Variación del patrón de escutelación nucal del cocodrilo americano (Crocodylus acutus cuvier 1807) en la Ventanilla, Oaxaca, México

Jesús García-Grajales; Alejandra Buenrostro Silva; Penélope R. Téllez-Rodríguez

doi:10.21829/azm.2009.252643

Variation of nucal scutellation pattern of American crocodile (Crocodylus acutus Cuvier 1807) in La Ventanilla, Oaxaca, Mexico.

Authors

Jesús García-Grajales Instituto de Recursos, Universidad del Mar, campus Puerto Escondido, Km 2.5, carretera a Sola deVega, San Pedro Mixtepec 71980, Oaxaca, MÉXICO.
Alejandra Buenrostro Silva Instituto de Industrias, Universidad del Mar, campus Puerto Escondido, Km 2.5, carretera a Sola deVega, San Pedro Mixtepec 71980, Oaxaca, MÉXICO.
Penélope R. Téllez-Rodríguez Licenciatura en Biología Marina, Universidad del Mar campus Puerto Ángel.Ciudad Universitaria, Km. 1.5, Carr. Puerto Ángel–Zipolite, Puerto Ángel 70902,Distrito de San Pedro Pochutla, Oaxaca, MÉXICO.

DOI:

https://doi.org/10.21829/azm.2009.252643

Keywords:

Crocodylus acutus, scutellation pattern, morphology, scales.

Abstract

The post-occipital and nucal scutellation patterns of 111 crocodiles (Crocodylus acutus) from La Ventanilla, Oaxaca were analyzed. Thirty three different scutellation patterns were found. The most frequently observed pattern (31.5%) was 4 post-occipital scales present 2 external previous nucal scales absent, and 2 posterior nucal scales present (4-2EE-2). The pattern considered typical for this species was observed only in 6.31% of individuals. There were differences between the frequency distribution of common patterns when compared to other studies on C. acutus.

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Published

10-08-2009

How to Cite

García-Grajales, J., Buenrostro Silva, A., & Téllez-Rodríguez, P. R. (2009). Variation of nucal scutellation pattern of American crocodile (Crocodylus acutus Cuvier 1807) in La Ventanilla, Oaxaca, Mexico. ACTA ZOOLÓGICA MEXICANA (N.S.), 25(2), 375–382. https://doi.org/10.21829/azm.2009.252643