NO. II 



LEGS OF PRIMITIVE ARTHROPODS EWING 



39 



Prell, H. 



1912. Beitrage zur Kenntiiis der Proturen. III. Gliederung und eigne 



Muskulatur der Beine von Acerentomon und Eosentotnon. Zool. 

 Anz., Bd. xl, pp. 33-50, figs. i-ii. 



1913. Das Chitinskelett von Eosentomon, ein Beitrag zur Morphologic des 



Insektenkorpers. Zoologica, Bd. xxv, Heft 64, pp. 1-56, taf. i-vi. 



SiLVESTRI, F. 



1907. Descrizione di un novo genere d'insetti apterigoti rappresentante di 

 un novo ordine. Bol. Lab. Zool. Gen. e. Agr., Vol. i, pp. 296-311, 

 figs. 1-18. 

 Snodgrass, R. E. 



1925. Anatomy and Physiology of the Honeybee, t,2-] pp., 108 figs. 



McGraw-Hill Book Co. 

 1927. Morphology and Mechanism of the Insect Thorax. Smithsonian 

 Misc. Coll., Vol. 80, No. I, 108 pp.. 44 figs. 



S0RENSEN, W. 



1914. Recherches sur I'anatomie, exterieure et interieure, des Solifuges. 



Oversigt K. Danske Videnskab. Selsk., 1914, No. 3, pp. 131-215, 

 pis. i-ii. 

 Verhoeff, K. W. 



1903. Zur vergleichenden Morphologic der Coxalorgane und Genitalan- 

 hange der Tracheaten. Zool. Anz., Bd. xxvi, pp. 60-77, figs. 1-15. 



ABBREVIATIONS USED ON PLATES 



ac, anterior tarsal claw 



ant, antenna 



ap, co-xal, or trochantal appendage 



hs, basisternum 



cl, claw 



ex, coxa 



dc, depressor of coxa 



dt, depressor of trochanter 



evs, eversible sac 



extc, extensor of claws 



extf, extensor of femur 



exit, extensor of tibia 



extp, extensor of patella 



je, femur 



He, flexor of claw 



Hj, flexor of femur 



Up, flexor of patella 



at, flexor of tarsus 



Hth, flexor of tibia 



h, head 



intl, intersegmental lobe of neck 



/.leg 



//, leg I 



lap, lateral apodeme 



Ic, levator of coxa 



U, laterosternum 



It, levator of trochanter 



map, median apodeme 



pat, patella 



pc, posterior tarsal claw 



pip, pleural plate 



prec, precosta 



pt, pretarsus 



re, rotator of coxa 



rt, rotator of trochanter 



s, sternum 



si, first body segment 



sex, subcoxa 



si, sternellum 



sp, spiracle 



sps, specialized seta 



stn, sternite 



ta, tarsus 



terg, tergite 



thi, prothorax 



tx, tibia 



tr, trochanter 



trl, first trochanter 



trll, second trochanter 



un, unguiculus 



utr, unguitractor plate 



X, Y-shaped sternal ridge 



\\ sternal rod 



