. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 176 ANNALS OF THE SOUTH AFRICAN MUSEUM Pyrene pura (von Martens) Fig- 35W 1903. Von Martens. D. Tie/see Exp., vii, p. 25, pi. 2, fig. 14 (Euthria p.). 1925. Thiele. ibid., xvii, p. 173, pi. 30 (18), fig. 21 (Columbella helena). 1925. id. ibid., p. 180 (Euthria p.). Protoconch 2 whorls, alt. and diam. 1 mm., smooth (but all specimens worn). Postnatal whorls 5; spire subtending an angle of 350, profile of whorls gently convex. Growth-lines but no axial sculpture. Fine spiral striae over the greater par
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 176 ANNALS OF THE SOUTH AFRICAN MUSEUM Pyrene pura (von Martens) Fig- 35W 1903. Von Martens. D. Tie/see Exp., vii, p. 25, pi. 2, fig. 14 (Euthria p.). 1925. Thiele. ibid., xvii, p. 173, pi. 30 (18), fig. 21 (Columbella helena). 1925. id. ibid., p. 180 (Euthria p.). Protoconch 2 whorls, alt. and diam. 1 mm., smooth (but all specimens worn). Postnatal whorls 5; spire subtending an angle of 350, profile of whorls gently convex. Growth-lines but no axial sculpture. Fine spiral striae over the greater part of whorl, but (in the present more or less corroded specimens) variable, when traceable c. 8 on 3rd whorl, increasing to c. 12 on 5th; additional striae on base c. 20 (scarcely traceable on rostrum). Outer lip thickened. Periostracum thin. 14 X 6 mm.; 17 X 7-5 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
