. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 18. 19 Figs. 18, 19.—Willeyia delagoensis n. sp. 18. Cross-section of the branchial region, composed of several sections, in order to show a tongue at one side and a septum at the other; in reality two tongues are opposite one another. The section is not through the middle of the tongue, showing the tongue coelom, but through the anterior or posterior end of the tongue and the septum in order to show the thick layer of crowded nuclei. x 20. 19. Cross-section of the posterior end of the branchial regi
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 18. 19 Figs. 18, 19.—Willeyia delagoensis n. sp. 18. Cross-section of the branchial region, composed of several sections, in order to show a tongue at one side and a septum at the other; in reality two tongues are opposite one another. The section is not through the middle of the tongue, showing the tongue coelom, but through the anterior or posterior end of the tongue and the septum in order to show the thick layer of crowded nuclei. x 20. 19. Cross-section of the posterior end of the branchial region. x 34. bp, branchial pore, bs, branchial sac. bt, tongue, dm, dorsal mesentery. dn, dorsal nerve cord, dv, dorsal blood-vessel, ebr, epibranchial ridge. g, gonad, gd, gonoduct. gp, genital pore. Im, longitudinal musculature. oes, oesophagus, ph, pharynx, rm, ring musculature, sl'g, sublateral groove, ss, septal skeletal bar. ts, tongue skeletal bar. vn, ventral nerve cord, vv, ventral Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original South African Museum. Cape Town : The Museum
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
