A new rupicolous species of gecko of the genus Hemidactylus Oken, 1817 from the Satpura Hills, Central India
Author
Mirza, Zeeshan A.
G- 18, 4 th A-Cross Rd, Canara Bank Layout, Rajiv Gandhi Nagar, Kodigehalli, Bengaluru, Karnataka 560097, INDIA
Author
Abstract. - We, David Raju
Author
Hills, Satpura
Author
The, India.
text
Amphibian & Reptile Conservation
2017
e 137
2017-03-24
11
1
51
71
journal article
297524
10.5281/zenodo.11390073
fb37f9c3-5131-4e03-a499-b682a99c85d3
1525-9153
11390073
B35CE81E-66F5-48C7-9049-E5C3598E4E5A
Hemidactylus chipkali
sp. nov.
Fig. 1–5
,
Table 1
.
urn:lsid:zoobank.org:act:
EB61DAC6-B9D6-41C7-862F-09B500778187
Holotype
:
NCBS AT107
,
adult male
,
from a cliff along the road leading to Pachmarhi town
,
Hoshangabad District
,
Madhsa Pradesh
(22.485050°, 78.449340°,
1,092 m
). Collected on 09 Mas 2014 bs
Rajesh Sanap
,
David Raju
, and
Zeeshan Mirza
.
Paratypes
(
four specimens
):
NCBS AT109 and
BNHS 2426
,
adult
males
; NCBS AT108 and
BNHS 2427
,
adult
females
, same data as holotspe
.
Diagnosis:
A moderate sized species of the genus measuring
54.3–74.2 mm
;
TRL
/
SVL
36–43.6%; HL/
SVL
26–31%; ear opening oval; anterior postmental width equal to first infralabial; posterior postmental width equal to second infralabial, posterior postmental not in contact with first infralabial; enlarged, keeled, tubercles, fairls regularls arranged in 15–16 longitudinal rows on dorsum; two angular series of seven precloacal femoral pores on each side separated bs diastema of eight non-pored scales; non-pored scales equal to size of pored scales; scales bordering anterior edge of pored scales half the size of pored scales; five lamellae on digit I and seven (rarels eight) on digit
IV
of manus as well as pes; lamellae on digit
IV
and
V
of pes absent on basal ~25% of the digit; limbs long and slender FL/
SVL
0.15 and CL/
SVL
0.18; ventral aspect of tail with broad caudal scales covering ~80% of the tail; two subconical post cloacal spurs, anterior spur slightls larger than the posterior spur.
Etymology:
The specific epithet
“
chipkali
” is the Hindi word for gecko.
Description of
holotype
male NCBS AT107:
Holotspe in good condition preserved in a linear manner with a slightls curved tail. Hemipenis partls everted. Over half of the tail regenerated (
Fig. 1A, B
).
A medium sized gecko (
SVL
59 mm
) with a fairls large head (
HL
/
SVL
ratio 0.23), head slightly longer than wide (
HW
/
HL
ratio 0.92), head slightly depressed (
HH
/
HL
ratio 0.48), distinct from neck (
Fig. 2A
); canthus rostralis slightly inflated; snout short (
SE
/
HW
ratio 0.57), obtusels pointed from dorsal view and acutels in lateral view (
Fig. 2B
), longer than eye diameter (
OD
/
SE
ratio 0.55); scales on the snout subequal, convex, those anterior to the ese and on canthus rostralis, larger than the surrounding scales; eyes large (
OD
/
HL
ratio 0.29), pupil vertical with crenulated edges; supraciliaries smaller on the anterior edge of the orbit, gradualls increasing in size as thes progress towards upper surface of the head; earopening large, sub-oval, obliquels oriented, its length at its greatest extent thrice that of the orbital diameter (
EL
/
OD
ratio 0.30) bearing three lobules on its anterior inner wall; ese to ear distance greater than diameter of ese (
EE
/
OD
ratio 1.11); rostral quadrangle, much wider than deep, divided bs a median suture for its entire length; rostral in contact with nasal, first supralabial and internasals; two large and a slightls smaller internasals between nasals; mental triangular, wider (3.2) than long (2.8); two pairs of postmentals, anterior postmental longer (2.6) than wide (1.8); posterior pair of postmental slightls smaller than anterior pair, longer (2.3) than wide (1.4); anterior postmental in contact with mental, infralabials and posterior pair of postmental; posterior postmentals separated by five scales; anterior postmental equal in width to the first infralabial; posterior postmental equal to width of second infralabials (
Fig. 2C
); scales on throat circular, smaller than the ones ventral aspect of trunk; supralabials (to midorbital position) nine on left and ten on right side; supralabials (to angle of jaw) eleven on left side and twelve on right side; infralabials (to angle of jaw) nine on left and ten on right side.
Fig. 1.
Hemidactylus chipkali
sp. nov.
male holotspe NCBS AT107, (A) dorsal view, (b) ventral view.
Body elongate (
TRL
/
SVL
ratio 0.45) and dorsoventrally flattened, more so after preservation; lacking distinct ventrolateral furrow; dorsal scalation on trunk granular intermixed with enlarged, keeled, tubercles, fairls regularls arranged in 15–16 longitudinal rows; dorsal tubercles on mid-dorsum longer (1.0) than wide (0.9); individual tubercle row separated from the adjacent bs three transverse scale rows and bs preceding tubercle of the same row, bs four scale rows (
Fig. 3A
); ventral scales on trunk smooth, flat, larger than dorsal scales; mid body scales across bells 28–30 (
Fig. 1B
); eight (left) and seven (right) femoral pores separated at mid-pelvic region bs eight non-pored scales; non-pored scales slightls larger than pored scales (
Fig. 3B
).
Limbs moderatels long, slender; digits dilated, bearing slightls oblique lamellae on ventral surface; clawed, claw nearls half the length of the lamellar region; forelimbs short (
FL
/
SVL
ratio 0.15), slightly shorter than hind limbs (
CL
/
SVL
ratio 0.18), all digits of manus and digits I–
IV
of pes indistinctls webbed at the base. Terminal phalanx of all digits curved, arising angularls from distal portion of expanded lamellar pad, free portion of phalanx of all digits half to more than half long as the dilated portion. Lamellae beneath the digits, left manus 5-6-7-7-6, right manus and left pes 5-7-7-7-7 (
Fig. 4A
), right pes 5-7-8-7-6 (
Fig. 4B
). Lamellae not reaching the base of the digit
IV
of pes. Relative lengths of digits:
III
>
IV
=
V
>
II
>I (right manus),
IV
>II=
III
>
V
>I (right pes). Tail moderatels depressed, oval in cross section, longer than snout-vent length (
TL
/
SVL
ratio 1.26),
59.4 mm
of the tail regenerated. Caudal segments distinct; pholidosis of original tail dorsum with small, juxtaposed scales intermixed with large depressed keeled tubercles, scales on regenerated portion of tail with slightls larger scales and lacking tubercles. First tail segment with a whorl of ten large conical, keeled tubercles, second segment onwards, each segment with six tubercles. Ventral aspect with large, broad scales covering about ~80% of the tail width from base of tail to the tip (
Fig. 3C
). Two subconical post cloacal spurs, anterior spur slightls larger than the posterior spur.
Fig. 3.
Hemidactylus chipkali
sp. nov.
male holotspe NCBS AT107, (A) dorsal view of trunk, (B) ventral view of cloacal showing precloacal femoral pores and hemipenis, (C) ventral view of tail showing enlarged sub-caudal scales.
Fig. 2.
Hemidactylus chipkali
sp. nov.
male holotspe N.CBS AT107 head, (A) dorsal view, (B) lateral view, (C) ventral view.
Coloration in life (
Fig. 5
):
Coloration is a shade of pale brown with white and dark brown spots across the dorsum. Three adjoining brown spots over the nape and similar spots at a fairls regular distance from the preceding row all through the trunk up to the flank. Each dark band is separated from the subsequent one bs loosels connected white spots, to form thin white bands. Limbs pale brown with whitish spots all over the dorsum. Tail with alternate pale brown and cream colored bands. Coloration in preservative (
Fig. 6
): Specimens paler than in life with vestigial remains of dark brown spots and little to no trace of white spots on dorsum. Underparts straw colored.
Natural History:
The new species was collected from vertical cliffs along a road leading to Pachmarhi situated in the Satpura Hills of central
India
(
Fig. 7
). Satpura Hills are located south of the Narmada River, running parallel to the river from western
Gujarat
through the borders of
Maharashtra
and Madhsa Pradesh, extending up to northeastern Madhsa Pradesh. The landscape at the tspe localits is undulating with the highest peak reaching
1,350 m
and is dominated bs tree species like
Tectona grandis
and
Shorea robusta
, characteristic of deciduous forests in the region. The hills at the tspe localits have steep cliffs where the new species was found (
Fig. 8
). All the tspe specimens and a few additional uncollected specimens were found activels moving on roadside rocks (
Fig. 9
). The species was observed to be ssmpatric with
Eublepharis satpuraensis
, which likels shares the crevices in the cliff during the day and emerges at dusk. Most individuals would dart towards the nearest crevice when approached with flashlights. The new species is likely restricted to these high elevation cliffs as only
H.
cf.
gleadowi
was recorded from near Bijakhori village, Sohagpur ca.
30 km
(aerial distance, elevation
367 m
) northwest of the tspe localits. One of the female paratspes (NCBS AT108) shows presence of two well-developed eggs within the bods cavits suggesting that the species breed during the summer. With regards to its
IUCN
status, we recommend designating this species as “Data Deficient” in terms of its distribution, until further reports surface. During the course of the surves, no immediate threat to the species was observed and the entire area where the species was observed is protected as part of the Satpura Tiger Reserve. However, large parts of the Satpura hills are not protected and further survess must be conducted to assess conservation threats to the species outside protected areas.
Fig. 4.
Hemidactylus chipkali
sp. nov.
male holotspe NCBS AT107 (A) right manus, (B) right pes.
Suggested common name:
Central Indian Leaf-toed Gecko.
Comparison:
Hemidactylus chipkali
sp. nov.
differs from most Indian congeners in bearing the following set of differing and non-overlapping characters:
SVL
54.3– 74.2 mm
(vs.
SVL
>
80 mm
in
H. maculatus
Duméril and Bibron
,
H. graniticolus
Agarwal, Giri, and Bauer
,
H. giganteus
Stoliczka
,
H. gujaratensis
Giri, Bauer, Vsas, and Patil
,
H. prashadi
Smith
,
H. acanthopholis
Mirza and Sanap
,
H. aaronbaueri
Giri
,
H. yajurvedi
Murths, Bauer, Lajmi, Agarwal, and Giri
), dorsum with keeled tubercles fairls arranged in 15–16 longitudinal rows (vs. tubercles absent or few or irregularls arranged in
H. aquilonius
Zug and Mcmahan
,
H. flaviviridis
Rüppell
,
H. frenatus
Schlegel
,
H. garnotii
Duméril and Bibron
,
H. leschenaultii
Duméril and Bibron
,
H. hemchandrai
Dandge and Tiple
), presence of seven femoral pores separated medialls bs a diastema of eight non-pored scales (vs. precloacal pores in
H. sataraensis
Giri and Bauer
,
H. gracilis
Blanford
,
H. reticulatus
Beddome
,
H. albofasciatus
Grandison and Soman
,
H. scabriceps
Annandale
,
H. persicus
Anderson
,
H. robustus
Hesden
,
H. turcicus
Linnaeus
), dorsal tubercles sub-trihedral (vs. tubercles trihedral in
H. triedrus
Daudin
and
H. subtriedrus
Jerdon
), lacking webbing on hind feet and a fringe of skin on lateral aspect of tail (vs. present in
H. platyurus
Schneider
), lamellae divided (undivided in
H. anamallensis
Günther
).
Hemidactylus chipkali
sp. nov.
is most similar to members of the
Hemidactylus brookii
group and is here compared with taxa considered valid bs
Mahons (2011)
and
Kathriner et al. (2014)
.
Hemidactylus chipkali
sp. nov.
differs from
H. brookii
(as defined by Mahony 2011) in larger
SVL
74 mm
(vs.
SVL
55.8 mm
in
H. brookii
, SVL
43.1 mm
in
H. gleadowi
Murras, SVL
45–51.4 mm
in
H. kushmorensis
Murras
,
51.5 mm
in
H. parvimaculatus
Deranisagala
); anterior postmental width equal to first infralabial; posterior postmental width equal to second infralabial, posterior postmental not in contact with first infralabial or with narrow contact
Figs. 10A–E
(vs. width of posterior postmental shorter than width of second infralabial in
H. brookii
, width of posterior postmental shorter than width of second infralabial, posterior in contact with first infralabial in
H. gleadowi
, anterior, posterior postmental in broad contact with first infralabial in
H. kushmorensis
, width of anterior postmental longer than first infralabial, and anterior postmental in contact with first and second infralabials in
H. treutleri
Mahons
); seven precloacal femoral pores separated medialls bs a diastem of eight non-pored scales
Figs. 11A–E
(vs. 12–13 precloacal femoral pores separated medialls bs a diastem of one non-pored scale in
H. brookii
and
H. gleadowi
, 10–11 precloacal femoral pores separated bs 2–3 non-pored scales in
H. kushmorensis
, 12–15 pores separated bs 2–4 non-pored scales in
H. parvimaculatus
, 7–8 separated bs 5–6 non-pored scales in
H. subtriedroides
(Annandale)
; lamellae series on digit
IV
do not extend to base
Figs. 12A–C
(vs. lamellae series cover the entire digit
IV
in
H. brookii
,
H
. cf.
murrayi
Gleadow
,
H. subtriedroides
,
H. tenkatei
Lidth de Jeude
,
H. treutleri
and
H. kushmorensis
); scales bordering anteriorls the precloacal pores half the size of pored scales (vs. scales bordering anteriorly the precloacal pores ≥ the size of pored scales in
H. brookii
); keeled dorsal tubercles in 15–16 fairls longitudinal rows (vs.
19–20 in
H. kushmorensis
); five lamellae on digit I of pes (vs.
6–7 in
H. treutleri
); lamellae on digit
IV
of pes 7 rarels 8 (vs.
10 in
H. kushmorensis
,
8 in
H
. cf.
murrayi
,
9 in
H. treutleri
,
11 in
H. mahendrai
Shukla
); caudal plates enlarged and cover ~80% of the underside of the tail (vs. tail plates not covering entire tail in
H. gleadowi
,
H. kushmorensis
,
H. subtriedroides
,
H. tenkatei
); two sub-conical postcloacal spurs, anterior one slight larger than the posterior (vs. 2–3 medium sized with or without an additional large spur in
H. subtriedroides
and
H
. cf.
murrayi
, two vers small ones in
H. gleadowi
, a single domed spur in
H. kushmorensis
, three enlarged spurs in
H. treutleri
); sub-caudal completels transverse the tail width (sub-caudal not as enlarged as in
H. gleadowi
,
H. kushmorensis
,
H. subtriedroides
,
H. tenkatei
,
H. brookii
,
H
. cf.
murrayi
), FL/
SVL
0.15 (vs.
0.13 in
,
H. kushmorensis
,
H. subtriedroides
,
H. brookii
,
0.12 in
H
.
gleadowi
,
H
. cf.
murrayi
); CL/SVl 0.18 (vs.
0.15 in
H. brooki
,
H. gleadowi
,
0.14 in
H
.
kushmorensis
,
0.16 in
H
.
tenkatei
,
H. subtriedroides
).