. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 130 ANNALS OF THE SOUTH AFRICAN MUSEUM but the parietal callus forms a ring 'behind the posterior margin of each whorl', which it does not in annulata. Moreover annulata has not been recorded from the west coast. Bullia tenuis Gray Figs. 25(6), 26, 27(g) 1828. Wood. Suppl. Index Test., p. 12 (nom et fig.). 1839. Gray. J?ool. of the 'Blossom'', p. 128. 1903. Von Martens. D. Tie/see Exp., vii, p. 29. ? 1915. Bartsch. Bull. Nat. Mus., 91, p. 53, pi. 38, fig. 3 (lara). 1932. Turton. Mar. Sh. Pt. Alf
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 130 ANNALS OF THE SOUTH AFRICAN MUSEUM but the parietal callus forms a ring 'behind the posterior margin of each whorl', which it does not in annulata. Moreover annulata has not been recorded from the west coast. Bullia tenuis Gray Figs. 25(6), 26, 27(g) 1828. Wood. Suppl. Index Test., p. 12 (nom et fig.). 1839. Gray. J?ool. of the 'Blossom'', p. 128. 1903. Von Martens. D. Tie/see Exp., vii, p. 29. ? 1915. Bartsch. Bull. Nat. Mus., 91, p. 53, pi. 38, fig. 3 (lara). 1932. Turton. Mar. Sh. Pt. Alfred, p. 61 and p. 61 (lara). Aperture a little longer than spire (juv. 4 mm.), subequal to spire (c. 12 mm. shells), and a little less than spire (ij times in spire) in larger shells. Apical whorl (protoconch) diam. o-8-1 mm. Whorls (total) 8. Parietal callus on 3rd whorl extending J of whorl above suture forming a prominent costa, less prominent on 4th whorl, and from 5th or 6th onwards forming only a thin glaze extending J-J length of preceding whorl. On 4th and following whorls spiral striae over whole whorl, stronger at top and bottom, on later whorls (3) 4-5 at top and 4-5 at bottom persist but striae obsolescent on peripheral area, the striae at top closer together than those below, 8 additional striae on base. Columella glaze thin but extending over whole base and rostrum. 60 X 28 mm., smallest examined (beach-worn) 4 X 2-75 mm. Operculum very small, oval or slightly triangularly ovoid, 4-5 X 2-5 mm. in shell 60 mm. with 28 mm. aperture. Cream or ochraceous, proto- conch and apical whorls often with a livery tinge; operculum amber. Foot with antero-lateral corners very shortly pointed, posterior tails small, no eyes. Radula with 75-85 rows, central plate \\ times as wide as lateral plate, its base 3—3^ times as wide as long, with 9 cusps and a denticle externally on one or both sides; lateral plate with inner cusp bifurcate, outer prong with 1-3 denticles or serrulatio
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
