Xenocalamus Günther, 1868

Marques, Mariana P., Ceríaco, Luis M. P., Blackburn, David C. & Bauer, Aaron M., 2018, Diversity and Distribution of the Amphibians and Terrestrial Reptiles of Angola Atlas of Historical and Bibliographic Records (1840 - 2017), Proceedings of the California Academy of Sciences 65, pp. 1-501 : 359-360

Genus Xenocalamus Günther, 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 (IUCN): 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; Broadley 1971a:681). Benguela: “Benguella”

[-12.58333, 13.41667] ( Laurent 1954a:45).

Undetermined locality: “Between Benguella and Bihé” ( Boulenger 1905:113; de Witte and

Laurent 1947:46; Broadley 1971a:681).

Taxonomic and distributional notes:

Laurent (1954a) described 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 ,

MAP 322. Distribution of Xenocalamus bicolor machadoi Congo Belge ” and a specimen from Boulenger in Angola.

(1905) identified as Xenocalamus mechovii from “Between Benguella and Bihé.” 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 Amblyodipsas , however, as their data were limited, we retain the highly distinctive Xenocalamus as valid pending further data.

Xenocalamus mechowii mechowii Peters, 1881 ELONGATE QUILL-SNOUTED SNAKE

Xenocalamus Mechowii Peters 1881:147 . Holotype: ZMB 10044 (collector F.W. von Mechow). Type locality: “ Malanje,” Malanje Province, Angola. Xenocalamus Mechovii : Boulenger (1915:214). Xenocalamus mechowi : Monard (1937b:127), Branch (1998:69), Broadley (2003:88), Chippaux (2006:213),

Wallach et al. (2014:781). Xenocalamus mechowi mechowi : de Witte and Laurent (1947:49), Broadley (1971a:681) Laurent (1954a:45). Xenocalamus mechowii inornatus : Branch and McCartney (1992:2).

Global conservation status (IUCN): Not Evaluated.

Global distribution: The species as a whole is known from southern Congo and Democratic Republic of Congo. Through eastern Angola,

to northeastern Namibia, northern Botswana and northwestern Zimbabwe.

Ocurrences in Angola (Map 323): The species probably occurs throughout the entire country with the exception of the western regions along the coast. Lunda Norte:

“Sombo (Kassekue river, right affluent of

Chiumbe)” [-8.68333, 20.95000] ( Laurent

1954a:45). Malanje: “ Malanje ” [-9.55000,

16.35000] ( Peters 1881:147; de Witte and

Laurent 1947:49; Chippaux 2006:213).

Taxonomic and distributional notes: Within

Angola Broadley (1971a), considered the typical form to be restricted to northern Angola.

Figueroa et al. (2016) synonymized Xenocalamus with Amblyodipsas , however, as their data were limited, we retain the highly distinctive

MAP 323. Distribution of Xenocalamus mechowii mechowii in Angola.

Xenocalamus as valid pending further data.

Xenocalamus mechowii inornatus de Witte and Laurent, 1947 INORNATE ELONGATE QUILL-SNOUTED SNAKE

Xenocalamus mechowii inornatus de Witte and Laurent 1947:51 . Holotype: SAM 19719 (collector unknown). Type locality: “Ovamboland (Sud-Ouest africain)” [= Ovamboland , Namibia].

Xenocalamus mechowii inornatus : Branch and McCartney (1992:2).

Global conservation status (IUCN): Not Evaluated.

Global distribution: This subspecies is known from northern and northeastern Namibia, and adjacent regions of Zambia, Botswana, Zimbabwe and Angola.

Ocurrences in Angola ( Map 324 ): This subspecies is confirmed form a single record in the southeast of the country, but it may occur more broadly. Cuando Cubango: “vinicity of Cuito Cuanavale- approximatley 45 km S of Lupire ” [-15.08333, 19.58333] (Branch and McCartney 1992:2) .

Taxonomic and distributional notes: Branch and McCartney (1993) recorded X. mechowii inornatus from Cuando Cubango Province and considered theirs to be first record of the southern race in Angola, although there are several records from immediately adjacent to Cuando Cubango in the Caprivi Strip and western Zambia.

Figures

MAP 324. Distribution of Xenocalamus mechowii inor- natus in Angola.