. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 226 ANNALS OF THE SOUTH AFRICAN MUSEUM Living: Liideritzbucht, Buffels River (south of Port Nolloth) to Saldanha Bay; and Cape Hangklip to Gape Agulhas (). Remarks. A fine intermediary lira may be present between the ist and 2nd, the 2nd and 3rd, and the 4th and 5th lirae, and between the lowest lira and the outermost basal lira, as well as between the 3rd and 4th; but not all concomit- antly are present in one shell. Bartsch's gloriosa appears to be merely a strongly granulate variation; there
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 226 ANNALS OF THE SOUTH AFRICAN MUSEUM Living: Liideritzbucht, Buffels River (south of Port Nolloth) to Saldanha Bay; and Cape Hangklip to Gape Agulhas (). Remarks. A fine intermediary lira may be present between the ist and 2nd, the 2nd and 3rd, and the 4th and 5th lirae, and between the lowest lira and the outermost basal lira, as well as between the 3rd and 4th; but not all concomit- antly are present in one shell. Bartsch's gloriosa appears to be merely a strongly granulate variation; there are two similar specimens among the Cove Rock set. Turton's formosa has intermediaries. Turton's photo of eucosmia has been badly Fig. 8. Cynisca granulosa (Krss.) a, radula plates, with section of central plate; b, portion ot operculum. Cynisca sp. juv. c, d, apical and lateral views (no. A6566). Cynisca granulosa (Krss.) e, lateral view of juvenile. Leptothyra atomus Turton/, g, lateral and oblique basal views. Liotia sp. h, it lateral and apical views (no. A9280). It is clear that Krauss figured the immature shell with open umbilicus, whereas Bartsch's figure of Gould's cotype shows the fully adult non-perforate shell. C. semiclausa is the half-way stage. Sowerby (1889&, p. 152) remarked on the umbilicus being open or closed. Worn adult shells often appear to be perforate because the parietal callus is thin and easily broken away. Thiele suggested that his semiclausa might be the same as L. africana, and considered it to be 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
