Ménez A, Zimmerman K, Zimmerman S, Heatwole H
Department of Zoology, University of New England, Armidale, New South Wales, Australia.
J Morphol. 1990 Dec;206(3):303-12. doi: 10.1002/jmor.1052060307.
The venom apparatus of Ethmostigmus rubripes, a generalized predator, consists of the telopodites of the postcephalic segment, the basal article of w which contains the venom gland. Within the gland, venom granules are concentrated in intracellular secretory granules, from which they are discharged into vacuoles in the cytoplasm of the secretory cells and thereafter by exocytosis into the lumen of the gland. A venom duct carries venom to the venom claw, which introduces it into prey via a subterminal pore on the outer curvature of the claw. Pits containing pegs, presumed to be sensory, are concentrated near grooves leading to a cutting ridge proximal to the point of the claw. The venom is toxic both to mammals and insects.
红螯蛛(一种常见的捕食性蜘蛛)的毒液器官由头后部体节的末节肢体以及包含毒腺的基部节段组成。在毒腺内,毒液颗粒集中在细胞内分泌颗粒中,随后从这些颗粒释放到分泌细胞的细胞质中的液泡中,然后通过胞吐作用进入腺体腔。一条毒液导管将毒液输送到毒爪,毒爪通过爪外曲面上的一个亚末端孔将毒液注入猎物。含有小钉的凹坑(推测具有感觉功能)集中在通向爪尖近端切割脊的凹槽附近。这种毒液对哺乳动物和昆虫都有毒性。