NO. 2 THORACIC MECHANISM OF A GRASSHOPPER — SNODGRASS I3 



Sex- 



Fig. 9. — A body segment and leg of Lithohins (Chilopoda), left side. 



c, dorsal articular point of coxa ; Cx, coxa ; d, ventral articulation of coxa with 

 subcoxa; Fm, femur; Ptar, pretarsus ; S, sternum; Sex, subcoxa ; Sp, spiracle; 

 T, tergum; Tar, tarsus; Tb, tibia; iTr, first trochanter; 2Tr, second trochanter. 



Sex 



-iTr 



Fig. id. — The leg base of Scutigera forceps (Chilopoda). 



A, external view of base of a left leg and part of segment. B, internal view 

 of base of right leg, showing muscles. 



e, dorsal subcoxo-coxal articulation ; cpl, supra-coxal plate of subcoxa ; Cx, 

 coxa ; Fu, furca ; /, tergal promotor muscles ; /, tergal remoter muscle ; K, 

 sternal promotor ; L, sternal remoter ; M , subcoxo-coxal muscle ; N , sternal 

 adductor of coxa ; A^', furcal adductor of coxa ; Sex, subcoxa ; Stn, segmental 

 sternite; T, tergum; iTr, first trochanter. 



