A case of tetrophthalmia with unilateral synophthalmia in an unborn fetus of blue shark Prionace glauca (Carcharhiniformes, Carcharhinidae)

Autores/as

  • Víctor Pastén-Marambio Universidad Católica del Norte
  • Valentina Hevia-Hormazábal Universidad Católica del Norte
  • Enzo Acuña Universidad Católica del Norte
  • Alonso Vega Universidad Católica del Norte

DOI:

https://doi.org/10.22370/rbmo.2018.53.0.1251

Palabras clave:

Chondrichthyes, Orbital malformations, Conjoined twins, Bycatch, Embryogenesis

Resumen

This study describes and classifies a case of multiple malformations in an unborn blue shark Prionace glauca fetus, which was extracted from a gravid female captured during a research campaign addressed to the biological study of sharks in northern and central Chile. The analyzed specimen shows tetrophthalmia with unilateral synophthalmia, anomaly characterized by the existence of 4 ocular globes, two of which are partially fused. In addition, the axial skeleton of the fetus shows thoracic lordosis and helical torsion in the abdominal-caudal portion. This is the first world report of tetrophthalmia with unilateral synophthalmia in chondrichthyans.

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Publicado

2018-08-01

Cómo citar

Pastén-Marambio, V., Hevia-Hormazábal, V., Acuña, E., & Vega, A. (2018). A case of tetrophthalmia with unilateral synophthalmia in an unborn fetus of blue shark Prionace glauca (Carcharhiniformes, Carcharhinidae). Revista De Biología Marina Y Oceanografía, 53, 25–30. https://doi.org/10.22370/rbmo.2018.53.0.1251

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