A review of the bats (Chiroptera) of the Republic of Congo, including eight species new to the country
Author
Bates, Paul J. J.
Harrison Institute, Centre for Systematics and Biodiversity Research, Bowerwood House, St Botolph’s Road, Sevenoaks, Kent, TN 13 3 AQ, United Kingdom & Corresponding author: E-mail: pjjbates 2 @ hotmail. com
pjjbates2@hotmail.com
Author
Cameron, Kenneth
Wildlife Conservation Society, 2300 Southern Boulevard, Bronx, New York 10460, USA
Author
Pearch, Malcolm J.
Harrison Institute, Centre for Systematics and Biodiversity Research, Bowerwood House, St Botolph’s Road, Sevenoaks, Kent, TN 13 3 AQ, United Kingdom
Author
Hayes, Benjamin
Monadh, Inveruglas, Kingussie, Inverness-shire, United Kingdom
text
Acta Chiropterologica
2013
2013-12-01
15
2
313
340
journal article
21486
10.3161/150811013X678955
69c434f8-762e-4e43-bc29-d0da90994625
1733-5329
3943563
Triaenops afer
Peters 1877
African trident bat
Triaenops afer
Peters, 1877: 913
;
Mombassa
,
Kenya
.
Triaenops persicus majusculus
Aellen and Brosset, 1968: 450
. Grotte de Doumboula, Loudima,
Congo
,
4°15’S
,
13°00’E
.
New material
HZM.39.40178
,
♂
,
29 July
, 2012
,
Airport Road
,
Lekoumou
,
2°45.724’S
,
13°34.953’E
;
HZM. 40.40179
,
♀
and
HZM.41.40180
,
♀
,
30 July
, 2012
and
3 August
, 2012
,
Lebayi Cave
,
Lekoumou
,
2°42.045’S
,
13°35.968’E
.
Previous
records included in
Appendix I
; the known distribution corresponds to localities 17, 19, 26, and
29 in
Fig. 1
. This species is considered by
Happold and Happold (2013)
to be very common in some areas of Africa.
FIG. 6. Bacula (dorsal view [left] and lateral view [right]) of (A):
Hipposideros ruber
, HZM.78.40176 and (B):
Triaenops afer
, HZM.39.40178. Scale =
0.5 mm
Description
A medium-small species with a forearm length of
54.4–57.5 mm
(
Table 2
). The face is characterised by a distinctive noseleaf, which includes three vertical processes projecting from the upper part and a fourth smaller vertical process situated at the base of the middle upper process (for further details of the noseleaf morphology see
Monadjem
et al
., 2010
: Figure 93a and b). The second phalanx of the fourth digit is unique in possessing a transverse spicule of bone, which projects from the outer side of its base for a distance of
2.5 to 3 mm
into the membrane. The skull (SL: 18.73–20.12) is narrow and elongated with a well developed rostrum. The zygomata are
not
outwardly flared but are very greatly expanded dorsally. In the upper dentition, the third molar (M
3
) is
not
reduced, having three commissures and a well developed metacone. The baculum is short (
1.8 mm
); it has a straight shaft with an expanded tip and bilobate base (
Fig. 6B
).
Taxonomic notes
The taxon
afer
is variably treated as a subspecies of
T. persicus
(
Simmons, 2005
;
Monadjem
et al
., 2010
) or as a distinct species (
Happold and Happold, 2013
).
Benda and Vallo (2009)
considered it to be a discrete species confined to Africa based on differences in the skull, baculum and Cytochrome
b
. Specimens previously collected from southern
Congo
were described as a new subspecies
majusculus
Aellen and Brosset, 1968
on the basis of their large size;
Cotterill (2001)
suggested that
majusculus
may prove to be a distinct species but this is contrary to
Benda and Vallo (2009)
, who considered even its subspecific status to be questionable. The three specimens from Lekoumou are referred to
T. afer majusculus
being comparable in size to specimens previously collected from
Congo
.