. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. Fig. 8. Hymenosoma orbiculare Desm. Left: first zoea stage; right: last zoea stage. As in Cyclograpsus punctatus (Broekhuysen, 1941) it is the first zoea stage which escapes from the female abdomen (fig. 8, left). During the period May 1947 to the first week of January 1948 a total of 323 egg-batches of berried females were examined and the stage of development of the embryos recorded. The results are given in Table IX. Individual variation in the development of one batch was slight and this was also


. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. Fig. 8. Hymenosoma orbiculare Desm. Left: first zoea stage; right: last zoea stage. As in Cyclograpsus punctatus (Broekhuysen, 1941) it is the first zoea stage which escapes from the female abdomen (fig. 8, left). During the period May 1947 to the first week of January 1948 a total of 323 egg-batches of berried females were examined and the stage of development of the embryos recorded. The results are given in Table IX. Individual variation in the development of one batch was slight and this was also found to be the case in other marine crabs (Broekhuysen, 1936, 1941). The duration of each stage was not the same and the laboratory experiments showed that the duration from stage I to beginning of stage IV was approximately the same as from stage IV to beginning of VII and stage VII to IX. In text- figure 9 stages I to III have been lumped together and the same has been done for IV to VII and VII to 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