Qualitative and Quantitative Proteomic Analysis of Venoms from Mexican Rattlesnakes

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  Qualitative and Quantitative Proteomic Analysis of Venoms from Mexican Rattlesnakes Abstract Despite the vast biodiversity of Mexican vipers, venom of endemic species has been barely studied. Here we analyzed the venom composition of three endemic species of rattlesnakes: Crotalus aquilus , C. triseriatus , and C. ravus . We used quantitative chromato-mass-spectrometry and compared venoms with C. molossus , a species commonly found in North America, in a comparative and phylogenetic framework. In total, we identified 165 proteins grouped in 19 main protein families, consistent with previous reports for viperid venoms. In C. aquilus and C. triseriatus , the most predominant protein-family type was Serine Proteases, and in C. triseriatus and C. molossus it was Snake Venom Metalloproteases. The Label-free quantification revealed a high proportion of Snake Venom Metalloproteases in C. aquilus , C. triseriatus , and C. molossus , reaching 28–47% of the total venom. In contrast, in ...

New records of the camel spider Antillotrecha iviei Armas, 2002 from Anguilla, Lesser Antilles (Solifugae: Ammotrechidae)

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New records of the camel spider Antillotrecha iviei Armas, 2002 from Anguilla, Lesser Antilles (Solifugae: Ammotrechidae)

Abstract
Antillotrecha iviei Armas, 2002, previously thought to be restricted to Sombrero Island, is confirmed to be present on Anguilla Island, based on material of both sexes collected by the senior author in early 2025. Adults of both sexes are described and illustrated, with comparison against previously reported material.

Sherwood, Danniella & De Armas, Luis & Mukhida, Farah & Connor, Rhon. (2025). New records of the camel spider Antillotrecha iviei Armas, 2002 from Anguilla, Lesser Antilles (Solifugae: Ammotrechidae). Revista Ibérica de Aracnología. 47. 139-142.