treatments-xml/data/6D/8B/65/6D8B658B0E5C9AEA8FAB7A6B8102CB87.xml
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<mods:title id="E523DFFA3E93319E63709948CBFE2466">Genera of the Asian Catfish Families Sisoridae and Erethistidae (Teleostei: Siluriformes).</mods:title>
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<mods:namePart id="9C366F4C84D3B4FA1B7DAB344E33680E">Alfred W. Thomson</mods:namePart>
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<treatment id="6D8B658B0E5C9AEA8FAB7A6B8102CB87" ID-DOI="http://doi.org/10.5281/zenodo.6253860" ID-GBIF-Taxon="100118828" ID-Zenodo-Dep="6253860" LSID="urn:lsid:plazi:treatment:6D8B658B0E5C9AEA8FAB7A6B8102CB87" httpUri="http://treatment.plazi.org/id/6D8B658B0E5C9AEA8FAB7A6B8102CB87" lastPageNumber="7" pageNumber="7">
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<taxonomicName id="74D4D98D81D62D5359F56991D0F2576F" ID-CoL="623P3" class="Actinopterygii" family="Erethistidae" kingdom="Animalia" order="Siluriformes" pageNumber="7" phylum="Chordata" rank="family">Erethistidae Bleeker, 1862</taxonomicName>
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<paragraph id="A2473AC00DBE52ABF17E71C5BDB2C693" lastPageNumber="8" pageNumber="7">
Externally, erethistids are easily distinguished from sisorids by having a pectoral girdle with a long coracoid process that extends well beyond the base of the pectoral fin (Fig. 1). The process can be felt through the skin in all erethistids and is visible externally in all erethistids except some specimens of
<taxonomicName id="B536B924C79452E6F4229342897BA55F" LSID-ZBK="urn:lsid:zoobank.org:act:BED2BB84-3FBC-4BDC-9032-0D537AD3F726" class="Actinopterygii" family="Erethistidae" genus="Pseudolaguvia" kingdom="Animalia" lsidName-ZBK="Pseudolaguvia Misra 1976:253" order="Siluriformes" pageNumber="7" phylum="Chordata" rank="genus">Pseudolaguvia</taxonomicName>
. Sisorids lack a prominent coracoid
<pageStartToken id="1B9CC155FCFE4D3C37094CAC21E89839" pageNumber="8">process</pageStartToken>
; when present, the process is only detectable as a small nub at the base of the pectoral fin. It is never long and prominent as in erethistids. Amblycipitids differ from erethistids in possessing a cuplike fold of skin in front of the pectoral fin, and a dorsal fin that is covered with thick skin and has only a weak spine. Erethistids lack a cuplike fold of skin in front of the pectoral fin, and have a dorsal fin with a strong spine and no thick covering of skin (de Pinna 1996). Akysids, including
<taxonomicName id="ADC7B5EF6DCB887C61F3B07D1F0C3AE4" authority="Roberts, 1989" authorityName="Roberts" authorityYear="1989" class="Actinopterygii" family="Parakysidae" higherTaxonomySource="GBIF" kingdom="Animalia" order="Siluriformes" pageNumber="7" phylum="Chordata" rank="family">Parakysidae</taxonomicName>
of Roberts, 1989, differ from erethistids in having the nostrils on each side of the head widely separated, with a barbel on the posterior nostril. Erethistids have nostrils close together, separated by a nasal barbel. Osteological traits distinguishing
<taxonomicName id="34BAA465E00EED37270D4DA43D93740E" class="Actinopterygii" family="Amblycipitidae" kingdom="Animalia" order="Siluriformes" pageNumber="7" phylum="Chordata" rank="family">Amblycipitidae</taxonomicName>
and
<taxonomicName id="87DB339D118E5888E3365FFF29E2061A" class="Actinopterygii" family="Akysidae" kingdom="Animalia" order="Siluriformes" pageNumber="7" phylum="Chordata" rank="family">Akysidae</taxonomicName>
from erethistids are given by de Pinna (1996). Following are diagnoses and descriptions of valid genera of
<taxonomicName id="B003B08B20DA69160C1B5B6193581EA7" class="Actinopterygii" family="Erethistidae" kingdom="Animalia" order="Siluriformes" pageNumber="7" phylum="Chordata" rank="family">Erethistidae</taxonomicName>
, with lists of included species and their geographic distributions. Genera are arranged alphabetically. Diagnostic traits are summarized in Table 2.
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