. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. CONTRIBUTIONS TO THE KNOWLEDGE OF MARINE MOLLUSCA 477 Lucina tabulata Desh. appears from Chenu's figure (1862, fig. 569) to have a somewhat similar periodic variation in the formation of the lirae. Loripes philippinarum (Hanley) Lucina philippinarum Hanley, 14, fig. 18 (not ''as given in text). Equilateral, rather convex, antero- and postero-dorsal margins nearly straight, slightly sloping, the ventral margin between them evenly curved. Widely spaced, narrow but
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. CONTRIBUTIONS TO THE KNOWLEDGE OF MARINE MOLLUSCA 477 Lucina tabulata Desh. appears from Chenu's figure (1862, fig. 569) to have a somewhat similar periodic variation in the formation of the lirae. Loripes philippinarum (Hanley) Lucina philippinarum Hanley, 14, fig. 18 (not ''as given in text). Equilateral, rather convex, antero- and postero-dorsal margins nearly straight, slightly sloping, the ventral margin between them evenly curved. Widely spaced, narrow but not lamellose concentric costae, 7 in the first 2 mm. alt., 6 in the next 5 mm., and 7 in the later 11 mm., total 20 (another is just due to be formed at the margin); intervals with fine regular costulae, 5-6 on. Fig. 22. Phacoides peritaphros Anterior view, and lateral views of two shells to show variation in the sulci. the early part, increasing to 7-8 near the margin. Lunule well marked but not sunken, 3-5 long, 1 mm. wide. Escutcheon narrow, elongate. Two cardinal teeth, both bifid, and an anterior dentiform lateral. Ligament internal. Inset part of anterior adductor scar only half as wide as the upper oval part. Margin internally crenulate. Buff. Length 16-5, alt. 15, thickness (one valve) 5 mm. Off Umhloti River (Natal) 40 fathoms, one right valve and one broken (S. Afr. Mus. A9534. coll.). Remarks. Provisionally identified with Hanky's species. This is not the Cryptodon philippinarum as figured by Smith (1897, Moll., pi. 4, figs. 6, 6a). Loripes clausus (Phil.) Lucina lactea {non Lam.), Krauss, 1848, p. 4. Loripes lactea {non Lam.), Sowerby, 1889b, p. 155. Loripes lacteus {non Linn.), Sowerby, 1892, p. 61. Loripes flexuosus {non Mont.), Johnson, 1904, p. 11. Loripes leucoma {non W. Turton), Krige, 1933, p. 51. Loripes clausus (Phil.), Sowerby, 1894, p. 378; 1897, p. 26; Schwarz, 1900, p. 26; Smith, 1904a, p. 40; Smith, 1906b, p. 67; Schwarz, 1910, p. 116; Bart
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
