Archive image from page 385 of Discovery reports (1934) Discovery reports discoveryreports08inst Year: 1934 Fig. 8. Sensory area - of leg I of female. Fig. 9. Peritrematal plate, stigma and tracheae of female. in relation to the peritrematal plate is seen in Fig. ()b; Fig. 9 was drawn from a pre- paration in which, as frequently happens, the stigma has been twisted out of position. Tracheae dividing into seven branches, three curving round anteriorly and four posteriorly. Lying a little distance in from the peritrematal plate is a duct, the proximal portion closely coiled, the distal portion
Archive image from page 385 of Discovery reports (1934) Discovery reports discoveryreports08inst Year: 1934 Fig. 8. Sensory area - of leg I of female. Fig. 9. Peritrematal plate, stigma and tracheae of female. in relation to the peritrematal plate is seen in Fig. ()b; Fig. 9 was drawn from a pre- paration in which, as frequently happens, the stigma has been twisted out of position. Tracheae dividing into seven branches, three curving round anteriorly and four posteriorly. Lying a little distance in from the peritrematal plate is a duct, the proximal portion closely coiled, the distal portion free. In some preparations the free portion of the duct runs straight back to the region of the fourth coxae, in others the duct stretches across towards the genital Hp, and in the preparation figured the duct curves back over two of the tracheal trunks. What the function of this duct is I do not know. Male (Fig. 10). Smaller than the female, podosoma more rounded, opisthosoma more slender. Dorsal, lateral and anal plates as in female. Tritosternum absent. Sternal plate extending from the anterior border of coxae II to middle of coxae IV. General form somewhat elongate heart-shaped, anterior margin bilobate. Genital aperture in middle of anterior margin. Penis highly chitinized. Chelicera (Fig. 12) a strong, stout appendage; first article broader than long, second article one and a quarter times longer
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Photo credit: © Bookend / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: archive, book, drawing, historical, history, illustration, image, page, picture, print, reference, vintage
