Morphological variation in Basiliscus basiliscus (Reptilia: Squamata: Corytophanidae)

  • Greimary Fuenmayor Laboratorio de Taxidermia y preparados anatómicos “Ramón de Jesús Acosta”. Centro de Investigaciones Biológicas. Facultad de Humanidades y Educación. Universidad del Zulia, Apartado 526, Maracaibo 4001-A, estado Zulia, Venezuela. https://orcid.org/0000-0001-5845-8805
  • Ángel Cardozo Laboratorio de Taxidermia y preparados anatómicos “Ramón de Jesús Acosta”. Centro de Investigaciones Biológicas. Facultad de Humanidades y Educación. Universidad del Zulia, Apartado 526, Maracaibo 4001-A, estado Zulia, Venezuela. https://orcid.org/0000-0003-0152-2444
  • Margareth Voelger Laboratorio de Taxidermia y preparados anatómicos “Ramón de Jesús Acosta”. Centro de Investigaciones Biológicas. Facultad de Humanidades y Educación. Universidad del Zulia, Apartado 526, Maracaibo 4001-A, estado Zulia, Venezuela. https://orcid.org/0009-0004-5819-2524
Keywords: Traditional morphometrics, Basiliscus basiliscus, morphological variation

Abstract

The morphological study of the species Basiliscus basiliscus is essential for Zoology, as it has become evident that little information is available; for this reason, a study on traditional morphometry was conducted, with the objective of comparing the external morphological characteristics of 17 female and 6 male specimens, for a total of 23 individuals, from the municipalities of Perijá and Mara in the state of Zulia, Venezuela. Eleven characters were studied, which were measured with a vernier caliper with an accuracy of 0.05 mm. The morphometric analysis was performed using the statistical program PAST-Paleontological Statistics to calculate the mean, standard deviation, coefficient of variation, minimum, and maximum of each of the variables. Males obtained higher numerical values in the measurement of morphological characters; likewise, they had larger body sizes than females, which is consistent with research on other lizards. In general, the traits that varied the most were: total length, left hind limb length, and tail length; whereas those that varied the least were represented by the internasal and interorbital distances. It is worth noting that females exhibited a higher coefficient of variation in most traits, showing greater variability; a fact attributed to a larger number of individuals compared to males. It is important to continue researching this little-known species in order to gain a deeper understanding of its biological, ecological, morphological, histological characteristics, among others.

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References

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Published
2026-03-31
How to Cite
Fuenmayor , G., Cardozo, Ángel, & Voelger, M. (2026). Morphological variation in Basiliscus basiliscus (Reptilia: Squamata: Corytophanidae). Boletín Del Centro De Investigaciones Biológicas, 59(2), 123-133. https://doi.org/10.5281/zenodo.19349727