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 ...

First catalog of Salticidae (Arachnidae, Araneae) from French Guiana, with the description of one new species

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First catalog of Salticidae (Arachnidae, Araneae) from French Guiana, with the description of one new species

A work of bibliographic synthesis and identification of collected material made possible to complete the knowledge concerning one of the best studied spider families of the neotropical region from a systematic point of view, namely the Salticidae Blackwall, 1841. This catalog lists the presence of 122 species as well as 68 morphospecies, belonging to 36 genera, making a total of 190 potential species. After argument based on the observation of type species or individuals, exchanges with data producers or even verification of data in the bibliography, the following species, 19 in number, are deleted from the list of Salticidae of French Guyana: Amycus ectipus (Simon, 1900), Amycus pertyi Simon, 1900, Anasaitis canosa (Walckenaer, 1837), Chira simoni (Galiano, 1961), Chirothecia crassipes (Taczanowski, 1878), Colonus germaini (Simon, 1900), Corythalia tropica (Mello-Leitão, 1939), Hypaeus miles Simon, 1900, Lyssomanes amazonicus G. W. Peckham, E. G. Peckham & Wheeler, 1889, Lyssomanes elegans (Cambridge, 1900), Lyssomanes parallelus (Peckham & Wheeler, 1889), Matinta fasciata (Mello-Leitão, 1940), Noegus bidens (Simon, 1900), Noegus petrusewiczi Caporiacco, 1947, Psecas bubo (Taczanowski, 1871), Sarinda atrata (Taczanowski, 1871), Scopocira melanops (Taczanowski, 1871), Rudra wagae (Taczanowski, 1871) and Viciria chabanaudi Fage, 1923. The mention of a species in Vedel et al. (2013), not recognized by the World Spider Catalog (2023), is also deleted: Salticus fulvatus (Fabricius, 1896). The following new synonymy is established: Amycus flavolineatus C. L. Koch, 1846 is a junior synonym of Colonus sylvanus (Hentz, 1846), n. syn. Amycus amrishi Makhan, 2006 and Neonella heliophanina (Taczanowski, 1871) are considered as nomina dubia. Pseudopartona ornata Caporiacco, 1954, type species of the genus Pseudopartona Caporiacco, 1954 , belongs to the genus Sassacus Sassacus G. W. Peckham & E. G. Peckham, 1895, which results in Pseudopartona being synonymised with Sassacus, and the following new combination Sassacus ornatus (Caporiacco, 1954) n. comb. Finally, 25 species are newly cited, including one newly described species: Eustiromastix agatheae Courtial & Picard n. sp. (male).

COURTIAL C., PICARD L. & PÉTILLON J. 2025. — Premier catalogue des Salticidae (Arachnidae, Araneae) de Guyane et description d’une nouvelle espèce. Zoosystema 48 (4): 75-120. https://doi.org/10.5252/zoosystema2026v48a4. http://zoosystema.com/48/4