175 lines
25 KiB
XML
175 lines
25 KiB
XML
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<mods:title id="0005533E2322A5404C986743E3E7A58F">The identity of catfishes identified as Mystus cavasius (Hamilton, 1822) (Teleostei: Bagridae), with a description of a new species from Myanmar.</mods:title>
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<mods:namePart id="AB239FC5061DDA58DFB9FA8A3D79C509">Prosanta Chakrabarty</mods:namePart>
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<mods:namePart id="32D61022E2E32178C2AE184337762F4F">Heok Hee Ng</mods:namePart>
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<mods:typeOfResource id="0F0BAD839BE0B61B5C98D2D5B4ED846B">text</mods:typeOfResource>
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<mods:date id="BD37D48098B61A70CAD794954870D5AE">2005</mods:date>
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<treatment id="3448C014AD7A48A59D590A5684487753" ID-DOI="http://doi.org/10.5281/zenodo.6266088" ID-GBIF-Taxon="100121543" ID-Zenodo-Dep="6266088" LSID="urn:lsid:plazi:treatment:3448C014AD7A48A59D590A5684487753" httpUri="http://treatment.plazi.org/id/3448C014AD7A48A59D590A5684487753" lastPageNumber="20" pageNumber="17">
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<subSubSection id="5D011EF4828A5FAD41FBC4C1C5850CAB" type="nomenclature">
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<paragraph id="084E801F401FFDAA5730596C659F7D9A" pageNumber="17">
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[[
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<taxonomicName id="93B90D5FEC314301AC5DD9A1D83F2D2B" ID-CoL="45FVT" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="17" phylum="Chordata" rank="species" species="seengtee">Mystus seengtee (Sykes)</taxonomicName>
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]]
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</paragraph>
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</subSubSection>
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<subSubSection id="CD595E2251EA5D2D027ED9E3DE415BA0" type="discussion">
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<paragraph id="2721604975FC7636290D82289BD0027F" pageNumber="17">Discussion</paragraph>
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<paragraph id="7283EF45A6D76A0B9DDEA507A87EEA19" pageNumber="17">
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<taxonomicName id="5995B441B2E6AB80E28A6FD2DFFC547A" LSID-ZBK="urn:lsid:zoobank.org:act:FBD77B33-ABCD-491E-96A6-AC2E87410493" family="Pimelodidae" genus="Pimelodus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Pimelodus seengtee Sykes 1839:164" order="Siluriformes" pageNumber="17" phylum="Chordata" rank="species" species="seengtee">Pimelodus seengtee</taxonomicName>
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was originally described from the Deccan region in southwestern India from a holotype 6 inches (=152.4 mm) long (this length almost certainly refers to TL). There are two specimens in the Natural History Museum (London) attributed to Sykes (see Roberts, 1994): a dried, stuffed specimen 130 mm SL (BMNH 1857.6.13.154), and a wet specimen 113 mm SL (BMNH 1860.3.19.955). Before we discuss the identities of the two specimens, it is instructive to briefly review the history of the ichthyological material collected by Colonel William Henry Sykes during his Deccan survey. This material was initially deposited in two institutions: the Zoological Society of London (Greenwood, 1976; however, it is interesting to note that there are no written records that Sykes ever deposited fish specimens there, see Wheeler, 1997) and the Honourable East India Company's India Museum (sometimes also referred to as the "East India Museum " or the "East Indian Museum "; Whitehead & Talwar, 1976). The collections of the Zoological Society of London were sold to the Natural History Museum [then British Museum (Natural History)] in 1855-56 (Boulenger, 1906; Mitchell, 1929; Greenwood, 1976; Wheeler, 1997) and the collections of the India Museum were transferred to the Natural History Museum in 1859-60 (Boulenger, 1906). These may have been the reasons why BMNH 1857.6.13.154 (purchased from the Zoological Society of London) and BMNH 1860.3.19.955 (donated by the Honourable East India Company; such material is indicated in the registers as "...presented by the Secretary of State for India") were both regarded as potential types of
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<taxonomicName id="DA3A032DCA68DF815374019243CF6DF4" LSID-ZBK="urn:lsid:zoobank.org:act:FBD77B33-ABCD-491E-96A6-AC2E87410493" family="Pimelodidae" genus="Pimelodus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Pimelodus seengtee Sykes 1839:164" order="Siluriformes" pageNumber="17" phylum="Chordata" rank="species" species="seengtee">Pimelodus seengtee</taxonomicName>
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(see Roberts, 1994).
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</paragraph>
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<paragraph id="A92AF64B5B983B96D9B67F08EA9FCAEF" lastPageNumber="18" pageNumber="17">
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Although the wet specimen (BMNH 1860.3.19.955) is closer in size to that of the holotype (
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<taxonomicName id="A8F8E891CC701C9770AAAF8172876D51" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="17" phylum="Chordata" rank="species" species="seengtee">M. seengtee</taxonomicName>
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has a caudal fin of about 30% SL in length; this would make BMNH 1857.6.13.154 about 169 mm TL and BMNH 1860.3.19.955 about 146.9 mm TL), our examination of a photograph of this specimen shows that it is not
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<taxonomicName id="42A2FD25BE77D110050276A817FFE355" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="17" phylum="Chordata" rank="species" species="seengtee">M. seengtee</taxonomicName>
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, but
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<taxonomicName id="7C707B22846BAF78CCD53B401CC6E5D1" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="17" phylum="Chordata" rank="species" species="cavasius">M. cavasius</taxonomicName>
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(as the specimen has a gently-sloping predorsal profile making an angle of about 25° to the horizontal typically seen in
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<taxonomicName id="D561EB87A0B86CCDF0A5B0810C1D5F69" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="17" phylum="Chordata" rank="species" species="cavasius">M. cavasius</taxonomicName>
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). This is confirmed by the gill raker counts (21) of this specimen (J. Maclaine pers. comm. to HHN), which correspond to
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<taxonomicName id="0E1CCA4205AC9499CE72F319B53BDDA0" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="17" phylum="Chordata" rank="species" species="cavasius">M. cavasius</taxonomicName>
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(but not
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<taxonomicName id="485ADB67107243535FCB2AD7F50AACCF" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="17" phylum="Chordata" rank="species" species="seengtee">M. seengtee</taxonomicName>
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). Therefore BMNH 1860.3.19.955 cannot be the holotype of
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<taxonomicName id="25E4758A77D284298BE921EDA82A2003" LSID-ZBK="urn:lsid:zoobank.org:act:FBD77B33-ABCD-491E-96A6-AC2E87410493" family="Pimelodidae" genus="Pimelodus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Pimelodus seengtee Sykes 1839:164" order="Siluriformes" pageNumber="17" phylum="Chordata" rank="species" species="seengtee">Pimelodus seengtee</taxonomicName>
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.
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</paragraph>
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<paragraph id="D0055239A7B0F32F6EC782E75E35C5B7" pageNumber="18">
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The dried specimen (BMNH 1857.6.13.154) is also approximately the same size as that stated for the holotype. However, it is poorly prepared, having the head strongly arched backwards such that it is no longer possible to accurately determine the slope of the predorsal profile (Fig. 8). Furthermore, it is not possible to confirm the identity of the dried specimen by counting the gill rakers, because the gill openings have been sealed shut (J. Maclaine, pers. comm. to NHH); it also highly likely that the gill arches have been removed in the course of preparation. Given the uncertainty concerning the specific identity of BMNH 1857.6.13.154, we have refrained from identifying it as the holotype of
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<taxonomicName id="108CB59A425784EFDE44AE35A7448A7A" LSID-ZBK="urn:lsid:zoobank.org:act:FBD77B33-ABCD-491E-96A6-AC2E87410493" family="Pimelodidae" genus="Pimelodus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Pimelodus seengtee Sykes 1839:164" order="Siluriformes" pageNumber="18" phylum="Chordata" rank="species" species="seengtee">Pimelodus seengtee</taxonomicName>
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. Since we are not even sure if it is conspecific with southern Indian material we have examined, we tentatively identify it as
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<taxonomicName id="E54CFE32C080945CB646586714C00A78" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="18" phylum="Chordata" rank="species" species="sp. incerta sedis">Mystus sp. incerta sedis</taxonomicName>
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.
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</paragraph>
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<paragraph id="3725EDCD6924982EB4E16203467192E1" pageNumber="18">
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Although it is frequently acknowledged that the fishes collected by Sykes (particularly the types of the species he described) are lost (e.g. Ferraris & Runge, 1999), our investigations uncover evidence that some of this material may still be extant. One other specimen (BMNH 1857.6.13.158) also acquired from the Zoological Society (and accessioned) at the same time bears the name
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<taxonomicName id="9D853C8A1A0B209FEF829A079CD1943B" class="Malacostraca" family="Scalopidiidae" genus="Hypophthalmus" higherTaxonomySource="CoL" kingdom="Animalia" order="Decapoda" pageNumber="18" phylum="Arthropoda" rank="species" species="goongorensis">Hypophthalmus goongorensis</taxonomicName>
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(most likely a misspelling of
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<taxonomicName id="578047089A23FE8A2A215C0769A78694" LSID-ZBK="urn:lsid:zoobank.org:act:A6001AFC-5EA6-4799-9369-14DA670EB8C3" family="Pimelodidae" genus="Hypophthalmus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Hypophthalmus goongwaree Sykes 1839:163" order="Siluriformes" pageNumber="18" phylum="Chordata" rank="species" species="goongwaree">Hypophthalmus goongwaree</taxonomicName>
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) in the register, and its status as the holotype of this species should be investigated. This is beyond the scope of this study, but we mention it here to draw attention to the problem.
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</paragraph>
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<paragraph id="E35BE8BE6E9FB4F099713AF6B7E48097" lastPageNumber="19" pageNumber="18">
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Both
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<taxonomicName id="DDA3D3716BD195E3D91C298F03BE028D" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="18" phylum="Chordata" rank="species" species="seengtee">M. seengtee</taxonomicName>
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and
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<taxonomicName id="10C7F4D17ACB2BD41EFBD1637C1CB634" LSID-ZBK="urn:lsid:zoobank.org:act:D8F1931C-5237-4A86-A537-20F04D7CEB04" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Mystus falcarius Chakrabarty & Ng 2005" order="Siluriformes" pageNumber="18" phylum="Chordata" rank="species" species="falcarius">M. falcarius</taxonomicName>
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can be distinguished from
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<taxonomicName id="DE36BB394CCDD040F455098AA63B248B" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="18" phylum="Chordata" rank="species" species="cavasius">M. cavasius</taxonomicName>
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by the differences in the number of rakers on the first gill arch. Although the gill raker counts can be variable among
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<taxonomicName id="69FE4A91F56890C7FE279DFB7C98A26F" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="18" phylum="Chordata" rank="genus">Mystus</taxonomicName>
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species (Roberts, 1989), the differences in counts as being indicative of interspecific differences are further supported by the presence of other characters in predorsal profile shape, dorsal fin shape, and coloration unique to the southern Indian, northern Indian and Myanmar populations of “
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<taxonomicName id="31F6F25AA46FC3A79D67D8876227F530" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="18" phylum="Chordata" rank="species" species="cavasius">M. cavasius</taxonomicName>
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”. Although some overlap exists between gill raker counts for
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<taxonomicName id="F96575D6F8AEEC9770527C7282C26FFA" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="18" phylum="Chordata" rank="species" species="cavasius">M. cavasius</taxonomicName>
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(n=70) and both
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<taxonomicName id="322CF75AA458D308FDBB25BC79E28B27" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="18" phylum="Chordata" rank="species" species="seengtee">M. seengtee</taxonomicName>
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(n=25) and
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<taxonomicName id="4C8097C25C49EACB135E3D0058A1367D" LSID-ZBK="urn:lsid:zoobank.org:act:D8F1931C-5237-4A86-A537-20F04D7CEB04" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Mystus falcarius Chakrabarty & Ng 2005" order="Siluriformes" pageNumber="18" phylum="Chordata" rank="species" species="falcarius">M. falcarius</taxonomicName>
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(n=29) combined, the overlap only occurs at the uppermost limit of the gill raker counts for
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<taxonomicName id="96181B0B4B00701AA038F10463F26741" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="18" phylum="Chordata" rank="species" species="cavasius">M. cavasius</taxonomicName>
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(22) and only in one out of 70 specimens of
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<taxonomicName id="91EB230B8066D80313E4E6E4242DA33D" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="18" phylum="Chordata" rank="species" species="cavasius">M. cavasius</taxonomicName>
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examined. We note that because of this and the fact that gill raker counts can be useful in distinguishing species of
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<taxonomicName id="F168D1531750763D8BF791E49ED5899C" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="18" phylum="Chordata" rank="genus">Mystus</taxonomicName>
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(e.g. Roberts, 1992), the differences observed are treated as interspecific in nature. Furthermore, it is unlikely that the variation in gill raker counts is the result of clinal variation, as no clear geographic pattern exists (Roberts, 1994). The slope of the predorsal profile is consistent for all of the material we have examined and it can be reliably used to distinguish
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<taxonomicName id="9842E13309CA795A586863E7D3A19AB8" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="18" phylum="Chordata" rank="species" species="seengtee">M. seengtee</taxonomicName>
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from
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<taxonomicName id="53A88AE5ED2B9E5F9FF34789D5D4BFC0" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="18" phylum="Chordata" rank="species" species="cavasius">M. cavasius</taxonomicName>
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. The shape of the humeral mark can be reliably used to distinguish
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<taxonomicName id="2E1BC0D30EE03CC62D8914DD1ACA534A" LSID-ZBK="urn:lsid:zoobank.org:act:D8F1931C-5237-4A86-A537-20F04D7CEB04" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Mystus falcarius Chakrabarty & Ng 2005" order="Siluriformes" pageNumber="18" phylum="Chordata" rank="species" species="falcarius">M. falcarius</taxonomicName>
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from
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<taxonomicName id="88B3980CAB098BDBAFBCF1CED6D7ABC6" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="18" phylum="Chordata" rank="species" species="cavasius">M. cavasius</taxonomicName>
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and
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<taxonomicName id="62F6ECD735CD4280F335CF28815D68D1" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="18" phylum="Chordata" rank="species" species="seengtee">M. seengtee</taxonomicName>
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. In
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<taxonomicName id="7A289467F080F25CE129733DD9330476" LSID-ZBK="urn:lsid:zoobank.org:act:D8F1931C-5237-4A86-A537-20F04D7CEB04" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Mystus falcarius Chakrabarty & Ng 2005" order="Siluriformes" pageNumber="18" phylum="Chordata" rank="species" species="falcarius">M. falcarius</taxonomicName>
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, this mark is always crescent shaped (vs. ovoid). The ovoid humeral mark is also more prominent in nearly all of the
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<taxonomicName id="292CACC04381BF604AD7C33802456949" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="18" phylum="Chordata" rank="species" species="cavasius">M. cavasius</taxonomicName>
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material we have examined (except in UMMZ 238800, BMNH 1938.2.22.122, BMNH 1938.2.22.123 and BMNH 1938.2.22.124-128) when compared to that of
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<taxonomicName id="31DADBAD95DF54BFCB083C0E957F8E6C" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="18" phylum="Chordata" rank="species" species="seengtee">M. seengtee</taxonomicName>
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. However, since we do not know the live coloration of
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<taxonomicName id="D8E58DEB9BCA3840468FCC10BBF85A74" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="18" phylum="Chordata" rank="species" species="seengtee">M. seengtee</taxonomicName>
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(the humeral mark is prominent in the live coloration of
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<taxonomicName id="FD40876F54B9DCF7D4D47E2DAE654E37" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="18" phylum="Chordata" rank="species" species="cavasius">M. cavasius</taxonomicName>
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) and cannot rule out the faded condition in
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<taxonomicName id="140855D032651662195FA7C731C9B879" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="18" phylum="Chordata" rank="species" species="seengtee">M. seengtee</taxonomicName>
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as a preservation artifact, we have refrained from using it as a diagnostic character. The dark spot at the base of the dorsal spine is very prominent in
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<taxonomicName id="31ED75D92179CCEB57658A3BEA74737F" LSID-ZBK="urn:lsid:zoobank.org:act:D8F1931C-5237-4A86-A537-20F04D7CEB04" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Mystus falcarius Chakrabarty & Ng 2005" order="Siluriformes" pageNumber="18" phylum="Chordata" rank="species" species="falcarius">M. falcarius</taxonomicName>
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, more so than in either
|
|
<taxonomicName id="8B2C3D406D1114CCC85F99059E386D87" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="18" phylum="Chordata" rank="species" species="cavasius">M. cavasius</taxonomicName>
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or
|
|
<taxonomicName id="12FCD977B5F5085AFE9FD58DBEF17D22" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="18" phylum="Chordata" rank="species" species="seengtee">M. seengtee</taxonomicName>
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|
. This is evident even in old material which has not been properly fixed and in which the color is considerably faded (BMNH 1891.11.210-219).
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</paragraph>
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<paragraph id="238DF4AF76A006B05CEEF190D6444276" pageNumber="19">
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|
The species diversity and distributional patterns as observed in
|
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<taxonomicName id="5783D1F4CD0237C0EC2A2934ABAB165B" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="19" phylum="Chordata" rank="species" species="cavasius">M. cavasius</taxonomicName>
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|
,
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<taxonomicName id="FDFBF171830B76CA17E705C13DC0486A" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="19" phylum="Chordata" rank="species" species="seengtee">M. seengtee</taxonomicName>
|
|
and
|
|
<taxonomicName id="D20A8DDB8EFF04321B1E79F8E7CD2CE0" LSID-ZBK="urn:lsid:zoobank.org:act:D8F1931C-5237-4A86-A537-20F04D7CEB04" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Mystus falcarius Chakrabarty & Ng 2005" order="Siluriformes" pageNumber="19" phylum="Chordata" rank="species" species="falcarius">M. falcarius</taxonomicName>
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|
(with three distinct species distributed in northern India, southern India and Myanmar respectively) is fairly common among riverine catfishes in this region. For example, similar distributional patterns have been observed in other catfish genera, most notably
|
|
<taxonomicName id="DECE83FB84819FC225CF09114CA2BB75" family="Bagridae" genus="Rita" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="19" phylum="Chordata" rank="genus">Rita</taxonomicName>
|
|
(see Ferraris, 1999) and
|
|
<taxonomicName id="B8F6755EAF6FEC4584B9E960DFACC007" LSID-ZBK="urn:lsid:zoobank.org:act:FA21FA6F-AC80-43FF-ABE5-FE7A17E958A2" family="Sisoridae" genus="Gagata" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Gagata Bleeker 1858:204, 206" order="Siluriformes" pageNumber="19" phylum="Chordata" rank="genus">Gagata</taxonomicName>
|
|
(see Roberts & Ferraris, 1998).
|
|
</paragraph>
|
|
<paragraph id="76D73728D17A3D90540953952555DE37" pageNumber="19">
|
|
A species of
|
|
<taxonomicName id="0FFFDE12BB8731EC86116FAE03A0E8E4" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="19" phylum="Chordata" rank="genus">Mystus</taxonomicName>
|
|
with a long-based adipose fin similar to
|
|
<taxonomicName id="0D52F87C3BCCB7DF47079080BC0F4E85" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="19" phylum="Chordata" rank="species" species="seengtee">M. seengtee</taxonomicName>
|
|
(currently identified as
|
|
<taxonomicName id="B2A3C7B619BF616006C3AEE867CE9B70" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="19" phylum="Chordata" rank="species" species="cavasius">M. cavasius</taxonomicName>
|
|
) is also found in Sri Lanka. A comparison based on a photograph of a Sri Lankan specimen in Pethiyagoda (1991) shows that it differs from
|
|
<taxonomicName id="0AD9896018B8256AB17F55A70F1D5303" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="19" phylum="Chordata" rank="species" species="seengtee">M. seengtee</taxonomicName>
|
|
in having a more falcate dorsal fin and the apparent absence of a dark spot in front of the dorsal-spine base. The identity of the Sri Lankan species is being further investigated in a separate study by the second author and colleagues.
|
|
</paragraph>
|
|
</subSubSection>
|
|
<subSubSection id="7F9421F23A67F0F9E0A66ED6B501A0AA" type="materials_examined">
|
|
<paragraph id="E555B96ABA00A8630C99A405F03AA1D0" pageNumber="19">Additional material examined</paragraph>
|
|
<paragraph id="252D1B1A79367A1A08814201EA7849B4" pageNumber="20">
|
|
<taxonomicName id="ECEFE99DD7F6A3D35123D136DEDD201D" family="Bagridae" genus="Mystus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="20" phylum="Chordata" rank="species" species="sp. incerta sedis">Mystus sp. incerta sedis</taxonomicName>
|
|
:
|
|
</paragraph>
|
|
<paragraph id="0EE4F7F02FE10B0CF7B7D3BC70B85BFA" pageNumber="20">BMNH 1857.6.13.154, 130 mm SL; India: purchased from the Zoological Society of London (photograph examined).</paragraph>
|
|
</subSubSection>
|
|
</treatment>
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</document> |