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 ...

Studies on spider nomenclature V: the taxonomic status of Drassus maillardii Vinson, 1863, with two new synonymies, a neotype, new combinations and a new genus (Araneae: Gnaphosidae)

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Studies on spider nomenclature V: the taxonomic status of Drassus maillardii Vinson, 1863, with two new synonymies, a neotype, new combinations and a new genus (Araneae: Gnaphosidae)

Abstract
A new gnaphosid genus, Sorkinius gen. nov., is described to house divergent species from East Africa, Réunion and the Seychelles. A neotype is designated for the type species, Sorkinius maillardii comb. nov. et stat. rev., formerly described as Dras sus maillardii Vinson, 1863 and previously considered a nomen dubium since 1955. Xerophaeus espoir Platnick, 1981 syn. nov. and Xerophaeus oceanicus Schmidt & Jocqué, 1983 syn. nov. are both proposed as junior synonyms of S. maillardii comb. nov. Sorkinius kibonotensis Tullgren, 1910 comb. nov. et stat. rev. is transferred to the new genus and elevated to species level from its previous parent species Xerophaeus coruscus L. Koch, 1875, with notes on its history. Sorkinius coruscus comb. nov. is itself treated as a valid and distinct species.

Sherwood, Danniella & Jocqué, Rudy & Cazanove, Grégory & Derepas, Brice. (2025). Studies on spider nomenclature V: the taxonomic status of Drassus maillardii Vinson, 1863, with two new synonymies, a neotype, new combinations and a new genus (Araneae: Gnaphosidae). Revista Ibérica de Aracnología. 47. 9-18.