. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. Notes on Dragon-flies (Odonata) of the Cape. 191 A noticeable feature of the gills in comparison with those of Agrionid nymphs is the flattening of the "pedicel," so as to form part of the gill lamella. At first sight the gill appears to be 2-jointed or nodate. But these basal portions correspond with the chitinous rings which support the gills in Agrionid nymphs, and are really the remnants of the Xlth segment (see Tillyard, 1917, Biol. Dragonfl.,. Please note that these images are ex
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. Notes on Dragon-flies (Odonata) of the Cape. 191 A noticeable feature of the gills in comparison with those of Agrionid nymphs is the flattening of the "pedicel," so as to form part of the gill lamella. At first sight the gill appears to be 2-jointed or nodate. But these basal portions correspond with the chitinous rings which support the gills in Agrionid nymphs, and are really the remnants of the Xlth segment (see Tillyard, 1917, Biol. Dragonfl.,. 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
