{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/87841"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/87841","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Taxonomy of the Neotropical Thorny Catfishes (Siluriformes: Doradidae) and Revision of Genus Leptodoras","abstract":"Cladistic analysis of relationships among Leptodoras and related taxa (Anduzedoras, Doras, Hassar, Hemidoras) using morphological data recovers Leptodoras praelongus (Myers & Weitzman) as the most ancestral species. The most derived clade is composed of two nominal species, Leptodoras juruensis Boulenger and Leptodoras myersi Bohlke, and one undescribed species, Leptodoras sp. 3. A sister-group relationship between Leptodoras and the monotypic Anduzedoras oxyrhynchus (Valenciennes) is supported by four unambiguous synapomorphies: predorsal distance ≤41% of standard length, first vertebra conspicuously expanded, maxillary edentulous, and average sum of midlateral scutes ≥70. This relationship and those among species of Leptodoras suggest a gradual evolution from a midwater or hyperbenthic form to a truly benthic, relatively deepwater form.","abstract_html":"Cladistic analysis of relationships among Leptodoras and related taxa (Anduzedoras, Doras, Hassar, Hemidoras) using morphological data recovers Leptodoras praelongus (Myers & Weitzman) as the most ancestral species. The most derived clade is composed of two nominal species, Leptodoras juruensis Boulenger and Leptodoras myersi Bohlke, and one undescribed species, Leptodoras sp. 3. A sister-group relationship between Leptodoras and the monotypic Anduzedoras oxyrhynchus (Valenciennes) is supported by four unambiguous synapomorphies: predorsal distance ≤41% of standard length, first vertebra conspicuously expanded, maxillary edentulous, and average sum of midlateral scutes ≥70. This relationship and those among species of Leptodoras suggest a gradual evolution from a midwater or hyperbenthic form to a truly benthic, relatively deepwater form.","abstract_has_math":false,"creators":["Sabaj, Mark Henry"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Animal Biology","degree_department":null,"school":null,"contributors":["Page, Lawrence M."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2015,"date_issued":"2015-09-28T16:59:58Z","date_published":"2015-09-28T16:59:58Z","updated_at":"2026-07-22T22:26:31Z","subjects":["Biology, Genetics"],"languages":["eng"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["(MiAaPQ)AAI3070424"],"render_values":[{"text":"(MiAaPQ)AAI3070424","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/87841","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Page, Lawrence M."]},{"key":"dc:creator","label":"Author","values":["Sabaj, Mark Henry"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2015-09-28T16:59:58Z","10000-01-01","2002"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Animal Biology"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Biology, Genetics"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/87841","(MiAaPQ)AAI3070424"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Cladistic analysis of relationships among Leptodoras and related taxa (Anduzedoras, Doras, Hassar, Hemidoras) using morphological data recovers Leptodoras praelongus (Myers & Weitzman) as the most ancestral species. The most derived clade is composed of two nominal species, Leptodoras juruensis Boulenger and Leptodoras myersi Bohlke, and one undescribed species, Leptodoras sp. 3. A sister-group relationship between Leptodoras and the monotypic Anduzedoras oxyrhynchus (Valenciennes) is supported by four unambiguous synapomorphies: predorsal distance ≤41% of standard length, first vertebra conspicuously expanded, maxillary edentulous, and average sum of midlateral scutes ≥70. This relationship and those among species of Leptodoras suggest a gradual evolution from a midwater or hyperbenthic form to a truly benthic, relatively deepwater form.","Made available in DSpace on 2015-09-28T16:59:58Z (GMT). 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The most derived clade is composed of two nominal species, Leptodoras juruensis Boulenger and Leptodoras myersi Bohlke, and one undescribed species, Leptodoras sp. 3. A sister-group relationship between Leptodoras and the monotypic Anduzedoras oxyrhynchus (Valenciennes) is supported by four unambiguous synapomorphies: predorsal distance ≤41% of standard length, first vertebra conspicuously expanded, maxillary edentulous, and average sum of midlateral scutes ≥70. This relationship and those among species of Leptodoras suggest a gradual evolution from a midwater or hyperbenthic form to a truly benthic, relatively deepwater form.","Made available in DSpace on 2015-09-28T16:59:58Z (GMT). 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