Limnocnida has recently been discovered by Budgett in the river Niger. See Browne, Ann. Nat. Hist. xvii. 1906, p. 304.
"The Tanganyika Problem," 1903, p. 298.
Cf. Boulenger, Presidential Address to Section D of the British Association (Cape Town, 1905).
C. Hartlaub, Verhandl. Deutsch. Zool. Ges. 1896, p. 3.
Abh. Senckenb. Ges. xvi. 1891, p. 44.