[124] Bull. Mus. Comp. Zool. Harv. iv. p. 85.
[125] Erjavec, Nachr. Deutsch. Malak. Gesell. 1885, p. 88.
[126] Crosse, Journ. de Conch. (3) xiv. (1874) p. 223.
[127] C. Wright, Zoologist, 1869, p. 1700.
[128] W. V. Legge, Zoologist, 1866, p. 190.
[129] Blackwall, Researches, p. 139.
[130] Barrow, Travels in South Africa, ii. p. 67.
[131] Loch Creran, p. 102.
[132] Cordeaux, Zoologist, 1873, p. 3396.
[133] Amer. Nat. xii. p. 695; Science Gossip, 1865, p. 79.