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 ...

Country roads, take me home: Cyclocosmia johndenveri, a new species of trapdoor spider from the mountains of West Virginia (Araneae: Halonoproctidae)

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Country roads, take me home: Cyclocosmia johndenveri, a new species of trapdoor spider from the mountains of West Virginia (Araneae: Halonoproctidae)

Abstract
A new species of the enigmatic trapdoor spider genus Cyclocosmia Ausserer, 1871 is described from West Virginia, United States of America. Cyclocosmia johndenveri sp. nov. represents a significant northeasterly range extension for the genus and is described based on the male. 

Sherwood, Danniella. (2025). Country roads, take me home: Cyclocosmia johndenveri, a new species of trapdoor spider from the mountains of West Virginia (Araneae: Halonoproctidae). Natura Somogyiensis. 45. 27-40. 10.24394/NatSom.2025.45.27. 

Special thanks to Danni Sherwood for providing this paper via ResearchGate