MARQUES ET AL.; AMPHIBIANS AND TERRESTRIAL REPTILES OF ANGOLA 
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Namibe: “Quarter Degree Square I5I2Aa” [=Saco; -15.125, 12.125] (Branch et al. 1997:94); 
“Quarter Degree Square I6I2Cd” [-16.875, 12.375] (Branch et al. 1997:94); “Quarter Degree 
Square 1613Ca” [-16.625, 12.125] (Branch et al. 1997:94). 
Taxonomic and distributional notes: Kelly et al. (2009) revived the family Pseudaspididae 
Dowling and Duellman, 1978 for Pseudaspis and Pythonodipsas but this clade has subsequently 
been treated as a subfamily, Pseudaspidinae, by Pyron et al. (2010, 2013). Despite the few litera¬ 
ture refereces for this species in Angola, it is expected to be widespread in the Namib Desert of the 
southwest (e.g., FitzSimons 1962; Broadley 1990; Branch et al. 1997; Branch 1998; Branch 1998; 
Bates et al. 2014; Wallach et al. 2014). Branch et al. (1997) provided the first literature records 
from southwestern Angola, all as quarter degree points plotted on a map. 
Genus Xenocalamus Gunther, 1868 
Xenocalamus bicolor machadoi Laurent, 1954 Machado’s Quill-Snouted Snake 
Xenocalamus bicolor machadoi Laurent 1954a:45, figs. 9-11. Holotype: MD 2082 (collector A. Barros 
Machado). Type locality: “Dundo,” Kwanza Norte Province, northeastern Angola. 
Xenocalamus Mechovii: Boulenger (1905:113). 
Xenocalamus bicolor pernasutus: de Witte and Laurent (1947:46). 
Xenocalamus bicolor machadoi: Broadley (1971a:680), Branch (1998:68). 
Xenocalamus bicolor. Wallach et al. (2014:780). 
Global conservation status (lUCN): Not Evaluated. 
Global distribution: The species is known from Angola and the western Katanga region. 
Democratic Republic of Congo. 
Ocurrences in Angola (Map 322): The 
species distribution may comprise the entire 
country with exception of the northwestern 
Angola. Lunda Norte: “Dundo” [-7.36667, 
20.83333] (Laurent 1954a:45; Broad¬ 
ley 197 la: 681). Benguela: “Benguella” 
[-12.58333, 13.41667] (Laurent 1954a:45). 
Undetermined locality: “Between Benguella 
and Bihe” (Boulenger 1905:113; de Witte and 
Laurent 1947:46; Broadley 1971a:681). 
Taxonomic and distributional notes: 
Laurent (1954a) dQScnhQd Xenocalamus bicol¬ 
or machadoi as a new subspecies based on a 
female holotype specimen from “Dundo,” 
Lunda Norte Province, from the Barros 
Machado collection in the Museu do Dundo, as 
well as a paratype from “Sandoa, dist. Lualaba, 
Congo Beige” and a specimen from Boulenger 
(1905) identified as Xenocalamus mechovii 
from “Between Benguella and Bihe.” It is expected that the nominate form, Xenocalamus bicolor 
bicolor, also occurs in Angola, presumably in the southeastern regions of the country, although 
it has not yet been documented. Figueroa et al. (2016) synonymized Xenocalamus with Amblyo- 
dipsas, however, as their data were limited, we retain the highly distinctive Xenocalamus as valid 
pending further data. 
Map 322. Distribution oiXenocalamus bicolor machadoi 
in Angola. 
