[74] Seemann's Isthmus of Panama.

[75] I am indebted for this note to the Rev. Leonard Jenyns. See his edition of White's Selborne, (1843) p. 66.

[76] Zoologist, pp. 6541, 6564.

[77] Ceylon, i. 211.

[78] Journ. Asiat. Soc. Bengal, vi. 465.

[79] Brit. Fishes, i. xxvii. Aristotle had long before given the same explanation.

[80] De Pisc. in siceo degent.

[81] De Piscibus.

[82] Siam, i. 144.

[83] Emb. to Siam, i. 10.