Tapeworms (Cestoda: Proteocephalidae) of Australian reptiles: hidden diversity of strictly host-specific parasites
Author
Chambrier, Alain De
Author
Beveridge, Ian
Author
Scholz, Tomáš
text
Zootaxa
2018
2018-08-23
4461
4
477
498
journal article
28967
10.11646/zootaxa.4461.4.2
4088067b-9ee8-4fea-b597-059a9de5b6e2
1175-5326
1460246
838E32FD-05BE-47D4-9CF1-E96E7F1C08FF
Australophiotaenia gallardi
(
Johnston, 1911
)
n. comb.
—
type
species
Syns
Ichthyotaenia
sp. of
Johnston (1910)
;
Proteocephalus gallardi
Johnston, 1911
;
Acanthotaenia gallardi
(
Johnston, 1911
)
Johnston, 1913
;
Crepidobothrium gallardi
(
Johnston, 1911
) Meggitt, 1927
;
Ophiotaenia gallardi
(
Johnston, 1911
)
Freze, 1965
Type
and probably only host.
Red-bellied black snake,
Pseudechis porphyriacus
(Shaw, 1794)
(
Ophidia
:
Elapidae
).
Site of infection.
Intestine.
Type
locality.
Gippsland
,
Victoria
,
Australia
(
37°51'S
,
147°35'E
).
Distribution.
Australia
(
New South
Wales
,
Queensland
and
Victoria
).
References.
Johnston (1911
,
1912
,
1913
),
Zehnder and Mariaux (1999)
, de Chambrier and de
Chambrier (2010)
,
Scholz
et al.
(2013)
.
Material studied.
See de Chambrier and de
Chambrier (2010)
, who designated
lectotype
(QM G12/110).
Redescription.
See de Chambrier and de
Chambrier (2010)
.
Remarks.
This species was described as
Proteocephalus gallardi
by
Johnston (1911)
based on tapeworms found by A. S. Le Soeuf in red-bellied black snake (
Pseudechis porphyriacus
) in Gippsland,
Victoria
,
Australia
. However, de Chambrier and de
Chambrier (2010)
, who studied the
type
material of the species, revealed that a mixture of two markedly distinct species from two different genera was used for the original description of
P. gallardi
(=
A. gallardi
). They redescribed
A. gallardi
, designated
lectotype
and
paralectotypes
, and proposed a new genus,
Vandiermenia
, to accommodate the second, new species,
V. beveridgei
de Chambrier and de
Chambrier, 2010
.
Johnston (1912
,
1913
) reported
A. gallardi
also from three other venomous snakes in the vicinity of Sydney, namely
Notechis scutatus
(Peters, 1861)
,
Denisonia
superba
(Günther, 1858)
[now
Austrelaps superbus
(Günther, 1858)
] and
Pseudechis australis
(Gray, 1842)
. However, de Chambrier and de
Chambrier (2010)
questioned the identification of these cestodes as
A. gallardi
. Tapeworms from
N. scutatus
represent a new, yet undescribed species designated here as
Australophiotaenia
sp. 2 (see below).
Zehnder and Mariaux (1999)
presented sequences of
lsr
DNA and
rrn
L of this putative new species, whereas
Scholz
et al.
(2013)
provided sequences of
ssr
DNA,
lsr
DNA,
rrn
L and
cox
1 of
A. gallardi
(
KC786014
,
KC786025
,
KC786003
and
KC785990
, respectively) from the type host,
P. porphyriacus
in Brisbane
, Queensland, Australia (host field No. AUS 7—paragenophore as MHNG- PLAT 36550).
Australophiotaenia gallardi
can be distinguished from congeners in reptiles in
Australia
by the following characteristics: a large strobila (
375–400 mm
), the presence of an apical organ, low number of the testes (67–103) and a large embryophore (diameter of 37–40 µm).