Distinct pathophysiological mechanisms of Heterometrus laoticus and Lychas mucronatus scorpion venoms on cardiovascular and renal functions

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  Distinct pathophysiological mechanisms of Heterometrus laoticus and Lychas mucronatus scorpion venoms on cardiovascular and renal functions Abstract Background:    Heterometrus laoticus and Lychas mucronatus are widely distributed in Southeast Asia, yet their pathophysiological effects of both venoms remain poorly characterized due to low human fatality rates. This study compared their venom compositions and acute cardiovascular and renal effects. Methods:   Anesthetized male New Zealand White rabbits were monitored for blood pressure (BP), heart rate (HR), and renal clearance following intravenous administration of crude venom (0.5 mg/kg). Venom components were identified via LC-MS/MS, and hematological/biochemical parameters were assessed. Results:    H. laoticus venom induced a rapid, transient hypotension ( p < 0.05), followed by a mild, prolonged hypotensive phase (up to 120 min). Conversely, L. mucronatus venom elicited a biphasic response: ...

On the validity of Glabropelmatidae Raven, 1985 (Araneae: Mygalomorphae): a replacement name for Melloinidae Perafán, Montes de Oca and Pérez-Miles, 2025

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On the validity of Glabropelmatidae Raven, 1985 (Araneae: Mygalomorphae): a replacement name for Melloinidae Perafán, Montes de Oca and Pérez-Miles, 2025

ABSTRACT

The family name Melloinidae Perafán, Montes de Oca and PérezMiles, 2025 proposed for the mygalomorph genus Melloina Brignoli, 1985 is invalid. Reexamination of the International Code of Zoological Nomenclature (ICZN) confirms that Glabropelmatinae Raven, 1985 holds priority, as it was correctly established when the type species was under Glabropelma Raven, 1985. Consequently, the family name Glabropelmatidae Raven, 1985 is valid.

Perafán, C., Montes de Oca, L., & Pérez-Miles, F. (2026). On the validity of Glabropelmatidae Raven, 1985 (Araneae: Mygalomorphae): a replacement name for Melloinidae Perafán, Montes de Oca and Pérez-Miles, 2025. Journal of Natural History, 60(21–24), 1239–1241. https://doi.org/10.1080/00222933.2026.2661983