EDMONDIDJE. 253 



Antheacomta modiolabis, Sowerby, sp., 1840. Monograph, p. 95, pi. xiii, 



figs. 10, 12 ; pi. xiv, figs. 1—11, 32 ; 

 pi. xvi, figs. 49 — 53. 



— Williamsoni, Brown, sp., 1849. Ibid., p. 99, pi. xiv, figs. 12— 



31 ; pi. xv, fig. 10. 



— — var. obtusa, Ludwig, sp., 1859. Ibid., p. 103, 



pi. xv, figs. 5 — 9. 



— lanceolata, Kind, 1893. Ibid., p. 104, pi. xv, figs. 11, 11a. 



— Waedi, Etheridge (after Salter), 1890. Ibid., p. 105, pi. xiii, figs. 



13, 15, 10 ; pi. xv, figs. 1—4, 12—20 ; 

 pi. xxi, figs. 9 — 10 a, p. 175. 

 pumila, Salter, 1861. Ibid., p. 108, pi. xvi, figs. 2, 3, and 40. 



— subcentealts, Salter, 1SG1. Ibid., p. 109, pi. xvi, figs. 1, 4 — 9 ; 



pi. xvii, figs. 3 — 5 ; pi. xix, figs. 

 21,21a. 



— obotata, Hind, 1893. Ibid., p. 110, pi. xvi, fig. 41. 



— senex, Salter, 1861. Ibid., pp. Ill, 175, pi. xv, figs. 21—28; 



pi. xxi, fig. 14. 



— Valenciensis, Hind (after R. Etheridge, jun., MS.), 1895. Ibid., 



p. 113, pi. xvi, figs. 44 — 48. 



— pulchea, Hind, 1895. Ibid., p. 114, pi. xv, figs. 29 — 49. 



— minima, Ludwig, 1859-60. Ibid., p. 116, pi. xvi, figs. 21, 22, 



24—34. 



— — var. caeinata, Hind, 1895. Ibid., p. 119, pi. xvi, figs. 



35—39. 



— Phillipsii, Williamson, sp., 1836. Ibid., pp. 120, 176, pi. xvi, 



figs. 10 — 16 ; pi. xxi, fig. 7. 



— l^vis, Dawson, var. scotica, Etheridge, 1877. Ibid., p. 123, pi. 



xvi, figs. 17—20, 42, 43. 



— subpaeallela, Portlock, sp., 1843. Ibid., p. 176, pi. xvii, figs. 



1, 2 ; pi. xxi, figs. 2 — 6. 



Family EDMONDID^E, King, 1849. 



Edmondid^e, King, 1849. Monogr. Permian Foss., p. 162. 

 Anatinin.e (pars), StoliczJca, 1871. Pal. Indica, vol. iii, p. 162. 

 Caediomoephid^:, Hall, 1883. Pal. New York, vol. v, pt. ii, headings of pis. lxii 



— lxiv. 

 — Miller, 1889. Geol. and Pal. N. America, p. 458. 



Family Characters. — Equivalve ; umbones more or less prosogyrous ; no 

 lunule; hinge edentulous, or with a single blunt cardinal tooth (in Scaldia). 

 Ligament external, small. Pallial line entire. 



Observations. — The genera Cardiomorpha and Edmondia, de Koninck ; Sedg- 

 wiclria, M'Coy; Scaldia, de Ryckholt, form a well-defined group, which cannot 



