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Updated: May 11, 2026

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RNA In situ Hybridization in Whole Mount Embryos and Cell Histology Adapted for Marine Elasmobranchs
Published on: April 12, 2013
First record of a bicephalic embryo of smalltail shark Carcharhinus porosus
L A Muñoz-Osorio1, P A Mejía-Falla, A F Navia
1Fundación Colombiana para la Investigación y Conservación de Tiburones y Rayas, SQUALUS, Carrera 79 No. 6-37, Cali, Colombia. lmunoz@squalus.org
Journal of Fish Biology
|May 4, 2013
Abstract:
This study reports the first bicephalic embryo of smalltail shark Carcharhinus porosus, which was removed from a pregnant female in coastal waters of the tropical eastern Pacific Ocean. The observation suggested that although the individual's body was well formed, the malformation of the head would have affected it survival.
