1,721,344 research outputs found
FIGURE 10 in Amphibians and reptiles in North Sweden: distribution, habitat affinities, and abundance (Classes: Amphibia and Reptilia)
No full textFIGURE 10. Distribution of Vipera berus in North Sweden. Colored parts of the Baltic in Ångermanland, Västerbotten, and Norrbotten represent areas with widespread occurrence on offshore islands. Triangles at sea in Medelpad and Hälsingland represent more singular offshore occurrences. Question marks denote areas where the western range limit is poorly known.Published as part of Elmberg, Johan, 2023, Amphibians and reptiles in North Sweden: distribution, habitat affinities, and abundance (Classes: Amphibia and Reptilia), pp. 301-335 in Zootaxa 5301 (3) on page 323, DOI: 10.11646/zootaxa.5301.3.1, http://zenodo.org/record/803043
FIGURE 20 in Amphibians and reptiles in North Sweden: distribution, habitat affinities, and abundance (Classes: Amphibia and Reptilia)
No full textFIGURE 20. Talus slopes and screes provide communal hibernation sites for Vipera berus, offering frost-free conditions also in case of early winter weather with little insulating snow cover. Such sites invariably face SW–SE and have early snowmelt that permits earlier spring emergence than in surrounding areas. Mating usually takes place here, after which vipers disperse to summer habitats visible in the background. This picture is from one of the northernmost known hibernation sites in Sweden at 68oN. Etnoluhtinvaara, Torne lappmark, Northern Boreal region. Photo: Stefan Andersson.Published as part of Elmberg, Johan, 2023, Amphibians and reptiles in North Sweden: distribution, habitat affinities, and abundance (Classes: Amphibia and Reptilia), pp. 301-335 in Zootaxa 5301 (3) on page 332, DOI: 10.11646/zootaxa.5301.3.1, http://zenodo.org/record/803043
Thalassophina Smith
No full textThalassophina Smith Thalassophina viperina (Schmidt): (Smith, 1926; Bourret, 1934, 1936; Shuntov, 1962; Harding & Welch, 1980; Tran & Nguyên, 1980; Kharin, 1984 b; Golay et al., 1993; Tran & Nguyên, 1995; Nguyên & Hó, 1996; Dotsenko, 1999; Nguyên et al., 2005; Kharin, 2006; Nguyên et al., 2009). Diagnostic characters: Easy to identify by its ventrals, which are broad anteriorly and narrow posteriorly. Scale rows around neck 27–34; scale rows around body 37–50; ventrals 226–274. Maxillary teeth behind fangs 5. Colouration: Body grey above, white below, with or without bands. Size: 95 cm. General distribution: From the Arabian Gulf to South China Sea, Borneo and Java (David & Ineich, 1999).Published as part of Rasmussen, Arne Redsted, Elmberg, Johan, Gravlund, Peter & Ineich, Ivan, 2011, Sea snakes (Serpentes: subfamilies Hydrophiinae and Laticaudinae) in Vietnam: a comprehensive checklist and an updated identification key, pp. 1-20 in Zootaxa 2894 on pages 9-10, DOI: 10.5281/zenodo.27766
Thalassophis Schmidt
No full textThalassophis Schmidt Thalassophis anomalus Schmidt : (Kharin, 1984 b, 2006). Diagnostic characters: A pair of elongated shields separate the nasals, rostral divided into four or five scales. Head shields with thickened edges. Scale rows around neck 27–30; scale rows around body 31–35; ventrals 210– 256. Maxillary teeth behind fangs 5. Colouration: Greyish above. Whitish below with dark bands, which taper to a point laterally or continue as narrow bands ventrally to encircle the body. Size: 81 cm. General distribution: Singapore, Gulf of Thailand, Vietnam, East Sumatra, Borneo and Moluccas (David & Ineich, 1999).Published as part of Rasmussen, Arne Redsted, Elmberg, Johan, Gravlund, Peter & Ineich, Ivan, 2011, Sea snakes (Serpentes: subfamilies Hydrophiinae and Laticaudinae) in Vietnam: a comprehensive checklist and an updated identification key, pp. 1-20 in Zootaxa 2894 on page 10, DOI: 10.5281/zenodo.27766
Pelamis Daudin
No full textPelamis Daudin Pelamis platura (Linnaeus): (Smith, 1926; Bourret, 1934, 1936; Shuntov, 1962; Pickwell, 1972; Harding & Welch, 1980; Kharin, 1984 b; Golay et al., 1993; Tran & Nguyên, 1995; Nguyên & Hó, 1996; Dotsenko, 1999; Nguyên et al., 2005; Kharin, 2006; Nguyên et al., 2009). Diagnostic characters: Scale rows around body 49–67; ventrals 264–406 or broken up and similar to adjacent scales. Maxillary teeth behind fangs 7–11. Colouration: Unique among sea snakes but great variation body black above, yellow below. These colours meet distinctly laterally, but the exact level varies. Posteriorly (mostly on tail) the black and yellow colours are broken up to form spots or even irregular hour-glass-shaped transverse bands. Size: 88 cm. General distribution: The Indian Ocean and the Pacific (Ineich, 1988; David & Ineich, 1999; Kharin, 2007). Remarks: Pelamis platura is the most widely distributed species of all snakes and it is pelagic (Hecht et al., 1974).Published as part of Rasmussen, Arne Redsted, Elmberg, Johan, Gravlund, Peter & Ineich, Ivan, 2011, Sea snakes (Serpentes: subfamilies Hydrophiinae and Laticaudinae) in Vietnam: a comprehensive checklist and an updated identification key, pp. 1-20 in Zootaxa 2894 on page 9, DOI: 10.5281/zenodo.27766
Acalyptophis Boulenger
No full textAcalyptophis Boulenger Acalyptophis peronii (Duméril): (Kharin, 1984 b; Zhao & Adler, 1993, 2006). Diagnostic characters: The only sea snake with spines on the head: parietal and frontal scales broken up, supra- and postoculars and adjacent scales with spines posteriorly. Scale rows around neck 18–24, rarely up to 27; scale rows around body 23–31, rarely 21 or 32; ventrals 142–222. Maxillary teeth behind fangs 5–8. Colouration: Body cream, grey or pale brown above, paler below, with brown/black bands, which are brighter ventrally. Sometimes has dark small bars or spots between the bands, tapering to a point on the sides. Size: 128 cm. General distribution: Gulf of Thailand, Vietnam, China, Taiwan, Hong Kong and the Australian region (Smith, 1926; David & Ineich, 1999).Published as part of Rasmussen, Arne Redsted, Elmberg, Johan, Gravlund, Peter & Ineich, Ivan, 2011, Sea snakes (Serpentes: subfamilies Hydrophiinae and Laticaudinae) in Vietnam: a comprehensive checklist and an updated identification key, pp. 1-20 in Zootaxa 2894 on page 3, DOI: 10.5281/zenodo.27766
Kolpophis Smith
No full textKolpophis Smith Kolpophis annandalei (Laidlaw): (Smith, 1926; Bourret, 1934, 1936; Minton, 1975; Harding & Welch, 1980; Tran & Nguyên, 1980; Kharin, 1984 b; Welch, 1988; Das, 1993; Golay et al., 1993; Tran & Nguyên, 1995; Nguyên & Hó, 1996; Dotsenko, 1999; Nguyên et al., 2005; Kharin, 2006; Rasmussen et al., 2007; Nguyên et al., 2009). Diagnostic characters: Head shields irregularly divided. Head large, body stout, covered with small irregular scales. Has very high scale row counts around neck (62–82) and body (74–93). Ventrals 320–368. Maxillary teeth behind fangs 6–7. Colouration: Body yellowish with pale grey bands above, much broader than their interspaces, narrowing on sides. With age the colour becomes pale grey above, whitish below and the bands disappear. Size: 91 cm. General distribution: Singapore, Gulf of Thailand, South China Sea, Borneo and Java (Das, 1993; David & Ineich, 1999).Published as part of Rasmussen, Arne Redsted, Elmberg, Johan, Gravlund, Peter & Ineich, Ivan, 2011, Sea snakes (Serpentes: subfamilies Hydrophiinae and Laticaudinae) in Vietnam: a comprehensive checklist and an updated identification key, pp. 1-20 in Zootaxa 2894 on page 8, DOI: 10.5281/zenodo.27766
Enhydrina Gray
No full textEnhydrina Gray Enhydrina schistosa (Daudin): (Smith, 1920; Bourret, 1934, 1936; Shuntov, 1962; Pickwell, 1972; Minton, 1975; Harding & Welch, 1980; Tran & Nguyên, 1980; Kharin, 1984 b; Gasperetti, 1988; Welch, 1988; Golay et al., 1993; Tran & Nguyên, 1995; Nguyên & Hó, 1996; Nguyên et al., 2005; Kharin, 2006; Nguyên et al., 2009). Diagnostic characters: Mental narrow, elongated and hidden in a groove. Scale rows around neck 40–55; scale rows around body 49–66; ventrals small but distinct, sometimes missing in the most anterior part of body, 239–322. Maxillary teeth behind fangs 3–4. Colouration: Body grey or bluish-grey above, whitish-grey below, with dark or black bands, which usually disappear with age. Size: 140 cm. General distribution: Arabian Gulf, India, Sri Lanka, Indo-Malayan Archipelago, South China Sea, Indonesia and the Australian region (David & Ineich, 1999). Remarks: Aggressive and highly venomous.Published as part of Rasmussen, Arne Redsted, Elmberg, Johan, Gravlund, Peter & Ineich, Ivan, 2011, Sea snakes (Serpentes: subfamilies Hydrophiinae and Laticaudinae) in Vietnam: a comprehensive checklist and an updated identification key, pp. 1-20 in Zootaxa 2894 on page 4, DOI: 10.5281/zenodo.27766
Aipysurus Lacepede
No full textAipysurus Lacepède Aipysurus eydouxii (Gray): (Bourret, 1934, 1936; Minton, 1975; Tran & Nguyên, 1980; Kharin, 1984 b; Welch, 1988; Nguyên & Hó, 1996; Dotsenko, 1999; Nguyên et al., 2005; Kharin, 2006; Nguyên et al., 2009). Diagnostic characters: Maxillary bone extending forward beyond palatine. Large ventrals, each being at least three times as broad as the adjacent body scales. Scale rows around neck 15–17; scale rows around body 17; 124– 155 ventrals, slightly notched on posterior border. Maxillary teeth behind fangs 7–12 and very small. Colouration: Body brownish or olive green above, paler below, with yellow or pale brown irregular bands, which may expand laterally and break up ventrally. Scales within bands usually with dark margins. Size: 110 cm. General distribution: West Malaysia, Gulf of Thailand, Vietnam, Indonesia and Australian region (David & Ineich, 1999). Remarks: The only species in the genus Aipysurus found outside the Australian region.Published as part of Rasmussen, Arne Redsted, Elmberg, Johan, Gravlund, Peter & Ineich, Ivan, 2011, Sea snakes (Serpentes: subfamilies Hydrophiinae and Laticaudinae) in Vietnam: a comprehensive checklist and an updated identification key, pp. 1-20 in Zootaxa 2894 on page 4, DOI: 10.5281/zenodo.27766
Emydocephalus Krefft
No full text<i>Emydocephalus</i> Krefft <p> <b> <i>Emydocephalus annulatus</i> Krefft:</b> (Dotsenko, 1999; Rasmussen & Ineich, 2010).</p> <p> <b>Diagnostic characters:</b> Three supralabials, the second very long. Large ventrals, each three or more times as broad as the adjacent body scales. Scale rows around neck 15; scale rows around body 17, rarely 15; ventrals 125– 146. Only rudimentary maxillary teeth behind fangs. <b>Colouration:</b> Highly variable, body ranging from uniform black or brown to yellow, with or without bands. <b>Size:</b> 103 cm. <b>General distribution</b>: Vietnam, Philippines and the Australian region (David & Ineich, 1999; Dotsenko, 1999; Alcala <i>et al.</i>, 2000; Rasmussen & Ineich, 2010). <b>Remarks:</b> Feeds only on fish eggs (McCarthy, 1987).</p>Published as part of <i>Rasmussen, Arne Redsted, Elmberg, Johan, Gravlund, Peter & Ineich, Ivan, 2011, Sea snakes (Serpentes: subfamilies Hydrophiinae and Laticaudinae) in Vietnam: a comprehensive checklist and an updated identification key, pp. 1-20 in Zootaxa 2894</i> on page 4, DOI: <a href="http://zenodo.org/record/277666">10.5281/zenodo.277666</a>
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