tritosternum

English

Etymology

From trito- +‎ sternum.

Noun

tritosternum (plural tritosterna)

1. (arachnology) The sternite of the segment bearing the first pair of walking legs.

   Coordinate terms: tetrasternum, pentasternum

   • 2014 August 1, Ana Caroline O. Vasconcelos, Alessandro P. L. Giupponi, Rodrigo L. Ferreira, “A new species of Charinus from Minas Gerais State, Brazil, with comments on its sexual dimorphism (Arachnida: Amblypygi: Charinidae)”, in The Journal of Arachnology, volume 42, number 2, →DOI, page 156:

     Sternum (Fig. 3): Tri-segmented with all segments sclerotized and convex. Tritosternum projected anteriorly, elongated and cone-shaped, with a large variation in the pattern of strong setae: 1 apical (1 pair is usually found), 2 median (1 pair can be found or be absent), 3 basal (1 or 2 can be found), and several small setae along the segment.