igS 
Annals of the Transvaal Museum 
of the difference in the shape of the wing, the relationship of Zapornia to 
this genus being equivalent to Crex and Crecopsis. Limnohaenus marginalia 
(Hartlaub) was omitted from Gunning and Haagner’s Check List in 1910, 
apparently by an oversight, the species having been recorded by W. L. 
Sclater from South Africa. The name of Corethrura Gray (1846), which is 
used by Reichenow, is preoccupied by Corethrura Ericksson (1844). Some 
authorities have separated the Lesser Gallinule under the generic name of 
Porphyrula Blyth (1849), or Porphyriola Sundevall (1872); but it does not 
seem to have occurred to anyone that the Lesser Moorhen, Gallinula angu- 
lata Sundevall, is equally distinct from the typical Gallinula. This is the 
more remarkable, as the synopsis of these genera in the Catalogue of Birds 
in the British Museum, Vol. xxiii. indicates that it should be placed in the 
genus Porphyriops of South America, though the species is placed in this 
work in the genus Gallinula ! C. H. B. Grant (Ihis, 1915, p. 48) has separated 
the African form of the European Moorhen under the name of Gallinula 
chloropus meridionalis Brehm; but Hartert {Nov. Zool, xxiv. 268, 1917) 
has shown that G. C. hrachyptera of the same author has precedence. 
Hartert at the same time (p. 265) has shown that Porphyrio madagas- 
cariensis Latham is the name to be used for the African Purple Gallinule. 
Iredale and Bannerman {This, 1921, p. 308) have shown that Limnocorax 
niger (Gmelin) is not tenable for the African Black Crake and that the name 
of L. flavirostra Swainson must be used. 
Heliornithidae 
The South African species of Finfoot should bear the name of Podica 
petersi Hartlaub. Mackworth-Praed {Ihis, 1917, p. 414) has recently ven- 
tured an opinion that there are two species of Finfoot within our limits, 
differing in size only ; but I fear that sufficient allowance has not been made 
for errors in sexing in the specimens examined, as there are two specimens 
in the Transvaal Museum, sexed as females, which have the dark throat 
and large size of males, which cannot very well be females on this author’s 
own showing, females being always considerably smaller than males in this 
genus. 
PODICIPEDIDAE 
Mathews {Nov. Zool. xvii. 494, 1910) has shown that Colymbus is not 
applicable to the Grebes and Dabchicks. Our species should be recognised 
in the following manner: 
Poliocephalus for Podiceps capensis. 
Proctopus for Podiceps nigricollis gurneyi Roberts {Ann. Transvaal Mus. vi. 
118, 1919). 
Podiceps for P. cristatus infuscatus (Salvad.) (cf. Reichenow, Vogelf. Mittelafrik. 
Seengeh. 1911, p. 236). 
Hydrobatidae 
Mathews has effected a considerable improvement in the classification 
of sea-birds in his renovation of the nomenclature of the birds of Australia; 
but as I have had little facility for studying these birds, I must crave 
indulgence if the following emendations are not correctly interpreted. 
Procellaria pelagica — Hydrohates pelagica (cf. Mathews and Iredale, Ibis, 1915, 
P- 579). 
Oceanodroma leucorhoa = Cymochorea leucorhoa {idem). 
