bour, R. & Zaher, H. 2005. A new species of Mesoclemmys, from the open formations of Northeastern Brazil (Chelonii, Chelidae). Papéis Avulsos de Zoologia 45(24):295-311.), Bager et al. (2010Bager, A.; Freitas, T. R. O. & Krause, L. 2010. Morphological characterization of adults of Orbigny’s slider Trachemys dorbignyi (Duméril & Bibron 1835) (Testudines Emydidae) in southern Brazil. Tropical Zoology 23(2):1-14., 2016Bager, A.; Lucas, P. S.; Costa, A.; Lima, J. C. & Silveira, L. S. 2016. Geographical variation in the morphology and sexual dimorphism of Acanthochelys spixii (Testudines, Chelidae) in Brazil. Tropical Zoology 29(2):76-86.) |
Width of left and right gular scutes - WGS**
|
Bager et al. (2010Bager, A.; Freitas, T. R. O. & Krause, L. 2010. Morphological characterization of adults of Orbigny’s slider Trachemys dorbignyi (Duméril & Bibron 1835) (Testudines Emydidae) in southern Brazil. Tropical Zoology 23(2):1-14., 2016Bager, A.; Lucas, P. S.; Costa, A.; Lima, J. C. & Silveira, L. S. 2016. Geographical variation in the morphology and sexual dimorphism of Acanthochelys spixii (Testudines, Chelidae) in Brazil. Tropical Zoology 29(2):76-86.) |
Length of left gular scute - LGS**
|
Bager et al. (2016Bager, A.; Lucas, P. S.; Costa, A.; Lima, J. C. & Silveira, L. S. 2016. Geographical variation in the morphology and sexual dimorphism of Acanthochelys spixii (Testudines, Chelidae) in Brazil. Tropical Zoology 29(2):76-86.) |
Left gular scute length - GSL**
|
Bager et al. (2010Bager, A.; Freitas, T. R. O. & Krause, L. 2010. Morphological characterization of adults of Orbigny’s slider Trachemys dorbignyi (Duméril & Bibron 1835) (Testudines Emydidae) in southern Brazil. Tropical Zoology 23(2):1-14., 2016Bager, A.; Lucas, P. S.; Costa, A.; Lima, J. C. & Silveira, L. S. 2016. Geographical variation in the morphology and sexual dimorphism of Acanthochelys spixii (Testudines, Chelidae) in Brazil. Tropical Zoology 29(2):76-86.) |
Intergular scute width - IG**
|
McCord et al. (2001McCord, W. P.; Joseph-Ouni, M. & Lamar, W. W. 2001. Taxonomic reevaluation of Phrynops (Testudines: Chelidae) with the description of two new genera and a new species of Batrachemys. Revista de Biologia Tropical 49(2):715-764.), Molina et al. (2012Molina, F. B.; Machado, F. A. & Zaher, H. 2012. Taxonomic validity of Mesoclemmys heliostemma (McCord, Joseph-Ouni & Lamar, 2001) (Testudines, Chelidae) inferred from morphological analysis. Zootaxa 3575(1):63-77.) |
Left pectoral scute width - PSW**
|
Bager et al. (2010Bager, A.; Freitas, T. R. O. & Krause, L. 2010. Morphological characterization of adults of Orbigny’s slider Trachemys dorbignyi (Duméril & Bibron 1835) (Testudines Emydidae) in southern Brazil. Tropical Zoology 23(2):1-14.) |
Left pectoral scute length - PEL**
|
Bager et al. (2010Bager, A.; Freitas, T. R. O. & Krause, L. 2010. Morphological characterization of adults of Orbigny’s slider Trachemys dorbignyi (Duméril & Bibron 1835) (Testudines Emydidae) in southern Brazil. Tropical Zoology 23(2):1-14., 2016Bager, A.; Lucas, P. S.; Costa, A.; Lima, J. C. & Silveira, L. S. 2016. Geographical variation in the morphology and sexual dimorphism of Acanthochelys spixii (Testudines, Chelidae) in Brazil. Tropical Zoology 29(2):76-86.) |
Left abdominal scute length - ASL**
|
Bager et al. (2010Bager, A.; Freitas, T. R. O. & Krause, L. 2010. Morphological characterization of adults of Orbigny’s slider Trachemys dorbignyi (Duméril & Bibron 1835) (Testudines Emydidae) in southern Brazil. Tropical Zoology 23(2):1-14.) |
Left abdominal scute width - ASW**
|
Bager et al. (2010Bager, A.; Freitas, T. R. O. & Krause, L. 2010. Morphological characterization of adults of Orbigny’s slider Trachemys dorbignyi (Duméril & Bibron 1835) (Testudines Emydidae) in southern Brazil. Tropical Zoology 23(2):1-14., 2016Bager, A.; Lucas, P. S.; Costa, A.; Lima, J. C. & Silveira, L. S. 2016. Geographical variation in the morphology and sexual dimorphism of Acanthochelys spixii (Testudines, Chelidae) in Brazil. Tropical Zoology 29(2):76-86.) |
Maximum bridge length - MBL**
|
McCord et al. (2001McCord, W. P.; Joseph-Ouni, M. & Lamar, W. W. 2001. Taxonomic reevaluation of Phrynops (Testudines: Chelidae) with the description of two new genera and a new species of Batrachemys. Revista de Biologia Tropical 49(2):715-764.), Bager et al. (2010Bager, A.; Freitas, T. R. O. & Krause, L. 2010. Morphological characterization of adults of Orbigny’s slider Trachemys dorbignyi (Duméril & Bibron 1835) (Testudines Emydidae) in southern Brazil. Tropical Zoology 23(2):1-14., 2016Bager, A.; Lucas, P. S.; Costa, A.; Lima, J. C. & Silveira, L. S. 2016. Geographical variation in the morphology and sexual dimorphism of Acanthochelys spixii (Testudines, Chelidae) in Brazil. Tropical Zoology 29(2):76-86.) |
Minimum bridge length - MBL2**
|
Bour & Zaher (2005Bour, R. & Zaher, H. 2005. A new species of Mesoclemmys, from the open formations of Northeastern Brazil (Chelonii, Chelidae). Papéis Avulsos de Zoologia 45(24):295-311.) |
Left anal scute width - ANSW**
|
Bager et al. (2016Bager, A.; Lucas, P. S.; Costa, A.; Lima, J. C. & Silveira, L. S. 2016. Geographical variation in the morphology and sexual dimorphism of Acanthochelys spixii (Testudines, Chelidae) in Brazil. Tropical Zoology 29(2):76-86.) |
Left anal scute length - ANSL**
|
Bager et al. (2010Bager, A.; Freitas, T. R. O. & Krause, L. 2010. Morphological characterization of adults of Orbigny’s slider Trachemys dorbignyi (Duméril & Bibron 1835) (Testudines Emydidae) in southern Brazil. Tropical Zoology 23(2):1-14., 2016Bager, A.; Lucas, P. S.; Costa, A.; Lima, J. C. & Silveira, L. S. 2016. Geographical variation in the morphology and sexual dimorphism of Acanthochelys spixii (Testudines, Chelidae) in Brazil. Tropical Zoology 29(2):76-86.) |
Internal diagonal of anal scute - IDS**
|
This study |
Carapace anal plastron terminal distance - CPD**
|
Bager et al. (2010Bager, A.; Freitas, T. R. O. & Krause, L. 2010. Morphological characterization of adults of Orbigny’s slider Trachemys dorbignyi (Duméril & Bibron 1835) (Testudines Emydidae) in southern Brazil. Tropical Zoology 23(2):1-14., 2016Bager, A.; Lucas, P. S.; Costa, A.; Lima, J. C. & Silveira, L. S. 2016. Geographical variation in the morphology and sexual dimorphism of Acanthochelys spixii (Testudines, Chelidae) in Brazil. Tropical Zoology 29(2):76-86.) |
Precloacal length - PCL*
|
Dustman (2013Dustman, E. 2013. Sex identification in the Common Snapping turtle (Chelydra serpentina): a new technique and evaluation of previous methods. Herpetological Review 44:235-238.) |
Tail length - TL*
|
Ernst (1971Ernst, C. H. 1971. Sexual cycles and maturity of the turtle, Chrysemys picta. The Biological Bulletin 140(2):191-200.) |