[485] Schwendener 1860.

[486] Meyer 1825, p. 170.

[487] Krabbe 1891.

[488] Bitter 1901.

[489] Schwendener 1860, p. 137.

[490] Wainio 1897, p. 32.

[491] Reinke 1895, p. 380.

[492] Bitter 1901.

[493] Lesdain 1910.

[494] Schwendener 1860.