Revision of the aperturally dentate Charopidae (Gastropoda: Stylommatophora) of southern Africa - genus Afrodonta s. lat., with description of five new genera, twelve new species and one new subspecies
Author
Herbert, David G.
urn:lsid:zoobank.org:author:0C09EE45-6198-482E-857A-EF690C2A016F
Department of Natural Sciences, National Museum Wales, Cathays Park, Cardiff, CF 10 3 NP, UK. Formerly at KwaZulu-Natal Museum, P. Bag 9070, Pietermaritzburg 3201, South Africa
phasianella@gmail.com
text
European Journal of Taxonomy
2020
2020-04-17
629
1
55
journal article
22877
10.5852/ejt.2020.629
3722aa65-b935-4294-ac20-0d1179da9015
3762280
ECEBD539-6E3E-45BE-A0CB-264DF3270CC0
Afrodonta inhluzaniensis leptolamellaris
subsp. nov.
urn:lsid:zoobank.org:act:
823F6241-748D-4994-A5D1-56AE413A4553
Figs 4
D–F, 5, 17K–L
Diagnosis
Shell as in
Af. inhluzaniensis inhluzaniensis
, but baso-columellar denticle present as two smaller, unequally sized denticles, the larger of which is somewhat pointed with the smaller one lying to its right; the latter, though sometimes very small and hard to see through the aperture, is usually evident externally by transparency; palatal lamella prominent, but slender, strongly angled upwards, its crest only slightly thickened.
Etymology
From the Greek
leptos
(
λεπτός
): thin, slender, and the Latin
lamina
, diminutive of
lamella
: a small plate or blade; with reference to the narrow palatal lamella.
Material examined
Holotype
SOUTH AFRICA
•
KwaZulu-Natal
,
Ongoye Forest
;
28.848° S
,
31.717° E
;
350 m
a.s.l.
;
1 Sep. 1997
;
M. Lawes
and
H. Adie
leg.;
coastal scarp forest, in leaf-litter
; diameter
1.2 mm
, height
0.69 mm
;
NMSA
V7615/T4235
.
Paratypes
SOUTH AFRICA
–
KwaZulu-Natal
•
4 specimens
; same collection data as for holotype;
NMSA
P1008/T4236
•
9 specimens
;
Amatikulu Nat. Res.
;
29.115° S
,
31.598° E
;
45 m
a.s.l.
;
22 Jan. 2000
;
D.G. Herbert
leg.;
coastal forest
;
NMSA
V8084/T4231
•
4 specimens
;
Shongweni Resource Res.
;
29.8550° S
,
30.7267° E
;
400 m
a.s.l.
;
16 Mar. 1998
;
D.G. Herbert
leg.;
riverine woodland, in leaf-litter
;
NMSA
V6597/T4233
•
3 specimens
;
Oribi Gorge Nat. Res.
,
Hoopoe Falls
trail;
30.70765° S
,
30.26992° E
;
225 m
a.s.l.
;
5 Oct. 2001
;
D.G. Herbert
leg.;
scarp forest, in leaf-litter
;
NMSA
V9452/T4234
. –
E. Cape
•
33 specimens
;
Mkambati Nat. Res.
;
31.31806° S
,
29.9672° E
;
28 m
a.s.l.
;
26 Jan. 2008
;
Earthwatch
leg.; station ECMF12;
forest, in leaf-litter
;
NMSA
W6446/T4230
•
8 specimens
;
East London
,
Umtiza Nat. Res.
;
33.016° S
,
27.809° E
;
170 m
a.s.l.
;
4 Mar. 2000
;
D.G. Herbert
leg.;
coastal forest, in leaflitter
;
NMSA
V8039/T4232
•
7 specimens
;
East London
,
Umtiza Nat. Res.
,
west side of Buffalo Pass
;
33.013472° S
,
27.79553° E
;
8 Apr. 2002
;
M.L. Bursey
leg.;
coastal forest, in leaf-litter
;
ELM
D15561/ T171
.
Fig. 5.
Distribution of
Afrodonta inhluzaniensis inhluzaniensis
(
Burnup, 1912
)
(orange squares) and
Af. inhluzaniensis
leptolamellaris
subsp. nov. (blue triangles). Contour at 1000 m.
Other material
SOUTH AFRICA
–
KwaZulu-Natal
•
1 specimen
;
Hluhluwe Game Res.
;
28.077° S
,
32.045° E
;
460 m
a.s.l.
;
29 Nov. 1998
;
D.G. Herbert
,
M. Seddon
and
P. Tattersfield
leg.;
scarp forest, in leaf-litter
;
NMSA
V7673
•
2 specimens
;
Ongoye Forest
;
28.83110° S
,
31.72820° E
;
23 Jun. 2015
;
D. Herbert
and
L. Davis
leg.;
scarp forest, in leaf-litter
;
NMSA
P0388
•
3 specimens
;
Ongoye Forest
;
28.848° S
,
31.700° E
;
1 Sep. 1997
;
M. Lawes
and
H. Adie
leg.;
coastal scarp forest, regenerating
Eucalyptus
plantation, in leaf-litter
;
NMSA
V7575
•
11 specimens
;
Shongweni Resource Res.
;
29.855° S
,
30.730° E
;
400 m
a.s.l.
;
1 Mar. 1997
;
NMSA
Dept of Mollusca
leg.;
thick valley bushveld and woodland, in leaf-litter
;
NMSA
V4125
•
1 specimen
;
Mpenjati Nat. Res.
,
Yengele Trail
;
30.968° S
,
30.285° E
;
19 Dec. 1997
;
K. Cradock
leg.;
dune forest
;
NMSA
V6808
•
1 specimen
;
Mpenjati Nat. Res.
,
Yengele Trail
;
30.96910° S
,
30.28197° E
;
28 Dec. 2002
;
D.G. Herbert
leg.;
dune forest, in leaf-litter
;
NMSA
W384
. –
E. Cape
•
7 specimens
;
Mtentu River mouth, forest on north side of gorge
;
31.2383° S
,
30.0351° E
;
20 May 2001
;
D.G. Herbert
leg.;
coastal forest, in leaf-litter
;
NMSA
V9146
•
9 specimens
;
Mkambati Nat. Res.
,
forest on south side of Mtentu estuary, on top of gorge
;
31.2419° S
,
30.0299° E
;
21 May 2001
;
D.G. Herbert
leg.;
coastal forest, in leaf-litter
;
NMSA
V9149
•
1 specimen
;
Mkambati Nat. Res.
;
31.27292° S
,
30.02169° E
;
10 m
a.s.l.
;
27 Jan. 2008
;
Earthwatch
leg.; station ECMF13,
forest, in leaf-litter
;
NMSA
W6461
•
1 specimen
;
Mkambati Nat. Res.
;
31.29027° S
,
29.99026° E
;
50 m
a.s.l.
;
26 Jan. 2008
;
Earthwatch
leg.; station ECMF11,
forest, in leaf-litter
;
NMSA
W6441
•
2 specimens
;
Mkambati Nat. Res.
,
Gwe Gwe forest
walk;
31.2904° S
,
29.9897° E
;
90 m
a.s.l.
;
5 Mar. 2001
;
D.G. Herbert
leg.;
small patch of coastal forest, in leaflitter
;
NMSA
V8975
•
4 specimens
;
Mkambati Nat. Res.
, ‘
Super Bowl’ forest at junction of Msikaba and KwaDlambu Rivers
;
31.2955° S
,
29.9292° E
;
5 Mar. 2001
;
D.G. Herbert
leg.;
indigenous forest, in leaf-litter
;
NMSA
V8953
•
4 specimens
;
Mazeppa Bay area
;
32.48008° S
,
28.64310° E
;
23 Feb. 2006
;
D.G. Herbert
and
L.S. Davis
leg.;
dune forest, in leaf-litter
;
NMSA
W5557
.
Distribution and conservation
Endemic to eastern
South Africa
(
Fig. 5
), occurring in the coastal hinterland of
KwaZulu-Natal
and E.
Cape
, from Zululand (Hluhluwe) to East London, from sea level to
460 m
a.s.l.; in leaf-litter of coastal and scarp forests. Not of conservation concern.
Remarks
Afrodonta inhluzaniensis leptolamellaris
subsp. nov.
is clearly close to the nominotypical subspecies. However, its geographical separation from the latter, together with slight but consistent differences in apertural characters indicate that it merits recognition as an entity distinct therefrom.