. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 210 ANNALS OF THE SOUTH AFRICAN MUSEUM Gen. Typhis Montfort 1929. Thiele. Handbuch, i, p. 293, fig. 318 (radula). Radula with wide central plate, 1-3 small cusps between the median and side cusps, lateral plate unicuspid, uncinate. Typhis arcuatus Hinds Fig. 46(a)-te) 1843. Hinds. Proc. ^ool. Soc, Lond., p. 19. 1844. id. Moll. Voy. Sulphur, p. 10, pi. 4, figs. 1,2. ? 1903. Von Martens. D. Tie/see Exp., vii, p. 94, pi. 3, fig. 2 (transcurrens). 1925. Thiele. ibid., xvii, p. 170. Protoconch i\ whorls,
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 210 ANNALS OF THE SOUTH AFRICAN MUSEUM Gen. Typhis Montfort 1929. Thiele. Handbuch, i, p. 293, fig. 318 (radula). Radula with wide central plate, 1-3 small cusps between the median and side cusps, lateral plate unicuspid, uncinate. Typhis arcuatus Hinds Fig. 46(a)-te) 1843. Hinds. Proc. ^ool. Soc, Lond., p. 19. 1844. id. Moll. Voy. Sulphur, p. 10, pi. 4, figs. 1,2. ? 1903. Von Martens. D. Tie/see Exp., vii, p. 94, pi. 3, fig. 2 (transcurrens). 1925. Thiele. ibid., xvii, p. 170. Protoconch i\ whorls, alt. 1-3, diam. 1 mm., smooth, glistening. Post- natal whorls 5; 4 tubes and 4 varices on each whorl; tubes subcircular on early whorls, becoming oval and carinate in front on later whorls, sometimes on last whorl narrowly oval (complanate); varices curving forwards, carinate, connected with the tubes, but with a shallow notch at base of tube defined by a feeble angulation. 20 x 10-11 mm. (excl. tubes). Operculum broadly oval, fitting the continuous peristome, nucleus apical, growth-lines well marked. Surface dull or chalky-white, except the glistening Fig. 46. Typhis arcuatus Hinds, (a) body whorl, (b) anterior view of tube and varix. (c) the same of a specimen from Cape Point (S. Afr. Mus. no. A4945). (d), (e) diagrammatic apical views of normal specimen, and Cape Point specimen. (/), (g) two views of protoconch. T. penta- phasios n. sp. (h), (i) body whorl, and diagrammatic apical 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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