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| Hovedforfatter: | |
|---|---|
| Format: | Recurso digital |
| Sprog: | |
| Udgivet: |
Zenodo
2010
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| Fag: | |
| Online adgang: | https://doi.org/10.5281/zenodo.17816862 |
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Indholdsfortegnelse:
- <p><b>Autapomorphies of <i>Thoracocharax stellatus</i>:</b></p><p><b>1.</b> Opening between orbitosphenoid and pterosphenoid (39): (1> 0) present, rounded or ovate, usually margined by frontal dorsally. Paralleled in nodes 205 and 302.</p><p><b>2.</b> Ventral extent of third infraorbital (64): (0> 1) not reaching horizontal arm of preopercle, at least anteriorly. Paralleled in nodes 168 and 180.</p><p><b>3.</b> Number of maxillary teeth (135): (0> 1) two or more.</p><p><b>4.</b> Articulation between ventral margin of metapterygoid and posterodorsal margin of quadrate (155): (0> 1) present. Paralleled in nodes 176 and 299 and in <i>Deuterodon langei</i>, <i>Heterocharax macrolepis</i>, <i>Pristella maxillaris</i>, and <i>Roeboides descalvadensis</i>.</p><p><b>5.</b> First basibranchial (182): (1> 0) absent or much reduced, not articulating anteriorly with basihyal. Paralleled in node 163.</p><p><b>6.</b> Number of branchiostegal rays (213): (0> 1) five. Paralleled in <i>Characidium borellii</i>, <i>Hoplias</i> cf. <i>malabaricus</i>, <i>Piaractus mesopotamicus</i>, and <i>Rhaphiodon vulpinus</i>.</p><p><b>7.</b> Number of dorsal pterygiophores (278): (0> 1) 12 or more. Paralleled in the Serrasalmidae and in <i>Characidium rachovii</i>, <i>Distichodus maculatus</i>, and <i>Hoplias</i> cf. <i>malabaricus</i>.</p><p><b>8.</b> Number of branched anal-fin rays (289): (0> 1) 35 or more. Paralleled in nodes 207 and 212 and in <i>Gymnocorymbus ternetzi</i>, <i>Metynnis maculatus</i>, <i>Piabucus melanostomus</i>, <i>Pseudocorynopoma doriae</i>, <i>Rhaphiodon vulpinus</i>, and <i>Stethaprion erythrops</i>. Some trees: Paralleled in node 261 and in <i>Markiana nigripinnis</i>.</p><p><b>9.</b> Scales covering anal-fin base (327): (0> 1) several rows covering basal third of anal fin. Paralleled in the Serrasalmidae, in nodes 210 and 221, and in <i>Bario steindachneri</i>, <i>Markiana nigripinnis</i>, <i>Paragoniates alburnus</i>, <i>Rhaphiodon vulpinus</i>, and <i>Roeboides microlepis</i>.</p><p><b>10.</b> Ventral union of gill membranes (349): (0> 1) joined along length of isthmus but not attached to isthmus. Paralleled in the Iguanodectinae and in node 162.</p>