861 research outputs found
FIGURE 5 in On the identity, nomenclatural status and authorship of Coluber monticolus Cantor, 1839 (Reptilia: Serpentes)
No full textFIGURE 5. Boiga multifasciata, adult female, grey morphotype, from near Birethanti, Kaski District, Gandaki Zone, Nepal, 1055 m a.s.l.Published as part of Tillack, Frank, Narayanan, Surya & Deepak, V., 2021, On the identity, nomenclatural status and authorship of Coluber monticolus Cantor, 1839 (Reptilia: Serpentes), pp. 134-146 in Zootaxa 4990 (1) on page 140, DOI: 10.11646/zootaxa.4990.1.8, http://zenodo.org/record/498299
Morphological and genetic variation in populations of Sitana marudhamneydhal and the validity of Sitana attenboroughii
No full textBalan, A., Jude, D., Narayanan, Surya, Varma, Sandeep, Deepak, V. (2021): Morphological and genetic variation in populations of Sitana marudhamneydhal and the validity of Sitana attenboroughii. Zootaxa 4964 (3): 523-540, DOI: https://doi.org/10.11646/zootaxa.4964.3.
On the distribution of Ahaetulla laudankia Deepak, Narayanan, Sarkar, Dutta & Mohapatra, 2019 and Lycodon travancoricus (Beddome, 1870) (Squamata, Colubridae) from Gujarat, India
No full textWe report the first record of a snake, Ahaetulla laudankia Deepak, Narayanan, Sarkar, Dutta & Mohapatra, 2019 (Colubridae, Ahaetullinae) and confirm the occurrence of Lycodon travancoricus (Beddome, 1870) (Colubridae, Colubrinae) from Gujarat state based on reptile surveys conducted in South, Central, and Saurashtra regions of the state. We also provide new information on the morphology, microhabitat, diet, and behaviour of these species
A new species of Ahaetulla Link, 1807 (Serpentes: Colubridae: Ahaetullinae) from India
No full textDeepak, V., Narayanan, Surya, Sarkar, Vivek, Dutta, Sushil K., Mohapatra, Pratyush P. (2019): A new species of Ahaetulla Link, 1807 (Serpentes: Colubridae: Ahaetullinae) from India. Journal of Natural History 53 (9): 497-516, DOI: 10.1080/00222933.2019.158959
FIGURE 2 in On the identity, nomenclatural status and authorship of Coluber monticolus Cantor, 1839 (Reptilia: Serpentes)
No full textFIGURE 2. Original painting (referred to as Fig. 11 in Cantor's manuscript, but no. 13 on the sheet) of the holotype of Coluber monticolus Cantor, 1839 from his original manuscript entitled "Indian Serpents–Innocuous–Collected, figured & described (1831–1837)", kept in the Bodleian Library, Oxford, U.K. (see Appendix Note 1). Reproduced with permission from the Bodleian Library, Oxford, U.K.Published as part of Tillack, Frank, Narayanan, Surya & Deepak, V., 2021, On the identity, nomenclatural status and authorship of Coluber monticolus Cantor, 1839 (Reptilia: Serpentes), pp. 134-146 in Zootaxa 4990 (1) on page 137, DOI: 10.11646/zootaxa.4990.1.8, http://zenodo.org/record/498299
FIGURE 8 in Morphological and molecular differences in two closely related Calotes Cuvier 1817 (Squamata: Agamidae: Draconinae) with the first record of Calotes medogensis Zhao & Li, 1984 from India
No full textFIGURE 8. Plates showing orientation of scales on the trunk region. A. Calotes medogensis, B. Calotes jerdoni. Image not to scale.Published as part of Boruah, Bitupan, Narayanan, Surya, Deepak, V. & Das, Abhijit, 2022, Morphological and molecular differences in two closely related Calotes Cuvier 1817 (Squamata: Agamidae: Draconinae) with the first record of Calotes medogensis Zhao & Li, 1984 from India, pp. 433-455 in Zootaxa 5219 (5) on page 448, DOI: 10.11646/zootaxa.5219.5.3, http://zenodo.org/record/743137
Ahaetulla laudankia Deepak & Narayanan & Sarkar & Dutta & Mohapatra 2019, sp. nov.
No full text<i>Ahaetulla laudankia</i> sp. nov. <p> <i>Dryophis mycterizans –</i> Sclater (1891) [in part]</p> <p> <i>Ahaetulla nasuta isabellinus –</i> Dutta et al. (2009)</p> <p>Proposed standard English name: Laudankia vine snake</p> <p> <i>Holotype.</i> ZSI-CZRC-6403, adult female, Bangriposi, Mayurbhanj district, Odisha state (22.142167N, 86.520025E), collected by Manoj V. Nair and S. K. Dutta, 15 June 2010.</p> <p> <i>Paratypes (2).</i> ZSI-CZRC-6404, adult male, Nilagiri, Balasore district, Odisha state (21.471232N, 86.634096E), collected by Vivek Sarkar, 15 March 2013; ZSI-R-26412 (Figure 4), subadult male, Madhapur, along Khajuriakata-Madhapur road, Harabhanga Tehsil, Boudh District, Odisha state (20.442518N, 84.503152E), collected by Pratyush P. Mohapatra on 5 May 2009.</p> <p> <i>Diagnosis</i></p> <p> A medium-sized <i>Ahaetulla</i> (largest TL 1184 mm (male), 1237 mm (female)) with dermal appendage; 192 <i>–</i> 202 ventrals, 154 <i>–</i> 185 divided subcaudals; 8 teeth on maxilla and 9 on palatine; dorsal scale reduction from 15 to 13 rows occurs between ventrals 143 <i>–</i> 147; ochre brown/chestnut brown dorsum with black spots, paler supralabials, white lower lip, and light orange/brick red venter with a pair of whitish line on both sides of the mid venter.</p> <p> Morphologically, <i>Ahaetulla laudankia</i> can be distinguished from all its congeners except <i>Ahaetulla nasuta</i> sensu lato (see discussion), <i>A. pulverulenta</i> and <i>A. anomala</i> in having a long dermal appendage (vs. snout without dermal appendage) (Figure 5).</p> <p> <i>Ahaetulla laudankia</i> differs from <i>A. nasuta</i> sensu lato in having a higher number of ventrals: explicitly <i>–</i> 192 <i>–</i> 202 (vs. 168 <i>–</i> 184 in <i>A. nasuta</i> from Sri Lanka (both with long and short dermal appendages); vs. 171 <i>–</i> 181 in <i>A. nasuta</i> from India (both with long and short dermal appendages); 169 <i>–</i> 181 in <i>A. nasuta</i> cf <i>isabellina</i> (see discussion), and 168 ventrals in Wall <i>’</i> s type of <i>Dryophis mycterizans isabellinus</i> = <i>A. nasuta isabellina</i>) (Tables 2, 3 and S4).</p> <p> <i>Ahaetulla laudankia</i> can be distinguished from <i>A. pulverulenta</i> in having its dermal appendage formed by a single scale with mid-dorsal groove (vs. dermal appendage formed by multiple scales without mid-dorsal groove), and dermal appendage shorter than horizontal eye diameter (vs. dermal appendage longer than horizontal eye diameter).</p> <p> <i>Ahaetulla laudankia</i> differs from <i>A. anomala</i> in having a higher number of ventral scales <i>–</i> 192 <i>–</i> 202 (vs. 170 <i>–</i> 189); dermal appendage formed by a single scale (vs. multiple scales) and coloration <i>–</i> adults of both sexes have a brown dorsum speckled with black and brick-red ventrals (vs. brown adult females and green adult males) and in having an un-patterned head (vs. head with a black rhomboidal pattern).</p> <p> Based on scale reduction, <i>Ahaetulla laudankia</i> can be distinguished from <i>A. nasuta</i> sensu lato (both morphs with long or short dermal appendages from Sri Lanka as well as India), <i>A. nasuta</i> cf. <i>isabellina</i> and <i>A. anomala</i>. In <i>A. laudankia</i> scale reduction from 15 to 13 rows occurs between ventrals 143 <i>–</i> 147 in four out of five specimens examined by us (Table 3) vs. 110 <i>–</i> 127 in <i>A. nasuta</i> with long dermal appendage and 121 <i>–</i> 137 in <i>A. nasuta</i> with a short dermal appendage from India; vs. 117 <i>–</i> 120 in <i>A. nasuta</i> with long dermal appendage and 119 <i>–</i> 132 in <i>A. nasuta</i> with short dermal appendage from Sri Lanka; vs. 110 <i>–</i> 128 in <i>A. nasuta</i> cf. <i>isabellina</i> and vs. 119 <i>–</i> 129 in <i>A. anomala</i>.</p> <p> <i>Description of holotype (ZSI-CZRC-6403).</i> (Figure 3; Table 3). A medium sized snake (maximum recorded TL 1237 mm), ochre-brown dorsum speckled with black dots, brick-red ventral scales, tail 32.4% of the TL. Specimen partially dehydrated; 7 cm longitudinal ventral incision into coelom at 500 mm from snout tip. Body subtriangular, slightly flatten on venter, widest at midbody, gently tapering anteriorly and sharply tapering posteriorly; tail much more strongly tapered; head broader (11.9 mm) than tall (7.9 mm), distinctly wider than neck.</p> <p>In dorsal view, head elongate and triangular anterior to eye, ends with an elongated dermal appendage; temporal region gently converging posteriorly; in lateral view, head steeply tapering downwards from eye to nostril; scales on top of head smooth, abutting along midline rather than imbricate/overlapping. Length of dermal appendage smaller (2.1 mm) than horizontal eye diameter (4.7 mm) and 6% of head length (HL 34.0 mm); canthus rostral is prominent; nostrils situated anteriorly to snout, closer to snout than eye (EN 7.1 mm, NS 6.2 mm); nasals elongate and roughly lanceolate (6.1 mm), nostril squarish located on posterior end of nasal scale; frontal rhomboidal, longer than wide, wider anteriorly (FL 7.9 mm, FW 4.5 mm); parietals longer than supraocular, smaller than frontal scale and longer than prefrontals (PAL 7.1 mm, SOL 6.1 mm); left supraocular tapering down completely touching first temporal, on the right supraocular not touching the first temporal; PrF length almost equal to IN (PrFL 4.9 mm, INL 5.1 mm). One preocular and two presuboculars, lower right presubocular smaller than postocular; left postocular smaller than both presuboculars.</p> <p>Eight supralabials; 6th largest, 8th longest and 4th smallest; 1st, 2nd and 3rd SL subequal, small; 5th and 7th SL subequal but of different shapes; 1st SL touches rostral, nasal and internasal; 2nd touches internasal and prefrontals; 3rd contacts first two preoculars and prefrontals; 4th SL in contact with both preoculars while 5th touches orbit, postocular and anterior temporal; 6th contacts anterior and lower posterior temporal and 7th in touch with lower posterior temporal. Eye oval, pupil elongate (long horizontal axis); temporals 1 + 2 + 2; second pair upper temporal largest on both sides; parietals larger than other head scales; midline inter-parietal suture much longer than parietal projection behind suture, shorter than frontal; left parietal contacts frontal, supraocular, anterior, second and upper third temporal plus three other scales; right parietal contacts postocular and only two other scales instead of three. Mental small, subtriangular, wider than long; 8 asymmetric infralabials; first ILs touching each other; fifth largest; 2nd IL smallest and 5th longest. Two pairs of genials; first pair largest, longer than broad, touching each other; second pair not in contact; anterior genials contact 1st to 4th IL; posterior genials contact 4th and 5th IL. Six pre-ventrals; anteriormost ventral separated from posterior genials by 6 scales; separated from posteriormost infralabials by 8 scales. Anal scale divided, right overlapping left; 194 ventrals; 154 divided subcaudals, first pair notably smaller and less regular than second pair; terminal scute pointed, longer than wide. Dorsal scale rows 15-15-13. Scale reduction formula is as follows:</p> <p> <b>3 + 4 (145)</b></p> <p> <b>15(10)––––––- 13 (194)</b></p> <p> <b>4 + 5 (147)</b></p>Published as part of <i>Deepak, V., Narayanan, Surya, Sarkar, Vivek, Dutta, Sushil K. & Mohapatra, Pratyush P., 2019, A new species of Ahaetulla Link, 1807 (Serpentes: Colubridae: Ahaetullinae) from India, pp. 497-516 in Journal of Natural History 53 (9)</i> on pages 501-512, DOI: 10.1080/00222933.2019.1589591, <a href="http://zenodo.org/record/3675685">http://zenodo.org/record/3675685</a>
FIGURE 1 in Morphological and genetic variation in populations of Sitana marudhamneydhal and the validity of Sitana attenboroughii
No full textFIGURE 1. Habitat in the study area. A. Mayiladumparai in Kallidaikurichi, B. Sunset Point in Kanyakumari, C. Swamithopu in Kanyakumari and D. Poovar in Trivandrum, Kerala. Note we did not sample at Sunset Point in this study but used samples which were collected in the past.Published as part of Balan, A., Jude, D., Narayanan, Surya, Varma, Sandeep & Deepak, V., 2021, Morphological and genetic variation in populations of Sitana marudhamneydhal and the validity of Sitana attenboroughii, pp. 523-540 in Zootaxa 4964 (3) on page 524, DOI: 10.11646/zootaxa.4964.3.5, http://zenodo.org/record/474239
APPENDIX 3 in Morphological and molecular differences in two closely related Calotes Cuvier 1817 (Squamata: Agamidae: Draconinae) with the first record of Calotes medogensis Zhao & Li, 1984 from India
No full textAPPENDIX 3. Ventral head view of the types of C. jerdoni. A. BMNH 1946.8.11.49, B. BMNH 1946.8.11.50, C. BMNH 1946.8.11.51, D. BMNH 1946.8.11.53, E. BMNH 1946.8.11.54 (lectotype), F. BMNH 1946.8.11.56. Scale bar= 10 mm.Published as part of Boruah, Bitupan, Narayanan, Surya, Deepak, V. & Das, Abhijit, 2022, Morphological and molecular differences in two closely related Calotes Cuvier 1817 (Squamata: Agamidae: Draconinae) with the first record of Calotes medogensis Zhao & Li, 1984 from India, pp. 433-455 in Zootaxa 5219 (5) on page 454, DOI: 10.11646/zootaxa.5219.5.3, http://zenodo.org/record/743137
Figure 4 in A new species of Ahaetulla Link, 1807 (Serpentes: Colubridae: Ahaetullinae) from India
No full textFigure 4. Ahaetulla laudankia sp. nov. Paratype sub-adult male (ZSI-R-26412) from Madhapur, Boudh district, Odisha state.Published as part of Deepak, V., Narayanan, Surya, Sarkar, Vivek, Dutta, Sushil K. & Mohapatra, Pratyush P., 2019, A new species of Ahaetulla Link, 1807 (Serpentes: Colubridae: Ahaetullinae) from India, pp. 497-516 in Journal of Natural History 53 (9) on page 508, DOI: 10.1080/00222933.2019.1589591, http://zenodo.org/record/367568
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