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 ...

Redescription of Damastes leo (Simon, 1903), comb. nov. (Araneae, Sparassidae) from Madagascar with first description of the male

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Redescription of Damastes leo (Simon, 1903), comb. nov. (Araneae, Sparassidae) from Madagascar with first description of the male

Abstract

Damastes leo (Simon, 1903), comb. nov. (ex Megaloremmius) female is redescribed and the male is described for the first time. The species is endemic to Madagascar, and its range appears to be limited to remnants of the rainforest. The first COI record for the species is presented, and its distribution is analysed in detail using iNaturalist data.

Uharov I, Wiśniewski K, Trębicki Ł, Jäger P (2026) Redescription of Damastes leo (Simon, 1903), comb. nov. (Araneae, Sparassidae) from Madagascar with first description of the male. ZooKeys 1282: 287-303. https://doi.org/10.3897/zookeys.1282.192182