Morphological characterization of the venom apparatus in the wolf spider Lycosa singoriensis (Laxmann, 1770)

• Published in: Journal of Venomous Animals and Toxins including Tropical Diseases
• Main Authors: N Yigit, A Bayram, T Danisman, Z Sancak, MG Tel
• Format: Article in Journal/Newspaper
• Language: English
• Published: SciELO 2009
• Subjects: spider; Lycosa singoriensis; chelicerae; venom gland; morphology; Arctic medicine. Tropical medicine; RC955-962; Toxicology. Poisons; RA1190-1270; Zoology; QL1-991; Arctic; Fang; The Fang; Fang The
• Online Access: https://doi.org/10.1590/S1678-91992009000100013; https://doaj.org/article/fbdb8471064f4f94906d1b1bd724bd80

The wolf spider Lycosa singoriensis (Laxmann, 1770) (Lycosidae: Araneae) is distributed throughout central and eastern Europe, including Russia, Kazakhistan and Turkey. This study describes the venom apparatus morphology of L. singoriensis through scanning electron microscopy (SEM). Its structure follows the general architecture observed in other spiders. Generally, a venom apparatus is composed by a pair of venom glands and chelicerae. L. singoriensis chelicerae are robust and consist of a stout basis and a movable apical segment (fang). The fang rests in a groove on the basal segment that is covered by different types of hair. L. singoriensis venom glands present equal size and measure about 4 mm in length. Each gland is enclosed by irregular muscular layers.