. African invertebrates : a journal of biodiversity research. Invertebrates -- Africa; Biological diversity -- Africa; Biological diversity. 286 CLAUDE FULLER. articulations, so that the elements fuse and a longer or shorter joint forms about different totals of elements. A pair of antennae is illustrated by fig. 12, a-aa, of which one is XVIII-jointed, and the other, owing to a (15 + 14) union, XYII-jointed. Another pair is illustrated by {h-hh), one of which is normally XVII, whilst the other is XV-jointed ; as between these two organs a considerable disparity will be noticed in joint III. W
. African invertebrates : a journal of biodiversity research. Invertebrates -- Africa; Biological diversity -- Africa; Biological diversity. 286 CLAUDE FULLER. articulations, so that the elements fuse and a longer or shorter joint forms about different totals of elements. A pair of antennae is illustrated by fig. 12, a-aa, of which one is XVIII-jointed, and the other, owing to a (15 + 14) union, XYII-jointed. Another pair is illustrated by {h-hh), one of which is normally XVII, whilst the other is XV-jointed ; as between these two organs a considerable disparity will be noticed in joint III. With a view to ascertaining whether any relationship existed between the length of III and the supposed number of Text-fig. ^ h Calotermes durbanensis Haviland. a, b. Imago, c-g. Soldier. h. In second instar. joint-elements it comprised the basal joints in the flagellum of four antennae were measured. The results are shown in the following table, the length units being micro-ocular divisions. The proportions are seen to be peculiarly i-egular, especially the 10, 14, 18 series. That III in the XIX expression is slightly out of proportion is due to the condition of the elements it represents. XIX III = 8 IV = 6 V = 6 VI = 8 VII = 8 1 1 VIII = 10 IX = 10 XVIII : 111 = 10 IV = 8 V = 8 VI = 8 VII = 10 VIII = 10 XVII III = 14 IV = 8 V = 8 1 1 VI = 10 VII = 10 XVI: III = 18 IV = 8 V = 10 VI = 10. 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 Natal Museum (Pietermaritzburg, South Africa). Council. Pietermaritzburg, South Africa : Council of the Natal Museum
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