Systematics of Callogobius (Teleostei:Gobiidae)

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dc.contributor.authorDelventhal, Naomi
dc.contributor.examiningcommitteeHare, James (Biological Sciences) Ford, Bruce (Biological Sciences) Sharanowski, Barbara (Entomology) Parenti, Lynne (Curator of Fishes, Smithsonian Institution)en_US
dc.contributor.supervisorMooi, Randall (Biological Sciences)en_US
dc.date.accessioned2018-01-11T20:57:28Z
dc.date.available2018-01-11T20:57:28Z
dc.date.issued2016-10-31en_US
dc.date.issued2013-03-19en_US
dc.date.issued2014-02-13en_US
dc.date.issued2014-03en_US
dc.degree.disciplineBiological Sciencesen_US
dc.degree.levelDoctor of Philosophy (Ph.D.)en_US
dc.description.abstractCallogobius is a large genus of gobies characterized by fleshy ridges of papillae on the head in both horizontal and vertical rows. The taxonomy and phylogenetics of the genus are difficult and poorly understood. The purpose of my research is to better categorize the diversity within Callogobius by identifying and describing morphological characters and using them to aid species identification and discovery of monophyletic sub-groups within the genus. In this thesis, I construct separate phylogenetic hypothesizes for the intrarelationships of Callogobius using morphological and molecular data, respectively. Parsimony analysis using morphological characters (external anatomy and osteology) supports the presence of three monophyletic groups within Callogobius, the hasseltii, sclateri and maculipinnis groups. A fourth group, the tutuilae group, contains several species, at least some of which share some characters with members of the sclateri group. A molecular phylogenetic approach using four genes (zic1, a partial fragment containing 12S, tRNAVal and 16S, rag1 and sreb2) and analyzed using maximum parsimony, maximum likelihood and Bayesian inference supports the monophyly of Callogobius, the hasseltii, sclateri and maculipinnis groups; the tutuilae group is resolved as paraphyletic with respect to the sclateri group. Reductive traits, such as small size and loss of head pores appear to have evolved multiple times in independently. In addition to phylogenetic analyses, I address some of the taxonomic issues within Callogobius through the descriptions of two new species, C. winterbottomi and C. pilosimentum, a redescription of C.allogobius clarki, removal of Gobiopsis liolepis from Callogobius, and a regional review of the Red Sea species (including a key). My taxonomic and phylogenetic study demonstrates that it is possible to find concordance between multiple methods even in taxa characterized by diversity and perceived reductive characters.en_US
dc.description.noteFebruary 2018en_US
dc.identifier.citationDelventhal, N. R., R. D. Mooi, S. V. Bogorodsky & A. O. Mal. 2016. A review of the Callogobius (Teleostei: Gobiidae) from the Red Sea with the description of a new species. Zootaxa 4179 (2): 225-243.en_US
dc.identifier.citationDelventhal, N.R. & R.D. Mooi. 2014. Redescription of Callogobius clarki (Goren) (Teleostei: Gobiidae), not a synonym of C. bifasciatus (Smith). Copeia. 2014(1): 143–148 .en_US
dc.identifier.citationDelventhal, N. R. & R. D. Mooi. 2014. Callogobius liolepis Bleeker, a senior synonym of Gobiopsis aporia Lachner and McKinney (Teleostei: Gobiidae: Gobiopsis). Zootaxa. 3764(5): 571-580.en_US
dc.identifier.citationDelventhal, N.R., & R.D. Mooi. 2013. Callogobius winterbottomi, a new species of goby (Teleostei: Gobiidae) from the Western Indian Ocean. Zootaxa. 3630(1):155–164.en_US
dc.identifier.urihttp://hdl.handle.net/1993/32803
dc.language.isoengen_US
dc.publisherZootaxaen_US
dc.publisherZootaxaen_US
dc.publisherZootaxaen_US
dc.publisherCopeiaen_US
dc.rightsopen accessen_US
dc.subjectBiologyen_US
dc.subjectSytematicsen_US
dc.subjectMorphologyen_US
dc.subjectTaxonomyen_US
dc.subjectNew speciesen_US
dc.subjectGobiidaeen_US
dc.titleSystematics of Callogobius (Teleostei:Gobiidae)en_US
dc.typedoctoral thesisen_US
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