@article{fdi:010070034, title = {{A} new species of {T}ometes {V}alenciennes 1850 ({C}haraciformes : {S}errasalmidae) from {T}ocantins-{A}raguaia {R}iver {B}asin based on integrative analysis of molecular and morphological data}, author = {{A}ndrade, {M}. {C}. and {M}achado, {V}. {N}. and {J}{\'e}gu, {M}ichel and {F}arias, {I}. {P}. and {G}iarrizzo, {T}.}, editor = {}, language = {{ENG}}, abstract = {{A} new large serrasalmid species of {T}ometes is described from the {T}ocantins-{A}raguaia {R}iver {B}asin. {T}ometes siderocarajensis sp. nov. is currently found in the rapids of the {I}ta-caiunas {R}iver {B}asin, and formerly inhabited the lower {T}ocantins {R}iver. {T}he new species can be distinguished from all congeners, except from {T}. ancylorhynchus, by the presence of lateral space between 1st and 2nd premaxillary teeth, and by the absence of lateral cusps in these two teeth. {H}owever, {T}. siderocarajensis sp. nov. can be differentiated from syntopic congener {T}. ancylorhynchus by an entirely black with mottled red body in live specimens, densely pigmented pelvic fins with a high concentration of dark chromatophores, and the presence of 39 to 41 rows of circumpeduncular scales (vs. silvery body coloration with slightly reddish overtones on middle flank during breeding period in live specimens, hyaline to slightly pale coloration on distalmost region of pelvic fins, and 30 to 36 rows of circumpeduncular scales). {A}dditionally, molecular sequence shows that {T}. siderocarajensis sp. nov. is reciprocally monophyletic, and diagnosable from all congeners by having two autapomorphic molecular characters in the mitochondrial gene {COI}. {T}he phylogenetic reconstruction still show that {T}. siderocarajensis sp. nov. is closely related to {T}. trilobatus. {T}his is the first molecular study using an integrative taxonomic approach based on morphological and molecular sequence data for all described species of {T}ometes. {T}hese findings increase the number of formally described species of {T}ometes to seven. {A} key to the {T}ometes species is provided.}, keywords = {{BRESIL} ; {AMAZONIE} ; {TOCANTINS} {COURS} {D}'{EAU} ; {ARAGUAIA} {COURS} {D}'{EAU}}, booktitle = {}, journal = {{P}los {O}ne}, volume = {12}, numero = {4}, pages = {e0170053 [21 p.]}, ISSN = {1932-6203}, year = {2017}, DOI = {10.1371/journal.pone.0170053}, URL = {https://www.documentation.ird.fr/hor/fdi:010070034}, }