Fig. 4 in A general theory of genital homologies for the Hexapoda (Pancrustacea) derived from skeletomuscular correspondences, with emphasis on the Endopterygota

Fig. 4. Genital skeletomusculature of Corydalus sp. (Megaloptera: Corydalidae). A, genitalia, dorsal. B, genitalia in situ, ventral. C, D, genitalia, sternum and penial-leteropenital complex removed, mesal, D with part of left half removed. E, F, genitalia, sternum removed: E, mesal oblique; F, mesal. G, phallotreme and associated tissues. H, I, penial sclerite and lateropenite: H, ectal; I, mesal. J, left half of genitalia, anterior oblique. K, sternum, mesal oblique. L, left genital half, stylus, penis, and lateropenites removed, mesal. Abbreviations: An ¼ anus; Cace ¼ callus cercus; Ce ¼ cercus; Cxa ¼ gonocoxa; Lpe ¼ lateropenite; Pen ¼ penis; Penscl ¼ penial sclerite; Phtr ¼ phallotreme; Prct ¼ proctiger; StIX ¼ sternum IX; Sty ¼ stylus; Stystr ¼ stylar strut; TgIX ¼ tergum IX. Muscle abbreviations indicated in Table 1.