Annals of the Transvaal Museum 
205 
Anas erythrorhyncha Gmelin should be placed in the genus Paecilonitta, 
a course which has been followed by most authors. 
Mathews (Nov. Zool. xviii. 9, 1911) has rejected the name of Erismatura 
and employed that of Oxyura, which proves also to be preoccupied. But 
whatever conclusion may be come to in reference to the species exotic 
to South Africa, our species must bear the name of Cerconectes maccoa, 
on account of the difference in the number of tail feathers. 
Phalacrocoracidae 
Mathews (B. Australia, iv. 162, 1915) has pointed out a number of 
necessary alterations in the classification of the Cormorants. His review 
does not, however, include the African species, and it therefore becomes 
necessary here to deal with them. They may be arranged as follows: 
With fourteen tail feathers : 
Phalacrocorax lucidus: bill long, but stout; lores not feathered. 
Pseudocarbo gen. nov., genotype Pelecanus capensis Sparrmann: bill long, 
but slender; size smaller; lores feathered. 
With twelve tail feathers: 
Microcarbo africanus : bill very short; size small; tail more than half the length 
of the wing. 
Anacarbo gen. nov., type Graculus neglectus Wahlberg: bill longer; size much 
larger; tail less than half the length of the wing; lores densely feathered. 
Microcarbo coronaius (Wahlberg) has been placed in the synonymy of 
M. africanus by all recent authors; but it is unquestionably distinct, 
both on the width of the markings on the upper parts and the length of 
the tail; coronatus is found only on the seaboard, while africanus is found 
inland. All the specimens of A. coronatus that I have seen that are adult 
are black in both sexes; but amongst the specimens in the Transvaal 
Museum collection of africanus there is only one adult male from Potchef- 
stroom, that is altogether black, which makes me think that possibly the 
female does not assume a wholly black plumage. I do not remember ever 
to have seen a wholly black specimen in life of this species, and I hope we 
shall have any such cases reported when they are observed. 
I observe that Millet-Horsin has recently described a subspecies under 
the name of Phalacrocorax africanus menegauxi, from Togo and Dahomey 
(cf. Rev. Frang. d’Orn. No. 152, p. 177, Dec. 1921). No reference is made 
to Swainson’s species Carbo longicaudatus (cf. B. W. Africa, ii. 255, 
PI. XXXI), which may possibly be the same form, though Swainson's form 
was not in breeding dress and there is therefore an element of doubt. The 
South African form of the Reed Duiker was described by Smith as Carbo 
africanoides (Report Exp. for Expl. Africa, 1836, p. 37) for a specimen in 
non-breeding plumage obtained near New Latakoo, and apart from colour 
characters, which have not yet been described in full for the races, this form 
must stand on the character of its shorter tail, this measuring 150-160 mm. 
in thirteen specimens I have examined from Durban, Beira, Boror, Pot- 
chefstroom, Pretoria, Moordrift and Shesheke, as against 170 in the typical 
form and 175 in menegauxi according to Millet-Horsin ; in a single immature 
specimen from Klein Letaba the tail measures 170, seeming to show that 
the northern species sometimes migrates southwards. In the bill the length 
from the gape to the tip varies between 51 and 57 mm. in the fourteen speci- 
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