150 Bulletin American Museum of Natural History [Vol. LIII 
Ferrissia connollyi B. WALKER, 1924, ‘Ancylide of South Africa,’ p. 69, PI. 1, 
fig. 24= Ancylus (Ferrissia) connollyi B. WALKER, 1912, The Nautilus, XXV, p. 148. 
Black River, Maitland, Cape Colony. Elsewhere in Cape Colony and Natal. 
Ferrissia fontinalis B. WaLKmrR, 1924, ‘Ancylide of South Africa,’ p. 73, Pl. 11, 
fig. 27 = Ancylus (Ferrissia) fontinalis B. WALKER, 1912, The Nautilus, X XV, p. 144. 
Ranjesfontein, Pretoria District, Transvaal. Elsewhere in Transvaal, Orange Free 
State, and Natal. 
Ferrissia junodt CoNNOLLY, 1925, Trans. Roy. Soc. South Africa, XII, 3, p. 
200, fig. 26. Nwambukoto Pool near Rikatla, Portuguese East Africa. 
Ferrissia lacustris B. WALKER, 1924, ‘Ancylide of South Africa,’ p. 71, Pl. 1, 
fig. 20. Lake Chrissie, Transvaal. 
Ferrissia natalensis B. WALKER, 1924, ‘Ancylide of South Africa,’ p. 74, Pl. 1, 
fig. 21. South Coast Junction, Natal. Eleswhere in Natal. 
| Ferrissia victoriensis B. WALKER, 1924, ‘Ancylide of South Africa,’ p. 75, Pl. 11, 
fig. 28 = Ancylus (Ferrissia) victoriensis B. WALKER, 1912, The Nautilus, XXV, p. 144. 
Victoria Falls, Zambezi River, Rhodesia. 
Ferrissia zambesiensis B. WALKER, 1924, ‘Ancylide of South Africa,’ p. 75, Pl. 
u, fig. 29=Ancylus (Ferrissia) zambesiensis B. WALKER, 1912, The Nautilus, XXV, 
p. 144. Victoria Falls, Zambezi River, Rhodesia. 
According to B. Walker (1914, The Nautilus, XX VII, p. 116) the 
species recorded by Blanford (1870, ‘Observations on the Geology and 
Zoology of Abyssinia,’ p. 472) from a small stream near Mai Wahiz, 
Tigre, Abyssinia, as “‘ Ancylus verruca Benson,” is also a Ferrissia. Its 
specific identity, however, is uncertain. 
} a 
KINCAIDILLA Hannibal ‘ 
Kincaidilla HANNIBAL, 1912, Proc. Malacol. Soc. London, X, p. 148. Type by 
original designation: Ancylus fragilis Tryon. 3 
Shell patelliform, similar to Ferrissia except that at a resting stage a septum is 
formed over the posterior part of the aperture. The shell sometimes attains full 
size without forming the septum. | 
Three African species formerly referred to Gundlachia are now known 
to belong to this genus. 
Kincaidilla equeefensis (Walker) =Gundlachia equeefensis B. WaLKER, 1924, 
‘Ancylide of South Africa,’ p. 79, fig. 29; Pl. 11, fig. 33=Ancylus (Ferrissia) equee- 
fensis B. WauKur, 1912, The Nautilug, X XV, p. 143. Equeefa River, Natal. 
Kincaidilla farguhari (Walker)=Gundlachia farquhari B. Watxur, 1924, 
‘Ancylide of South Africa,’ p. 78, Pl. 1, figs. 30-32 =Gundlachia sp. B. WaLxnr, 
1914, The Nautilus, XXVIT, p. 129, footnote. Brack Kloof River near Grahamstown, 
Cape Colony. 
Kincaidilla Vhotelleriei (Walker) =Gundlachia Vhotelleriei ‘“Bourguignat” B. 
Watker, 1914, The Nautilus, XXVII, p. 128, Pl. vu, figs. 15-21. Alexandria, Egypt. 
Burnupia Walker 
Burnupia B. WALKER, 1912, The Nautilus, XXV, p. 139; asa section of Ancylus. 
Type by original apsien atic: Aipets caffer Krauss. 
