Amphibians and reptiles from Lawachara National Park in Bangladesh
Author
Hakim, Jonathan
Author
Trageser, Scott J.
Author
Ghose, Animesh
Author
Rashid, Sheikh Muhammad Abdur
Author
Rahman, Shahriar Caesar
text
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2020
2020-09-23
16
5
1239
1268
http://dx.doi.org/10.15560/16.5.1239
journal article
10.15560/16.5.1239
1809-127X
Fejervarya orissaensis
(Dutta, 1997)
Figure 4B
Material examined.
BANGLADESH
• 1 F,
56 mm
adult;
Sylhet Division
,
Moulvibazar District
, Kamal- ganj
Upazila
, LNP, main road at
Fulbari Village
;
24° 20.09′N
,
091°48.66′E
;
17 Jun. 2015
; 19:30; photo voucher
ZRC
(
IMG
) 1.133
. •
1 M,
50 mm
adult;
Sylhet Division
,
Moulvibazar District
,
Kamalganj Upazila
, dirt road to
Fulbari Village
;
24°20.01′N
,
091°48.91′E
;
23 Jun. 2015
; 20:48; photo voucher
ZRC
(
IMG
) 1.134
. •
1 M,
46.8 mm
adult;
Sylhet Division
,
Moulvibazar District
, Ka- malganj
Upazila
, fields behind
HEED
Guesthouse
near LNP;
24°20.39′N
,
091°49.47′E
;
09 Jul. 2015
; 00:32; photo voucher
ZRC
(
IMG
) 1.135
.
Identification.
Our specimens were grayish-brown and green frogs with a prominent pointed snout, dark dorsal markings, a broad cream or green middorsal stripe (some with thin or no stripe),
SVL
of 46.8–50.0 mm in sampled males and 56.0–
58.9 mm
in sampled females, fin- ger formula of 2=4<1<3 with 1 much longer than 2 and 4, oblong body tubercles arranged in rows, and W-shaped gular pattern in the males. This agrees with the
Köhler et al. (2019)
description of
F. orissaensis
in terms of dorsal
Figure 4.
Some frogs of Lawachara National Park.
A.
Minervarya pierrei
(ZRC(IMG) 1.131).
B.
Fejervarya orissaensis
(ZRC(IMG) 1.133).
C.
Hoplobatrachus tigerinus
(ZRC(IMG) 1.136).
D.
Clinotarsus alticola
.
coloration, tubercles, male and female
SVL
, and finger formula, though the gular pattern differs somewhat (but- terfly-shaped in
F. orissaensis
versus W-shaped in our specimens). One LNP male’s call was recorded, a short (110–120 ms) croak repeated inconsistently with internote intervals of 270–540 ms at a dominant frequency of 3100–3300 Hz and a fundamental frequency of 2100– 2200 Hz. This call is similar in
type
and length to the call of
F. orissaensis
in
Myanmar
as reported in Köhler but differs significantly in pulse rate, internote interval, and dominant frequency.
Taxonomic notes.
The previous umbrella term of
F. limnocharis
(Gravenhorst, 1829)
that was once attributed to Lawachara specimens is now considered to only be valid for the
type
species occurring in Sundaland (
Veith et al. 2001
). Large-size
Fejervarya
from
Bangladesh
, including LNP (
Rahman and Howlader 2011a
), have more recently been designated as
F. teraiensis
(Dubois, 1984)
, and indeed our morphological characterization agrees with published descriptions of this species (
Rasel et al. 2007
;
Howlader 2011
;
Purkayastha and Matsui 2012
), though the calls differ to some degree. However, genetic studies previously suggested that the “large
type
”
Fejervarya
in
Bangladesh
, including in the
Sylhet Division
, do not align with
F. teraiensis
(
Islam et al. 2008
;
Kotaki et al. 2010
;
Hasan M et al. 2012
;
Sanchez et al. 2018
).
Köhler et al. (2019)
found genetic samples from
Bangladesh
to align with
F. orissaensis
and formally attributed the large-type
Fejervarya
of
Bangladesh
to this species. More sampling will need to be done to accurately describe
F. orissaensis
across their entire range.
Habitat.
Fejervarya orissaensis
in LNP were found in
heavily disturbed areas such as paddy fields and village habitat.