Differential Hematotoxic Activity of Southeast Asian Pit Viper Venoms: The Cross-Neutralizing Effect of Available Antivenoms

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  Image Credit: Creative Commons (some rights reserved) CC BY-NC Photo 111998430, (c) Nicholas Hess Differential Hematotoxic Activity of Southeast Asian Pit Viper Venoms: The Cross-Neutralizing Effect of Available Antivenoms Abstract Background/Objectives : Pit vipers (subfamily Crotalinae) are responsible for a large proportion of snakebite envenoming cases in Southeast Asia. Envenomation by these snakes commonly causes hematotoxic effects, including platelet dysfunction and coagulation disturbances. Although antivenom remains the mainstay of treatment, species-specific antivenoms are not available for several regional pit viper species. This study evaluated the hematotoxic activities of selected Southeast Asian pit viper venoms and the cross-neutralizing capacity of commercially available antivenoms.  Methods : Venoms from five medically important pit viper species— Calloselasma rhodostoma ,  Trimeresurus albolabris ,  T. hageni ,  T. purpureomaculatus , ...

Revision of the huntsman spider genus Micrommata Latreille, 1804 (Sparassidae: Sparassinae)

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Revision of the huntsman spider genus Micrommata Latreille, 1804 (Sparassidae: Sparassinae)

Abstract The genus Micrommata Latreille, 1804 is revised and two new species are described: Micrommata biggi spec. nov. (male, female; Türkiye, Armenia, Iran, Turkmenistan), and M. diesenhoff spec. nov. (male, female; Sierra Leone). Micrommata aragonensis Urones, 2004 is synonymised with M. formosa Pavesi, 1878. All known species are redescribed and illustrated, and an identification key for males and females is provided for all true Micrommata species. A distribution map is provided for all species. M. formosa is for the first time recorded from Portugal, M. ligurina (C.L. Koch, 1845) from Morocco, the latter species having been introduced into United Kingdom and Germany. Micrommata darlingi Pocock, 1901 (female; Zimbabwe) is considered misplaced and probably related to the genus Eusparassus Simon, 1903. Functional copulatory mechanics are briefly discussed using µ-CT scans.

Jäger, P. (2023). Revision of the huntsman spider genus Micrommata Latreille, 1804 (Sparassidae: Sparassinae). Zootaxa 5352(1): 1-45. doi:10.11646/zootaxa.5352.1.1