. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. ANNALS OF THE SOUTH AFRICAN MUSEUM. Fig. 5. Aplidium circulatum. A. Entire zooid. B. Thorax, abdomen and anterior part of the post-abdomen. C. Thorax and abdomen of a brooding zooid. D. Siphons of another zooid. E. Detail of the stomach. F. Larva. Aplidium circulatum and A. flavolineatum are indeed very closely allied. They have in common circular systems, the same tunic consistency and shape of the zooids, the cloacal siphon in a short tube, and an average of 12 rows of stigmata. The differences are
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. ANNALS OF THE SOUTH AFRICAN MUSEUM. Fig. 5. Aplidium circulatum. A. Entire zooid. B. Thorax, abdomen and anterior part of the post-abdomen. C. Thorax and abdomen of a brooding zooid. D. Siphons of another zooid. E. Detail of the stomach. F. Larva. Aplidium circulatum and A. flavolineatum are indeed very closely allied. They have in common circular systems, the same tunic consistency and shape of the zooids, the cloacal siphon in a short tube, and an average of 12 rows of stigmata. The differences are that A. circulatum has pedunculate colonies and different larvae of a larger size and with fewer anterior vesicles. We have also not found in this species the dark pigment cells found in the zooid tissues of A. 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
