Order Rodentia - Family Nesomyidae
Author
Wilson, Don E.
Author
Reeder, DeeAnn
text
2005
The Johns Hopkins University Press
Baltimore
Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 2
930
955
book chapter
0-8018-8221-4
10.5281/zenodo.7316535
Dendromus insignis
Thomas 1903
Dendromus insignis
Thomas 1903
,
Ann. Mag. Nat. Hist., ser. 7, 12: 341
.
Type Locality:
Kenya
,
Nandi
.
Vernacular Names:
Montane African Climbing Mouse
.
Synonyms:
Dendromus abyssinicus
Osgood 1936
;
Dendromus kilimandjari
Bohmann 1939
;
Dendromus percivali
Heller 1912
.
Distribution:
Discontinuous in bamboo, heath, and alpine zones, ca.
3000-4700 m
, of East Africa—
Ethiopia
(
Yalden et al., 1976
,
1996
;
AMNH
81105) through W
Kenya
(
Hollister, 1919
;
AMNH
,
MCZ
, and
USNM
series) and Mt Elgon on the Kenya-Uganda border (Clausnitzer, 2001; reported as
mesomelas
), to Mt Kilimanjaro (
Shore and Garbett, 1991
;
Grimshaw et al., 1995
;
FMNH
specimens); also Western Rift mountains from W
Uganda
(Rwenzoris,
Kerbis Peterhans et al., 1998
) south to W
Rwanda
and E Dem. Rep.
Congo
(
Kivu region
; large samples in
AMNH
,
BMNH
, and
FMNH
); distributional extent unknown.
Conservation:
IUCN
– Lower Risk (lc).
Discussion:
Although
insignis
has been included in
D. mesomelas
(
Bohmann, 1942
;
Misonne, 1974
),
Thomas (1916
b
)
cautioned that the "lumping of
insignis
with the southern
D. mesomelas
" appeared to be "unfounded," an evaluation sustained by specimen study.
Dendromus insignis
is distinguished easily from the South African
D. mesomelas
by larger body size, shorter pelage, darker upperparts with a more prominent stripe, dark gray or grayish buff underparts (white washed with buff or ochraceous in
D. mesomelas
), larger skull and longer molar rows, and interorbital and postorbital shape.
Bohmann (1939)
described the large-bodied
kilimandjari
as a subspecies of
D. mesomelas
, but the name identifies another montane population of
D. insignis
(study of
BMNH
paratypes
);
Thomas (1916
b
)
explained why
percivali
is a synonym; and allocation of
abyssinicus
is based upon our inspection of the
FMNH
holotype
. Prior to 1991, most literature references to
D. mesomelas
in mountains north of the Southern African Subregion actually represent either
D. insignis
or
D. nyasae
(see account), which may co-occur in the Western Rift mountains. In the Rwenzori Mountains National Park,
Uganda
,
D. insignis
and
D. nyasae
(recorded as
kivu
) occur together in the moorlands above
3000 m
(
Kerbis Peterhans et al., 1998
). On Mt Kilimanjaro,
D. insignis
inhabits heath and alpine zones,
3500-4700 m
, and the savannah species,
D. melanotis
, is found near the forest margin,
1500 m
(
Grimshaw et al., 1995
).