[2101] [Ibid.] Fig. 56. aψ, f*.

[2102] [Ibid.] Fig. 49. aψ, f*.

[2103] Vol. II. p. [326]—.

[2104] Linn. Trans. xii. t. xxii. f. 1.

[2105] For other instances of this structure, see above, p. [336].

[2106] De Geer, iii. 7.

[2107] Ibid. vii. 84. Plate [XXVII.] Fig. 60, 63.

[2108] [Ibid.] Fig. 61.

[2109] Vol. II. p. [327]—.

[2110] Plate [XXVII.] Fig. 59.