140 lines
22 KiB
XML
140 lines
22 KiB
XML
<document id="C2C7E5DB4D1453D34B10C0F7B6738F2F" ID-DOI="10.5281/zenodo.191764" ID-GBIF-Dataset="6e698068-a8fc-4ef6-a948-411838ed6fea" ID-ISSN="1175-5326" ID-Zenodo-Dep="191764" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1461131893048" checkinUser="plazi" docAuthor="Haas, Alexander, Wolter, Johanna, Hertwig, Stefan T. & Das, Indraneil" docDate="2009" docId="03CA87A2FFBDFFE069D2FF7AFC2FFEA6" docLanguage="en" docName="zt02302p018.pdf" docOrigin="Zootaxa 2302" docStyle="DocumentStyle:890A69B780ED73D6DB8551B71C8AC79E.4:Zootaxa.2009-2012.journal_article" docStyleId="890A69B780ED73D6DB8551B71C8AC79E" docStyleName="Zootaxa.2009-2012.journal_article" docStyleVersion="4" docTitle="Ansonia minuta" docType="treatment" docVersion="7" lastPageNumber="11" masterDocId="FFF3FFDAFFB4FFEA6945FFEDF811FFEA" masterDocTitle="Larval morphologies of three species of stream toads, genus Ansonia (Amphibia: Bufonidae) from East Malaysia (Borneo), with a key to known Bornean Ansonia tadpoles" masterLastPageNumber="18" masterPageNumber="1" pageNumber="10" updateTime="1698597939566" updateUser="plazi">
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<mods:title id="0EF7AD0B44DD05F64ABC58E589FE7D68">Larval morphologies of three species of stream toads, genus Ansonia (Amphibia: Bufonidae) from East Malaysia (Borneo), with a key to known Bornean Ansonia tadpoles</mods:title>
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<mods:namePart id="B9CABD1CDB8AF640DDC117C68D369039">Haas, Alexander</mods:namePart>
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<mods:namePart id="923AFA909A46BD872C14F46EFA24F754">Wolter, Johanna</mods:namePart>
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<mods:namePart id="11C1FE4127F812E0CF8A64BB3CBD3FCA">Hertwig, Stefan T.</mods:namePart>
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<mods:namePart id="1E9473D684BBC27A741921CAFA028ACB">Das, Indraneil</mods:namePart>
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<mods:date id="78D45D3B46C36811AAAC39E5F150817B">2009</mods:date>
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<treatment id="03CA87A2FFBDFFE069D2FF7AFC2FFEA6" ID-DOI="http://doi.org/10.5281/zenodo.6226157" ID-GBIF-Taxon="119627185" ID-Zenodo-Dep="6226157" LSID="urn:lsid:plazi:treatment:03CA87A2FFBDFFE069D2FF7AFC2FFEA6" httpUri="http://treatment.plazi.org/id/03CA87A2FFBDFFE069D2FF7AFC2FFEA6" lastPageId="10" lastPageNumber="11" pageId="9" pageNumber="10">
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<subSubSection id="C379653FFFBDFFE369D2FF7AFAD9FE09" pageId="9" pageNumber="10" type="nomenclature">
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<paragraph id="8BDC36B4FFBDFFE369D2FF7AF948FF5B" blockId="9.[151,345,151,177]" box="[151,345,151,177]" pageId="9" pageNumber="10">
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<heading id="D09481D8FFBDFFE369D2FF7AF948FF5B" bold="true" box="[151,345,151,177]" fontSize="11" level="1" pageId="9" pageNumber="10" reason="1">
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<taxonomicName id="4C634D37FFBDFFE369D2FF7AF948FF5B" ID-CoL="66XXR" box="[151,345,151,177]" class="Amphibia" family="Bufonidae" genus="Ansonia" kingdom="Animalia" order="Anura" pageId="9" pageNumber="10" phylum="Chordata" rank="species" species="minuta">
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<emphasis id="B917EAA6FFBDFFE369D2FF7AF948FF5B" bold="true" box="[151,345,151,177]" italics="true" pageId="9" pageNumber="10">Ansonia minuta</emphasis>
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</taxonomicName>
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</heading>
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</paragraph>
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<paragraph id="8BDC36B4FFBDFFE369D2FF0DFAD9FE09" blockId="9.[151,1437,224,2030]" pageId="9" pageNumber="10">
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<emphasis id="B917EAA6FFBDFFE369D2FF0DF959FF10" bold="true" box="[151,328,224,250]" pageId="9" pageNumber="10">Colour in life</emphasis>
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(
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<figureCitation id="13582A31FFBDFFE3681FFF0CF9B7FF11" box="[346,422,225,251]" captionStart="FIGURE 6" captionStartId="10.[151,255,1908,1932]" captionTargetBox="[152,1433,390,1883]" captionTargetId="figure@10.[152,1435,390,1883]" captionTargetPageId="10" captionText="FIGURE 6. Colouration in life of a Ansonia minuta tadpole (stage 39). (a) dorsal view; (b) ventral view; (c) lateral view." httpUri="https://zenodo.org/record/191770/files/figure.png" pageId="9" pageNumber="10">Fig. 6</figureCitation>
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). The background colour of the dorsum is dark brown, appearing almost black in daylight. The pigmentation is homogenous dorsally with only some features that need to be mentioned: The pigmentation is darkest between the eyes and the mid-dorsum of head-trunk region. Two pairs of conspicuous clusters of golden epidermal pigment cells are present. One is located on the lower cheek below the eye and a larger and denser one on the lower flank and lateral parts of the venter (
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<figureCitation id="13582A31FFBDFFE36AA8FE91FC24FE7C" box="[1005,1077,380,406]" captionStart="FIGURE 6" captionStartId="10.[151,255,1908,1932]" captionTargetBox="[152,1433,390,1883]" captionTargetId="figure@10.[152,1435,390,1883]" captionTargetPageId="10" captionText="FIGURE 6. Colouration in life of a Ansonia minuta tadpole (stage 39). (a) dorsal view; (b) ventral view; (c) lateral view." httpUri="https://zenodo.org/record/191770/files/figure.png" pageId="9" pageNumber="10">Fig. 6</figureCitation>
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b–c). Less well defined paired groups of golden cells may be present far rostrad on the snout, above the eye, on the dorsum in the trunk region, and scattered on the tail (mostly dorsal).
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</paragraph>
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</subSubSection>
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<subSubSection id="C379653FFFBDFFE06980FE1DFC2FFEA6" lastPageId="10" lastPageNumber="11" pageId="9" pageNumber="10" type="description">
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<paragraph id="8BDC36B4FFBDFFE36980FE1DFC47FD94" blockId="9.[151,1437,224,2030]" pageId="9" pageNumber="10">
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Epidermal melanocytes are small, approximately circular, with irregular fringes. The venter and oral disc are mostly unpigmented and translucent, except for the lateral parts at the transition to the flanks (
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<figureCitation id="13582A31FFBDFFE36C71FDFBFD6CFDDA" box="[1332,1405,534,560]" captionStart="FIGURE 6" captionStartId="10.[151,255,1908,1932]" captionTargetBox="[152,1433,390,1883]" captionTargetId="figure@10.[152,1435,390,1883]" captionTargetPageId="10" captionText="FIGURE 6. Colouration in life of a Ansonia minuta tadpole (stage 39). (a) dorsal view; (b) ventral view; (c) lateral view." httpUri="https://zenodo.org/record/191770/files/figure.png" pageId="9" pageNumber="10">Fig. 6</figureCitation>
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b). The gills and the heart shine through the ventral skin in red; developing front limbs are visible through the skin. The gut coil is arranged spirally and clearly visible in ventral view (
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<figureCitation id="13582A31FFBDFFE36AB4FD89FC26FD94" box="[1009,1079,612,638]" captionStart="FIGURE 6" captionStartId="10.[151,255,1908,1932]" captionTargetBox="[152,1433,390,1883]" captionTargetId="figure@10.[152,1435,390,1883]" captionTargetPageId="10" captionText="FIGURE 6. Colouration in life of a Ansonia minuta tadpole (stage 39). (a) dorsal view; (b) ventral view; (c) lateral view." httpUri="https://zenodo.org/record/191770/files/figure.png" pageId="9" pageNumber="10">Fig. 6</figureCitation>
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b).
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</paragraph>
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<paragraph id="8BDC36B4FFBDFFE36980FD67FB89FCF2" blockId="9.[151,1437,224,2030]" pageId="9" pageNumber="10">
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The iris is black with a clear golden ring around the pupil. Pigmentation is absent on the oral disc. In general the tail blood vessels are not conspicuous, but the
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<emphasis id="B917EAA6FFBDFFE36A17FD5CFC76FD20" box="[850,1127,689,714]" italics="true" pageId="9" pageNumber="10">vena caudalis ventralis</emphasis>
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is visible in ventral view. The ventral side of the muscular part of the tail is devoid of pigmentation. Tail fins are with light pigmentation with increasing melanocyte density toward the margins of the fin.
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</paragraph>
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<paragraph id="8BDC36B4FFBDFFE36980FCC8FC1CFC8C" blockId="9.[151,1437,224,2030]" pageId="9" pageNumber="10">The colour in preservation is similar to colouration in life, just lighter. The golden sheen of the described clusters of cells and the golden rim of the iris disappears upon preservation.</paragraph>
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<paragraph id="8BDC36B4FFBDFFE36980FC9FFD07FBA4" blockId="9.[151,1437,224,2030]" pageId="9" pageNumber="10">
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<emphasis id="B917EAA6FFBDFFE36980FC9FFA76FC66" bold="true" box="[197,615,882,908]" pageId="9" pageNumber="10">External morphological features.</emphasis>
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<taxonomicName id="4C634D37FFBDFFE36B2AFC9FFB3AFC61" box="[623,811,882,907]" class="Amphibia" family="Bufonidae" genus="Ansonia" kingdom="Animalia" order="Anura" pageId="9" pageNumber="10" phylum="Chordata" rank="species" species="minuta">
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<emphasis id="B917EAA6FFBDFFE36B2AFC9FFB3AFC61" box="[623,811,882,907]" italics="true" pageId="9" pageNumber="10">Ansonia minuta</emphasis>
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</taxonomicName>
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is a small to mid-sized tadpole. The maximum total length in our sample was
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<quantity id="4C9B9B51FFBDFFE36880FC74FA3FFC59" box="[453,558,921,947]" metricMagnitude="-2" metricUnit="m" metricValue="2.37" pageId="9" pageNumber="10" unit="mm" value="23.7">23.7 mm</quantity>
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at stage 39 (Tab. 2); the tail accounts for 61–64% of total length. In dorsal view the body contour is pear shaped with a slight constriction behind the level of the eye (
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<figureCitation id="13582A31FFBDFFE36D91FC2DFD0DFC30" box="[1236,1308,960,986]" captionStart="FIGURE 4" captionStartId="7.[151,255,1896,1920]" captionTargetBox="[171,1413,490,1863]" captionTargetId="figure@7.[168,1419,471,1871]" captionTargetPageId="7" captionText="FIGURE 4. External morphology of the three Ansonia species described herein. Each species is shown in lateral (above) and dorsal (below) views and close-up of oral disc (right). Tadpoles were drawn to the same scale to show differences in relative size, however, oral discs not drawn to scale. All scale bars 1 mm. (a) A. longidigita (ZMH A 09368), (b) A. minuta (ZMH A 10003), (c) A. platysoma (ZMH A 10008)." httpUri="https://zenodo.org/record/191768/files/figure.png" pageId="9" pageNumber="10">Fig. 4</figureCitation>
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b, 6a). The body is widest anterior to the eyes. The body is dorsoventrally depressed. The snout is greatly expanded bearing a large sucker (oral disc) ventrally. In life and adhering to the substrate, the snout profile is convex (
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<figureCitation id="13582A31FFBDFFE369DAFBD9F8F7FBA4" box="[159,230,1076,1102]" captionStart="FIGURE 4" captionStartId="7.[151,255,1896,1920]" captionTargetBox="[171,1413,490,1863]" captionTargetId="figure@7.[168,1419,471,1871]" captionTargetPageId="7" captionText="FIGURE 4. External morphology of the three Ansonia species described herein. Each species is shown in lateral (above) and dorsal (below) views and close-up of oral disc (right). Tadpoles were drawn to the same scale to show differences in relative size, however, oral discs not drawn to scale. All scale bars 1 mm. (a) A. longidigita (ZMH A 09368), (b) A. minuta (ZMH A 10003), (c) A. platysoma (ZMH A 10008)." httpUri="https://zenodo.org/record/191768/files/figure.png" pageId="9" pageNumber="10">Fig. 4</figureCitation>
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b, 6c). The eyes are located dorsally, at clear distance from the body contour in dorsal view.
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</paragraph>
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<paragraph id="8BDC36B4FFBDFFE36980FBB7F943FAE5" blockId="9.[151,1437,224,2030]" pageId="9" pageNumber="10">
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The external nares are much closer to the eyes than to the snout (
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<figureCitation id="13582A31FFBDFFE36A97FBB7FC0AFB9E" box="[978,1051,1114,1140]" captionStart="FIGURE 6" captionStartId="10.[151,255,1908,1932]" captionTargetBox="[152,1433,390,1883]" captionTargetId="figure@10.[152,1435,390,1883]" captionTargetPageId="10" captionText="FIGURE 6. Colouration in life of a Ansonia minuta tadpole (stage 39). (a) dorsal view; (b) ventral view; (c) lateral view." httpUri="https://zenodo.org/record/191770/files/figure.png" pageId="9" pageNumber="10">Fig. 6</figureCitation>
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a). The nares have a smooth rim without projections. The interorbital distance is 1.25±0.14 (mean±SD) times the internarinal distance. The spiracle is sinistral and the spiracular orifice is attached to the body wall medially, free laterally. The spiracle is low on the flank in lateral view when the tadpole is attached to a rock (
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<figureCitation id="13582A31FFBDFFE36D56FB23FC4CFB02" box="[1043,1117,1230,1256]" captionStart="FIGURE 6" captionStartId="10.[151,255,1908,1932]" captionTargetBox="[152,1433,390,1883]" captionTargetId="figure@10.[152,1435,390,1883]" captionTargetPageId="10" captionText="FIGURE 6. Colouration in life of a Ansonia minuta tadpole (stage 39). (a) dorsal view; (b) ventral view; (c) lateral view." httpUri="https://zenodo.org/record/191770/files/figure.png" pageId="9" pageNumber="10">Fig. 6</figureCitation>
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c). The spiracle is directed posterodorsally.
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</paragraph>
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<paragraph id="8BDC36B4FFBDFFE36980FAF1FC2CF952" blockId="9.[151,1437,224,2030]" pageId="9" pageNumber="10">
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The oral disc is ventral and as wide as the snout in adhesion state (
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<figureCitation id="13582A31FFBDFFE36A9DFAF1FC0EFADC" box="[984,1055,1308,1334]" captionStart="FIGURE 6" captionStartId="10.[151,255,1908,1932]" captionTargetBox="[152,1433,390,1883]" captionTargetId="figure@10.[152,1435,390,1883]" captionTargetPageId="10" captionText="FIGURE 6. Colouration in life of a Ansonia minuta tadpole (stage 39). (a) dorsal view; (b) ventral view; (c) lateral view." httpUri="https://zenodo.org/record/191770/files/figure.png" pageId="9" pageNumber="10">Fig. 6</figureCitation>
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b). An uniserial row of marginal papillation is present on the lower lip of the oral disc; the margin of the upper lip lacks papillae (
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<figureCitation id="13582A31FFBDFFE36C44FAAEFD58FAB7" box="[1281,1353,1347,1373]" captionStart="FIGURE 4" captionStartId="7.[151,255,1896,1920]" captionTargetBox="[171,1413,490,1863]" captionTargetId="figure@7.[168,1419,471,1871]" captionTargetPageId="7" captionText="FIGURE 4. External morphology of the three Ansonia species described herein. Each species is shown in lateral (above) and dorsal (below) views and close-up of oral disc (right). Tadpoles were drawn to the same scale to show differences in relative size, however, oral discs not drawn to scale. All scale bars 1 mm. (a) A. longidigita (ZMH A 09368), (b) A. minuta (ZMH A 10003), (c) A. platysoma (ZMH A 10008)." httpUri="https://zenodo.org/record/191768/files/figure.png" pageId="9" pageNumber="10">Fig. 4</figureCitation>
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b). The oral disc margins possess inconspicuous lateral indentations at the end of the papillae row. Papillae are short, blunt and adjoining. Flat, rounded submarginal papillae are present on the lower lip: one complete posterior row (18–21 papillae) and an incomplete anterior one (3–6 papillae on each side; gap medially). The labial ridges bear uniserial keratodont rows. The Labial Tooth Row Formula (LTRF) is 2/3. The upper lip keratodont rows reach the level of the lower lip keratodont rows caudally (
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<figureCitation id="13582A31FFBDFFE36AD7F9E9FBCAF9F4" box="[914,987,1540,1566]" captionStart="FIGURE 6" captionStartId="10.[151,255,1908,1932]" captionTargetBox="[152,1433,390,1883]" captionTargetId="figure@10.[152,1435,390,1883]" captionTargetPageId="10" captionText="FIGURE 6. Colouration in life of a Ansonia minuta tadpole (stage 39). (a) dorsal view; (b) ventral view; (c) lateral view." httpUri="https://zenodo.org/record/191770/files/figure.png" pageId="9" pageNumber="10">Fig. 6</figureCitation>
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b). The keratodonts are spoon-shaped with incisions along their edges (
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<figureCitation id="13582A31FFBDFFE36B59F9C6FA74F9AF" box="[540,613,1579,1605]" captionStart="FIGURE 6" captionStartId="10.[151,255,1908,1932]" captionTargetBox="[152,1433,390,1883]" captionTargetId="figure@10.[152,1435,390,1883]" captionTargetPageId="10" captionText="FIGURE 6. Colouration in life of a Ansonia minuta tadpole (stage 39). (a) dorsal view; (b) ventral view; (c) lateral view." httpUri="https://zenodo.org/record/191770/files/figure.png" pageId="9" pageNumber="10">Fig. 6</figureCitation>
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). Keratodonts are relatively more finely serrated on the posterior than on the anterior lower lip rows (
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<figureCitation id="13582A31FFBDFFE36B49F9BCFA44F981" box="[524,597,1617,1643]" captionStart="FIGURE 7" captionStartId="11.[151,263,1958,1982]" captionTargetBox="[386,1207,180,1930]" captionTargetId="figure@11.[386,1207,180,1931]" captionTargetPageId="11" captionText="FIGURE 7. SEM images of keratodont rows of Ansonia minuta (ZMH A 10003). Size, shape and serration differentiation of keratodonts varies from row to row. (a) – (e) keratodont rows from anterior to posterior; not to scale." httpUri="https://zenodo.org/record/191771/files/figure.png" pageId="9" pageNumber="10">Fig. 7</figureCitation>
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). Keratodonts on the two upper lip rows are less clearly differentiated (
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<figureCitation id="13582A31FFBDFFE369DAF995F8F5F978" box="[159,228,1656,1682]" captionStart="FIGURE 7" captionStartId="11.[151,263,1958,1982]" captionTargetBox="[386,1207,180,1930]" captionTargetId="figure@11.[386,1207,180,1931]" captionTargetPageId="11" captionText="FIGURE 7. SEM images of keratodont rows of Ansonia minuta (ZMH A 10003). Size, shape and serration differentiation of keratodonts varies from row to row. (a) – (e) keratodont rows from anterior to posterior; not to scale." httpUri="https://zenodo.org/record/191771/files/figure.png" pageId="9" pageNumber="10">Fig. 7</figureCitation>
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a–b). The upper beak comprises two short, widely spaced beak edges; the gap is 2.4–3.2x the length of one beak edge. The lower beak is shallow V-shaped and serrated along its edge.
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</paragraph>
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<paragraph id="8BDC36B4FFBDFFE36980F928F915F84A" blockId="9.[151,1437,224,2030]" pageId="9" pageNumber="10">
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The tail musculature is strong and almost as high as the trunk (in lateral view) at the trunk-tail junction. It reduces in height distally with a smooth but significant reduction in height at about mid-tail length. The dorsal tail fin starts only at ca. 40% of the tail length. Dorsal and ventral tail fins are of approximately equal heights. The tail reaches its maximum height at mid-tail position. The edges of the fins edges are only slightly convex in lateral view, the shape is spatulate, tapering to a narrowly rounded tip (
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<figureCitation id="13582A31FFBDFFE36ABEF88DFC52F890" box="[1019,1091,1888,1914]" captionStart="FIGURE 6" captionStartId="10.[151,255,1908,1932]" captionTargetBox="[152,1433,390,1883]" captionTargetId="figure@10.[152,1435,390,1883]" captionTargetPageId="10" captionText="FIGURE 6. Colouration in life of a Ansonia minuta tadpole (stage 39). (a) dorsal view; (b) ventral view; (c) lateral view." httpUri="https://zenodo.org/record/191770/files/figure.png" pageId="9" pageNumber="10">Fig. 6</figureCitation>
|
||
c). The anal siphon is located medially.
|
||
</paragraph>
|
||
<paragraph id="8BDC36B4FFBDFFE06980F840FA1AFF32" blockId="9.[151,1437,224,2030]" lastBlockId="10.[151,1436,152,332]" lastPageId="10" lastPageNumber="11" pageId="9" pageNumber="10">
|
||
<emphasis id="B917EAA6FFBDFFE36980F840F957F82D" bold="true" box="[197,326,1965,1991]" pageId="9" pageNumber="10">Variation.</emphasis>
|
||
The described pigmentation features did not vary among specimens examined, however, individuals may vary in the densities of golden pigment cells, and we do not know if early larval stages have them. The anterior rise of the tail fins was found smoother in some specimens than in the individual in
|
||
<figureCitation id="13582A31FFBEFFE06C12FF75FD8DFF58" box="[1367,1436,152,178]" captionStart="FIGURE 6" captionStartId="10.[151,255,1908,1932]" captionTargetBox="[152,1433,390,1883]" captionTargetId="figure@10.[152,1435,390,1883]" captionTargetPageId="10" captionText="FIGURE 6. Colouration in life of a Ansonia minuta tadpole (stage 39). (a) dorsal view; (b) ventral view; (c) lateral view." httpUri="https://zenodo.org/record/191770/files/figure.png" pageId="10" pageNumber="11">Fig. 6</figureCitation>
|
||
(see Tab 2 for metric variation).
|
||
</paragraph>
|
||
<paragraph id="8BDC36B4FFBEFFE06980FF08FC2FFEA6" blockId="10.[151,1436,152,332]" pageId="10" pageNumber="11">
|
||
<emphasis id="B917EAA6FFBEFFE06980FF08F987FF15" bold="true" box="[197,406,229,255]" pageId="10" pageNumber="11">Ecological notes.</emphasis>
|
||
We collected
|
||
<taxonomicName id="4C634D37FFBEFFE06B78FF08FAE6FF14" box="[573,759,229,254]" class="Amphibia" family="Bufonidae" genus="Ansonia" kingdom="Animalia" order="Anura" pageId="10" pageNumber="11" phylum="Chordata" rank="species" species="minuta">
|
||
<emphasis id="B917EAA6FFBEFFE06B78FF08FAE6FF14" box="[573,759,229,254]" italics="true" pageId="10" pageNumber="11">Ansonia minuta</emphasis>
|
||
</taxonomicName>
|
||
tadpoles from rock faces in strong, foaming (presumably high energy) current. Tadpoles appeared active during the day and also by night. We observed them on a spectrum of rock inclinations, from flat to vertical, but always in strong current.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |