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This study quantifies the morphometric relationship between total length (TL) and head length (HL) for a sample of 53 Mugger crocodiles (43–280 cm TL) in Iran. Across the size range of crocodiles sampled, the relationship was best described by a linear regression (TL= 15.52 + 6.283HL). The average TL/HL ratio was 7.034, which is similar to that reported for other crocodilian species and confirms its usefulness for estimating TL based on HL during population surveys.
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Abtin, E. & A. Mobaraki (2016). Gandou, Marsh Crocodile in Iran. Nashr-E-Talaie, Tehran, 144pp.
Britton, A., R. Whitaker & N. Whitaker (2012). Here be a dragon: exceptional size in a Saltwater Crocodile (Crocodylus porosus) from the Philippines. Herpetological Review 43(4): 541–546.
De Silva, A. & J. Lenin (2010). Mugger Crocodile Crocodylus palustris. pp. 94–98. In: Manolis, S.C. & C. Stevenson (eds.). Crocodiles. Status Survey and Conservation Action Plan. Third Edition. Crocodile Specialist Group, Australia.
Edwards, G.P., G.J. Webb, S.C. Manolis & A. Mazanov (2017). Morphometric analysis of the Australian freshwater crocodile (Crocodylus johnstoni). Australian Journal of Zoology 65(2): 97–111.
Fukuda, Y., K. Saalfeld, G. Lindner & T. Nichols (2013). Estimation of total length from head length of Saltwater Crocodiles (Crocodylus porosus) in the Northern Territory, Australia. Journal of Herpetology 47(1): 34–40.
Hutton, J.M. (1987). Morphometrics and field estimation of the size of the Nile crocodile. African Journal of Ecology 25: 225–230.
Magnusson, W.E. (1983). Size estimates of crocodilians. Journal of Herpetology 17(1): 86–88.
Mobaraki, A. (2015). Sustainable Management and Conservation of the Mugger Crocodile (Crocodylus palustris) in Iran. Msc thesis, International University of Andalusia, Spain, 58pp.
Mobaraki, A., M. Erfani, E. Abtin & F. Ataie (2019). Assessing habitat suitability of the mugger crocodile using maximum entropy. Environmental Sciences 16(4): 47–62.
Montague, J.J (1984). Morphometric analysis of Crocodylus novaeguineae from the Fly River Drainage, Papua New Guinea. Australian Wildlife Research 11(2): 395–414.
Platt, S.G., T.R. Rainwater, J.B. Thorbjarnarson & D. Martin (2011). Size estimation, morphometrics, sex ratio, sexual size dimorphism, and biomass of Crocodylus acutus in the coastal zone of Belize. Salamandra 47(4): 179–192.
Verdade, L.M. (2000). Regression equation between body and head measurement in the broad-snouted caiman (Caiman latirostris). Revista Brasileira de Biologia 60(3): 469–482.
Whitaker, R. & N. Whitaker (2008). Who’s got the biggest? Crocodile Specialist Group Newsletter 27(4): 26–30.
Webb, G.J.W. & H. Messel (1978). Morphometric analysis of Crocodylus porosus from the north coast of Arnhem Land, northern Australia. Australian Journal of Zoology 26: 1–27.
Webb, G. J. W., R. Buckworth, and S. C. Manolis (1983). Crocodylus johnstoni in the McKinlay River area, NT. III. Growth, movement and population age structure. Australian Wildlife Research 10: 383–401.
Wu, X.B., H. Xue, L.S. Wu, J.L. Zhu & R.P. Wang (2006). Regression analysis between body and head measurements of Chinese alligators (Alligator sinensis) in captive population. Animal Biodiversity and Conservation 29(1): 65–71.