[635] Renault (96), p. 125; (93), Pl. LIX. fig. 2.
[636] Lindley and Hutton (31), Pls. CXIV., CXC. etc. Most of the specimens figured by these authors are in the Newcastle Natural History Museum. For notes on the type-specimens of Lindley and Hutton, vide Howse (88) and Kidston (902).
[637] Weiss (88), Stur (87), etc.
[638] Vide, p. 367.
[639] Ante, p. 260.
[640] Hick (95).
[641] Brongniart (22), p. 235.
[642] Schlotheim (20).
[643] Brongniart (28), p. 159.
[644] Lindley and Hutton (31), Pl. CXC.