@article{fdi:010073146, title = {{A} new {M}yleus species ({C}haraciformes : {S}errasalmidae) from the {R}io {T}apajos basin, {B}razil}, author = {{A}ndrade, {M}. {C}. and {J}{\'e}gu, {M}ichel and {B}uckup, {P}. {A}. and {N}etto-{F}erreira, {A}. {L}.}, editor = {}, language = {{ENG}}, abstract = {{M}yleus pachyodus, a new serrasalmid species, is described from the {R}io {T}eles {P}ires and {R}io {J}amanxim, both tributaries of the {R}io {T}apajos in {M}ato {G}rosso and {P}ara states, {B}razil. {T}he new species differs from all congeners by having a remarkable ontogenetic thickening of the teeth shifting from slender incisiform in juveniles to thick bulky teeth at standard length100mm, whereas congeners present slender, antero-posteriorly flat teeth throughout all life stages. {T}he new species further differs from congeners by having 18-20 branched dorsal-fin rays, by the lack of a diastema between contralateral outer series of premaxillary teeth and by the presence of 16-25 prepelvic spines, with the anteriormost spine never reaching the vertical through the pectoral-fin origin.}, keywords = {{N}eotropical ; {O}stariophysi ; rheophilous fish ; taxonomy ; threatened fish ; {BRESIL} ; {MATO} {GROSSO} ; {PARA} ; {RIO} {TAPAJOS} {BASSIN} ; {RIO} {TELES} {PIRES} ; {RIO} {JAMANXIM}}, booktitle = {}, journal = {{J}ournal of {F}ish {B}iology}, volume = {92}, numero = {6}, pages = {1902--1914}, ISSN = {0022-1112}, year = {2018}, DOI = {10.1111/jfb.13628}, URL = {https://www.documentation.ird.fr/hor/fdi:010073146}, }