MARQUES ET AL.; AMPHIBIANS AND TERRESTRIAL REPTILES OF ANGOLA 
2II 
Monopeltis welwitschii (Gray, 1865) Welwitsch’s Worm Lizard (Endemic) 
Dalophia Welwitschii Gray 1865a:455, figs. 7-8. Syntypes: BMNH 1946.8.20.89-90 (formerly BMNH 
64.7.13.34-35) (collector F. Welwitsch). Type locality: “Angola; Pungo-Andongo,” Malanje Province, 
Angola. 
Monopeltis Welwitschii: Gray (1865b:377), Bocage (1895a:29, 1897a: 194). 
Monopeltis welwitschii: Loveridge (1941c:431), Frade (1963:252), Gans (1967:87, 2005:38). 
Dalophia Welwitschii: Broadley et al. (1976:376). 
Global conservation status (lUCN): Not Evaluated. 
Global distribution: The speeies is known only from Angola. 
Ocurrences in Angola (Map 163): The 
species is only known from the type locality 
“Pungo-Andongo” but may extend to the south 
of the type locality and to other provinces (e.g., 
Kwanza Sul; Bie). Malanje: “Pungo-Andon¬ 
go” [-9.66667, 15.58333] (Gray 1865a:455, 
18656:377; Bocage 1895a;29, 1897a;194; 
Loveridge 1941c:432; Gans 1967:87,2005:38; 
Broadley et al. 1976:376). 
Taxonomic and distributional notes: 
This species description (Gray, 1865a) pub¬ 
lished in the “Proceedings of the Zoological 
Society of London” was reprinted (Gray 
1865b) in “Annals and Magazine of Natural 
History” under the heading Proceedings of 
Learned Societies, creating some subsequent 
confusion as to the correct citation of the 
, r^c\nr\ 4 . ^ 4 .\ 4 . Map 163. Distribution of Monopeltis welwitschii in 
paper. Broadley et al. (1976) noted that 
Dalophia welwitschii Gray, 1865 was the 
species of the Dalophia group closest to Monopeltis. In fact, Dalophia welwitschii Gray, 1865 is 
the type species of the genus Dalophia, yet despite this Gans (2005) both recognized Dalophia as 
valid and listed this taxon under Monopeltis. This paradox appears to have been an oversight on 
the part of Gans (2005). Resolution through phylogenetic analysis has been hampered by the fact 
that M. welwitschii is known only from the type specimens. Should it actually belong in 
Monopeltis, the next available generic name for remaining Dalophia would be Tomuropeltis 
Laurent, 1947 (type spQcms Monopeltis giganteus Peracca, 1903). 
Genus Zygaspis Cope, 1885 
Zygaspis nigra Broadley and Gans, 1969 Black Round-Snouted Worm Lizard 
Zygaspis niger Broadley and Gans 1969:1, figs. 1-2. Holotype: NMZB 6698 (formerly UM 6698) (eolleetor 
R.G. Japp). Type loeality: “Kalabo, Barotse Provinee,” Zambia. 
Zygaspis quadrifrons capensis: Laurent (1964a:84). 
Zygaspis niger: Broadley and Gans (1975:21). 
Zygaspis nigra: Broadley and Broadley (1997:13), Braneh (1998:124), Gans (2005:39), Broadley and Measey 
(2016:118). 
Global conservation status (lUCN): Least Concern. 
Global distribution: The species is known from eastern Angola, western Zambia, the Caprivi 
Strip of Namibia and into adjacent northern Botswana. 
