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Critical commentary reveals insufficient evidence of sequential hermaphroditism in deep-sea alfonsinos, highlighting the need for rigorous histological and anatomical diagnostic standards.
histological and anatomical criteria, sex change diagnosis The article of Cruz et al. (2025), reporting sequential hermaphroditism in two alfonsinos, Beryx splendens Lowe, 1834 and B. decadactylus Cuvier, 1829, raises serious concerns over the strength and nature of the evidence presented in support of such a diagnosis.
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Mitcheson et al. (2026) studied this question.
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