Dimensions of venom gland of largest venom glands in all spiders

Range ≤10.4 × 2.7 mm mm
Organism Spider (family Ctenidae) genus Phoneutria
Reference Mammola S, Michalik P, Hebets EA, Isaia M. Record breaking achievements by spiders and the scientists who study them. PeerJ. 2017 Oct 315:e3972. doi: 10.7717/peerj.3972 p.18 top paragraphPubMed ID29104823
Primary Source Guinness World Records (GWR). 2017. The Guinness World Records. Available at link guinnessworldrecords.com (accessed 4 October 2017).
Comments P.17 bottom paragraph: "Largest relative venom glands—Filistatidae and Plectreuridae. Based on the comparative studies by [ref Millot (1949b)], two main venom gland organisations can be distinguished—cylindrical and multilobular glands. Cylindrical glands can be short as in Mesothelae and most orthognath spiders, but can extend far into the prosoma as in most araneomorph spiders. According to the [primary source], the absolute largest venom glands are those of the wandering spiders of the South American genus Phoneutria (Ctenidae), measuring up to 10.4 × 2.7 mm (see also “Most venomous to humans”)."
Entered by Uri M
ID 116183