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: ...

Taxonomic Study of Eriovixia panigrahii (Araneae: Araneidae) from Kalahandi, Odisha, India

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Taxonomic Study of Eriovixia panigrahii (Araneae: Araneidae) from Kalahandi, Odisha, India

Abstract

Eriovixia Archer, 1951 is a genus of the spider family Araneidae Clerck, 1757, with 35 named species occurring three species in Africa and thirty two species in Asia.Four Eriovixia species were identified during our survey in the hilly area of Kalahandi, Odisha; three were identified as Eriovixia laglaizei, Eriovixia excelsa, and Eriovixia poonaensis and one was a new species. The new one was described as Eriovixia panigrahisis based on morphological characters and the COI mitochondrial gene sequence. But the species epithet was corrected from Eriovixia panigrahisis to Eriovixia panigrahii by the World Spider Catalog and treated as a “nomen nudum”, as the original description did not designate type specimens and lacked genitalia descriptions. This study presents the revised and complete taxonomic description of Eriovixia panigrahii, based on both male and female holotypes. The holotype and paratypes are clearly designated, and detailed observations of genital morphology are provided. Key diagnostic characters are described to support accurate identification of the species.

Subrat Kumar Panigrahi, Basudev Bag, Dibyaraj Haripal, Mitrabhanu Meher, Swagatika Rani Bariha, Smruti Ranjan Parida, Rajkumar Behera, and Sudhir Ranjan Choudhury. 2025. “Taxonomic Study of Eriovixia Panigrahii (Araneae: Araneidae) from Kalahandi, Odisha, India”. Annual Research & Review in Biology 40 (10):72–77. https://doi.org/10.9734/arrb/2025/v40i102322.