<documentid="6EE0707E1789E51BC889A92694CA7355"ID-CLB-Dataset="299670"ID-DOI="10.5281/zenodo.11512126"ID-GBIF-Dataset="522b8de7-880d-40ca-803e-aa5a3a05c5f6"ID-ISSN="0068-547X"ID-Zenodo-Dep="11512126"IM.bibliography_approvedBy="carolina"IM.illustrations_approvedBy="carolina"IM.materialsCitations_approvedBy="carolina"IM.metadata_approvedBy="felipe"IM.tables_approvedBy="carolina"IM.taxonomicNames_approvedBy="carolina"IM.treatmentCitations_approvedBy="carolina"IM.treatments_approvedBy="carolina"checkinTime="1717719049762"checkinUser="felipe"docAuthor="Iwamoto, Tomio, Nakayama, Naohide, Shao, Kwang-Tsao & Table, Hsuan-Ching Ho"docDate="2015"docId="039F87BDFF9A111CAB64E752FF41FDF9"docLanguage="en"docName="ProcCalifAcadSci.62.3.31-126.pdf"docOrigin="Proceedings of the California Academy of Sciences 62 (3)"docStyle="DocumentStyle:E411DA009AF5E7F9A7E023431E2B7D5B.2:ProcCalifAcadSci.2015-.journal_article"docStyleId="E411DA009AF5E7F9A7E023431E2B7D5B"docStyleName="ProcCalifAcadSci.2015-.journal_article"docStyleVersion="2"docTitle="Nezumia coheni Iwamoto and Merrett 1997"docType="treatment"docVersion="9"lastPageNumber="96"masterDocId="FFA6FFC5FFDA115EAB1FE201FF8EFFEA"masterDocTitle="Synopsis of the Grenadier Fishes (Gadiformes; Teleostei) of Taiwan"masterLastPageNumber="126"masterPageNumber="31"pageNumber="95"updateTime="1720664413385"updateUser="ExternalLinkService"zenodo-license-document="CC-BY-4.0">
<mods:affiliationid="3754FE9637468F8BA5CCF67F70A02D1B">Section of Ichthyology, California Academy of Sciences, 55 Music Concourse Drive, San Francisco, CA 94118, USA;</mods:affiliation>
<mods:affiliationid="560279C1182D91A9ED6A1BF048477B11">Research Center for Biodiversity, Academia Sinica No. 128, Sec. 2, Academia Road, Nankang, Taipei 115, Taiwan;</mods:affiliation>
<taxonomicNameid="4C364D28FF9A111EAB64E752FEDFFA81"ID-CoL="47C3D"authority="Iwamoto and Merrett, 1997"authorityName="Iwamoto and Merrett"authorityYear="1997"box="[123,337,1363,1387]"family="Macrouridae"genus="Nezumia"isUncertain="true"kingdom="Animalia"order="Gadiformes"pageId="64"pageNumber="95"phylum="Chordata"rank="species"species="coheni">Nezumia cf. coheni</taxonomicName>
<bibRefCitationid="EFA74B5AFF9A111EA95AE752FD6AFA81"author="MERRETT, N. R. & R. L. HAEDRICH"box="[581,740,1363,1387]"pageId="64"pageNumber="95"refId="ref80600"refString="MERRETT, N. R., AND R. L. HAEDRICH. 1997. Deep-sea Demersal Fish and Fisheries. Chapman and Hall, London, England, UK. 282 pp."type="book"year="1997">Merrett, 1997</bibRefCitation>
<figureCitationid="130D2A2EFF9A111EAB64E772FE86FA62"box="[123,264,1395,1417]"captionStart="FIGURE"captionStartId="65.[155,167,1251,1270]"captionTargetBox="[120,1176,216,1247]"captionTargetId="figure-285@65.[120,1176,216,1247]"captionTargetPageId="65"captionText="FIGURE 21. Nezumia cf. coheni. A. ASIZP 63791, 1 of 3, 333+ mm TL, fresh. B-C.ASIZP 63791, 1 of 3, 290+ mm TK. B. lateral view. C. lateral view of left head."figureDoi="http://doi.org/10.5281/zenodo.11512172"httpUri="https://zenodo.org/record/11512172/files/figure.png"pageId="64"pageNumber="95">Figure 21A–C</figureCitation>
<taxonomicNameid="4C364D28FF9A111EAB64E79BFE98FA44"ID-CoL="47C3D"authorityName="Iwamoto and Merrett"authorityYear="1997"box="[123,278,1433,1455]"family="Macrouridae"genus="Nezumia"kingdom="Animalia"order="Gadiformes"pageId="64"pageNumber="95"phylum="Chordata"rank="species"species="coheni">
<bibRefCitationid="EFA74B5AFF9A111EAAF3E79BFDFBFA45"author="MERRETT, N. R. & R. L. HAEDRICH"box="[492,629,1433,1455]"pageId="64"pageNumber="95"refId="ref80600"refString="MERRETT, N. R., AND R. L. HAEDRICH. 1997. Deep-sea Demersal Fish and Fisheries. Chapman and Hall, London, England, UK. 282 pp."type="book"year="1997">Merrett, 1997</bibRefCitation>
<bibRefCitationid="EFA74B5AFF9A111EA998E798FCA1FA44"author="SHAO, K. - T. & T. IWAMOTO & H. - C. HO & T. - Y. CHEN & C. - Y. CHEN"box="[647,815,1433,1455]"pageId="64"pageNumber="95"refId="ref81544"refString="SHAO, K. - T., T. IWAMOTO, H. - C. HO, T. - Y. CHEN, AND C. - Y. CHEN. 2008. Species composition and distribution pattern of grenadiers (family Bathygadidae, Macrouridae and Macrouroididae) from Taiwan. Pages 17 - 29 in A. Orlov and T. Iwamoto, eds., Grenadiers of the World Oceans: Biology, Stock Assessment, and Fisheries. American Fisheries Society, Symposium 63, Bethesda, Maryland, USA. 484 pp."type="book"year="2008">Shao et al., 2008</bibRefCitation>
<collectionCodeid="ED27AE6EFF9A111EA8C5E798FB83FA44"box="[986,1037,1433,1454]"country="USA"lsid="urn:lsid:biocol.org:col:14109"name="Southwest Texas State University"pageId="64"pageNumber="95"type="Herbarium">SWT</collectionCode>
<collectionCodeid="ED27AE6EFF9A111EA901E7E2FDD9FA11"box="[542,599,1507,1531]"country="USA"lsid="urn:lsid:biocol.org:col:14109"name="Southwest Texas State University"pageId="64"pageNumber="95"type="Herbarium">SWT</collectionCode>
<specimenCodeid="DB909ED0FF9A111EA977E7E2FD75FA11"box="[616,763,1507,1531]"collectionCode="ASIZP"country="Taiwan"httpUri="http://grbio.org/cool/zgdx-i3kf"name="Academia Sinica Institute of Zoology, Ichthyology Collection"pageId="64"pageNumber="95">ASIZP 63791</specimenCode>
<collectionCodeid="ED27AE6EFF9A111EA9E9E402FC85F9F1"box="[758,779,1539,1563]"country="Canada"lsid="urn:lsid:biocol.org:col:13946"name="Royal British Columbia Museum - Herbarium"pageId="64"pageNumber="95"type="Museum">V</collectionCode>
9–10; GR-I (inner) 2+7, total GR-II (outer /inner) 8–9 / 9–10; scale rows below 2D origin 7.0–8.5, under midbase of 1D 6.5; lateral-line scales over distance equal to predorsal length 33–35. Snout conical with smoothly rounded dorsal and ventral profiles, length 31–33% HL, interorbital flat, its width 22–24%, orbit 27–32%, suborbital almost vertical, gently rounded, depth 17–19%; upper jaw 33–35%; barbel 15–20%; outer gill slit 12–16%; pre-A length 165–186%; outer
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to A origin 44–50%; body depth about 77–92%; 1D-2D interspace 38–52%; height 1D 94–98%; length 1D base 24–30%; length P 51–61%; length outer
<collectionCodeid="ED27AE6EFF9B111FAA73E745FEF1FAB1"box="[364,383,1348,1371]"country="Canada"lsid="urn:lsid:biocol.org:col:13946"name="Royal British Columbia Museum - Herbarium"pageId="65"pageNumber="96"type="Museum">V</collectionCode>
49–54%. Underside of snout mostly naked; underside of head becoming increasingly covered with scales ventrally and posteriorly from about vertical through nasal fossa; pores and sensory papillae of cephalic lateralis system densely arrayed on underside of head, especially under snout and mandibles, producing a roughened surface texture; scales densely covered with broadly lanceolate spinules. All fins dark, blackish; dermal window of light organ relatively small and located between inner margins of
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bases. Color in alcohol overall dark brownish; abdomen, gill covers, and gill membranes blackish; mouth dark but somewhat pale along outer margins; gums pale. Attains at least
<taxonomicNameid="4C364D28FF9B111FABE2E6E2FE2CFB1C"authorityName="Iwamoto and Merrett"authorityYear="1997"box="[253,418,1251,1270]"family="Macrouridae"genus="Nezumia"isUncertain="true"kingdom="Animalia"order="Gadiformes"pageId="65"pageNumber="96"phylum="Chordata"rank="species"species="coheni">
. A. ASIZP 63791, 1 of 3, 333+ mm TL, fresh. B-C.ASIZP 63791, 1 of 3, 290+ mm TK.
</paragraph>
<paragraphid="8B8936ABFF9B111FAB64E6FCFE61FAE5"blockId="65.[123,1175,1251,1296]"box="[123,495,1276,1296]"pageId="65"pageNumber="96">B. lateral view. C. lateral view of left head.</paragraph>
<bibRefCitationid="EFA74B5AFF9B111FAA21E464FD8AF997"author="SHAO, K. - T. & T. IWAMOTO & H. - C. HO & T. - Y. CHEN & C. - Y. CHEN"box="[318,516,1637,1661]"pageId="65"pageNumber="96"refId="ref81544"refString="SHAO, K. - T., T. IWAMOTO, H. - C. HO, T. - Y. CHEN, AND C. - Y. CHEN. 2008. Species composition and distribution pattern of grenadiers (family Bathygadidae, Macrouridae and Macrouroididae) from Taiwan. Pages 17 - 29 in A. Orlov and T. Iwamoto, eds., Grenadiers of the World Oceans: Biology, Stock Assessment, and Fisheries. American Fisheries Society, Symposium 63, Bethesda, Maryland, USA. 484 pp."type="book"year="2008">Shao et al. (2008)</bibRefCitation>
first recorded these specimens as
<taxonomicNameid="4C364D28FF9B111FA860E467FECEF977"authority="Iwamoto and Merrett, 1997"authorityName="Iwamoto and Merrett"authorityYear="1997"family="Macrouridae"genus="Nezumia"kingdom="Animalia"order="Gadiformes"pageId="65"pageNumber="96"phylum="Chordata"rank="species"species="coheni">
<bibRefCitationid="EFA74B5AFF9B111FABB6E487FECEF977"author="MERRETT, N. R. & R. L. HAEDRICH"box="[169,320,1669,1693]"pageId="65"pageNumber="96"refId="ref80600"refString="MERRETT, N. R., AND R. L. HAEDRICH. 1997. Deep-sea Demersal Fish and Fisheries. Chapman and Hall, London, England, UK. 282 pp."type="book"year="1997">Merrett, 1997</bibRefCitation>
</taxonomicName>
, but on closer examination, certain character disparities suggested that the
<taxonomicNameid="4C364D28FF98111CAAF7E2DDFDC1FF19"authorityName="Iwamoto and Merrett"authorityYear="1997"box="[488,591,219,243]"family="Macrouridae"genus="Nezumia"kingdom="Animalia"order="Gadiformes"pageId="66"pageNumber="97"phylum="Chordata"rank="species"species="coheni">N. coheni</taxonomicName>
.
</emphasis>
Certain proportional measurements differed slightly: suborbital depth 17–19% HL cf. 15–16% in
<taxonomicNameid="4C364D28FF98111CA97BE2FDFD42FEF9"authorityName="Iwamoto and Merrett"authorityYear="1997"box="[612,716,251,275]"family="Macrouridae"genus="Nezumia"kingdom="Animalia"order="Gadiformes"pageId="66"pageNumber="97"phylum="Chordata"rank="species"species="coheni">
; preanal length 165–186% cf 143–166%; and barbel length into orbit diameter 1.3–1.6 times cf. 1.6–2.0 times. The spinules on body scales also have rather broadly convex tips in the
<taxonomicNameid="4C364D28FF98111CAA29E35DFE13FE99"authorityName="Iwamoto and Merrett"authorityYear="1997"box="[310,413,347,371]"family="Macrouridae"genus="Nezumia"kingdom="Animalia"order="Gadiformes"pageId="66"pageNumber="97"phylum="Chordata"rank="species"species="coheni">N. coheni</taxonomicName>
specimens are in excellent condition, they were all collected together and are all of relatively the same size and likely do not show the range of variation in the species. The similarities in most features suggest a close relationship between
<taxonomicNameid="4C364D28FF98111CAB64E3BDFF6CFE39"authorityName="Iwamoto and Merrett"authorityYear="1997"box="[123,226,443,467]"family="Macrouridae"genus="Nezumia"kingdom="Animalia"order="Gadiformes"pageId="66"pageNumber="97"phylum="Chordata"rank="species"species="coheni">
specimens, if indeed they are different. We must await collection and study of more specimens of different sizes to confirm or reject the notion of their being different species.
