Morphometric analysis of crocodylus porosus from the north coast of arnhem land northern australia
@article{Messel1978MorphometricAO,
title={Morphometric analysis of crocodylus porosus from the north coast of arnhem land northern australia},
author={Harry Messel},
journal={Australian Journal of Zoology},
year={1978},
volume={26},
pages={1-27}
}Utilizing measurements from 1354 C. porosus, we have derived formulae for predicting snout-vent length from 17 other attributes. The specific problem of predicting body size from an isolated head or skull is treated separately and some data are presented on proportional tissue loss in skull preparation. Sexual dimorphism was examined, and is demonstrated in interocular width, the width at the midpoint of the cranial platform, and the length of the tail. Discriminant analysis has been used to…
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14 References
The nesting of crocodylus porosus in arnhem land northern australia
- Environmental Science
- 1977
This chapter discusses the role of food as a limited resource in competition between two species of terrestrial salamanders in the distribution of these animals in the wild.
Biology of the Reptilia
- Biology, Environmental Science
- 1969
Why Study Reptilian Development? The Origin and Development of Oocytes Embryology of Turtles Embryology of Marine Turtles Development of Crocodilians Embryology of the Tuatara Some Developmental…
Statistical Methods in Biology
- Biology, Mathematics
- 1959
Statistical Methods in Biology. By Norman T. J. Bailey, M.A., D.Sc., 1959. London: The English Universities Press, Limited. 8½″ × 5½″, pp. 212. Price: 46s. 6d.
On the Maximum Total Length of the Salt-Water Crocodile (Crocodylus porosus)
- Environmental Science
- 1974
The Marine Crocodile, Crocodylus porosus, from Ponape, Eastern Caroline Islands, with Notes on Food Habits of Crocodiles from the Palau Archipelago
- Environmental Science
- 1974