A review of the African snake-eyed skinks (Scincidae: Panaspis) from Angola, with the description of a new species
Author
Ceríaco, Luis M. P.
Author
Heinicke, Matthew P.
Author
Parker, Kelly L.
Author
Marques, Mariana P.
Author
Bauer, Aaron M.
text
Zootaxa
2020
2020-03-02
4747
1
77
112
journal article
10.11646/zootaxa.4747.1.3
3251efdb-f216-4473-bab3-3291db4da615
1175-5326
3693431
3A3DB69F-76E8-4219-8B2D-EFE84CE23239
Panaspis wahlbergi
(
Smith, 1849
)
(
Fig. 7
,
13–15
)
Ablepharus Wahlbergii
(
Bocage 1895: 52
)
Ablepharus wahlbergii
(
Boulenger 1905: 111
; Loveridge 1957: 219)
Afroablepharus wahlbergi
(
FitzSimons 1937: 269
;
Greer 1974: 32
;
Perret 1975: 8
;
Schmitz
et al.
2005: 19
;
Bates
et al.
2014: 257
)
Panaspis wahlbergi
(
Branch 1998: 159
;
Jacobsen & Broadley 2000: 63
;
Branch & Conradie 2015: 200
;
Medina
et al.
2016: 410
;
Branch
et al.
2019a: 296
)
Panaspis
aff.
wahlbergi
(
Marques
et al.
2018: 249
;
Branch
et al.
2019a: 318
)
Panaspis
sp. (
Baptista
et al.
2018: 400
)
Panaspis
aff.
namibiana
(
Butler
et al.
2019: 233
)
P. wahlbergi
was originally described as
Cryptoblepharus wahlbergi
by
Smith (1849)
based on specimens from the “Country to the eastward of the
Cape
Colony,” later restricted to
KwaZulu-Natal Province
,
South Africa
, by
FitzSimons (1937)
. Similar to all other members of the genus, the species has a complex taxonomic history, especially regarding its genetic allocation (for a review of its taxonomic and nomenclatural history see
Schmitz
et al.
2005
and
Medina
et al.
2016
). The first records of this species for
Angola
were provided by
Bocage (1895)
, who noted specimens collected by J.A.O. de Anchieta from Cahata and Caconda, in the higher elevation areas of
Benguela
and
Huíla
provinces, respectively. As he had done with
P. cabindae
,
Bocage (1895)
provided a detailed illustration of Angolan
P. wahlbergi
(
Fig. 7
).
Boulenger (1905)
referred to this species specimens collected “between Benguella and Bihé” [between what it is currently understood as
Benguela
and
Bié
provinces] by the British explorer William John Ansorge (
1850–1913
). These are the only published records of the species for
Angola
, although some other specimens assignable to the species were collected in the country during the twentieth century and deposited in the collections of Portuguese (IICT), North American (CAS, FMNH) and South African (TM) museums. More recently the species has been relocated in the country.
Baptista
et al.
(2018)
reported the presence of
Panaspis
sp. in theTundavala area.
Butler
et al.
(2019)
reported one specimen from Bicuar National Park, which they mistakenly labeled as
P.
aff.
namibiana
. Other specimens were recently collected by the authors LMPC and MPM in southeastern
Bié Province
.
FIGURE 13—
Preserved specimen of
Panaspis whalbergii
from Bicuar National Park, Huila Province,Angola (CAS 263401).Photo by Luis M. P. Ceríaco.
Both
Marques
et al.
(2018)
and Branch
et al.
(2019) referred to the central Angolan populations of
P. wahlbergi
as
P.
aff.
wahlbergi
, suggesting doubts about its conspecificity with the nominotypical form, and even suggesting that the Angolan population may represent a different taxon (
Branch
et al.
2019a
). However, contrary to what
Medina
et al.
(2016)
demonstrated for the eastern African populations, where a high level of cryptic diversity exists, and to the suspicions of
Marques
et al.
(2018)
and Branch
et al.
(2019), our results unambiguously place the central Angolan population as conspecific with nominotypic
wahlbergi
. The presence in the country of additional undescribed
wahlbergi
-like lineages cannot be excluded, as
Bittencourt-Silva (2019)
recently reported the presence of one of these lineages (“
Panaspis
sp. Katanga 2” sensu
Medina
et al.
2016
) in northwestern
Zambia
, not far from the Angolan border. Specimens from Calombe-Luso, Moxico Province, (IICT 268–1959 and 276–1959) could potentially belong to this lineage as well. Further sampling in the eastern regions of the country is needed to address this possibility.
FIGURE 14—
Live photos of
P. whalbergii
from Bicuar National Park, Huila Province (above, CAS 263401) and near Mumbué, Bié Province (below, AMB 11675). Photos by Luis M. P. Ceríaco.
Diagnosis.
Panaspis wahlbergi
can be distinguished from other members of the genus occurring in
Angola
by the following combination of characteristics: 1) absence of supranasals; 2) ablepharine eye (as defined by
Greer 1974
); 3) frontoparietals fused; 4) dorsum coppery-brown, with a broad black lateral band; 5) absence of rows of light spots on the neck; 6) usually a presence of a white ventrolateral stripe, from supralabials to the groin; 7) 24 to 26 midbody scales rows (
Figs. 13–14
).
Specimens examined.
ANGOLA
:
Benguela Province
:
Cubal
[-13.03333º, 14.25,
922 m
]
(
TM 39762
)
;
Kwanza-Sul Province
:
10 miles
SE of Quirimbo
[-10.83998º, 14.308124º,
851 m
] (
CAS
85966)
;
Bié Province
:
near
Mumbué
[-13.85417º, 17.47044º,
1631 m
] (
AMB 11675–11676
)
;
Chitau
[-11.43333º, 17.15º,
1510 m
]
(
FMNH 74295
,
AMNH 48505
)
;
Huíla Province
:
Caconda
[-13.73333º, 15.06667º,
1675 m
]
(
NHM
1906.8.24.72);
19 miles
NE of Lubango
[-14.78503º, 13.730408º,
1691 m
] (
CAS
85956)
;
Lubango
[-14.916667º, 13.5º,
1760 m
] (
FMNH 74295
)
;
Bicuar National Park
[-15.1034º, 14.8311º,
1243 m
] (
CAS 263401
)
.
Distribution.
Medina
et al.
(2016)
restricted to
Mozambique
and northeastern
South Africa
, but we here extend that distribution into south-central
Angola
. Historical records from
Zimbabwe
and
Zambia
might also represent true
wahlbergi
, potentially connecting the Angolan population to those of
Mozambique
and
South Africa
. However, this distribution requires further assessment, as other cryptic lineages may also be present, as evidenced by the recent discovery in northwestern
Zambia
of one of the Katangan cryptic lineages of
wahlbergi
by
Bittencourt-Silva (2019)
. In
Angola
,
P. wahlbergi
is limited to the central and southern areas of the Angolan plateau, from
Benguela Province
to
Bié
(
Fig. 15
), but is most likely that the species also occurs in the neighboring areas of
Moxico
and Cuando-Cubango provinces.
FIGURE 15—
Distribution map of
Panaspis wahlbergii
in Angola.
Habitat and Natural History notes.
The species is found in Miombo Woodlands, usually under leaf-litter, under rocks, or moving through grass (
Fig. 16
).