Tetragonopterus denticulatus Silva, Melo, Oliveira & Benine, 2013

Silva, Gabriel S. C., Melo, Bruno F., Oliveira, Claudio & Benine, Ricardo C., 2016, Revision of the South American genus Tetragonopterus Cuvier, 1816 (Teleostei: Characidae) with description of four new species, Zootaxa 4200 (1), pp. 1-46: 31

publication ID

http://doi.org/10.11646/zootaxa.4200.1.1

publication LSID

lsid:zoobank.org:pub:911ECACD-8903-405E-AAA4-8300901D69C7

persistent identifier

http://treatment.plazi.org/id/03F47776-FFD7-594F-FF5C-BC0C37E74701

treatment provided by

Plazi

scientific name

Tetragonopterus denticulatus Silva, Melo, Oliveira & Benine, 2013
status

 

Tetragonopterus denticulatus Silva, Melo, Oliveira & Benine, 2013 

Fig. 11View FIGURE 11

Tetragonopterus denticulatus Silva, Melo, Oliveira & Benine, 2013: 1613  –1631 (original description; type locality: “Brazil, Goiás, Aragarças, Rio Araguaia, Amazon basin.

Diagnosis. Tetragonopterus denticulatus  is distinguished from all other congeners, except T. anostomus  , T. juruena  and T. kuluene  , by the presence of 5–6 principal teeth on dentary (vs. 4 teeth) and by having thinner and sharper teeth (vs. larger and more robust teeth). It differs from T. anostomus  by a terminal mouth (vs. subsuperior mouth); it differs from T. anostomus  and T. kuluene  by having two conspicuous humeral marks (vs. only one conspicuous humeral mark). Tetragonopterus denticulatus  differs from T. anostomus  and T. araguaiensis  by having 13–14 rakers on the lower limb and 8–9 rakers on the upper limb of the first gill arch (vs. 17–20 and 10–12). Tetragonopterus denticulatus  differs from T. juruena  and T. kuluene  by having 7 scale rows between lateral line and dorsal-fin origin (vs. 6). It further differs from T. argenteus  by the presence of eight predorsal scales (vs. 11–17). Tetragonopterus denticulatus  differs from T. carvalhoi  by the presence of a rounded dark mark on caudal peduncle (vs. a lozenge-shaped mark on caudal peduncle). It differs from T. rarus  and T. georgiae  by having 3.5 scale rows between lateral line and pelvic-fin origin (vs. 4.5–5.5); it differs from T. rarus  by the absence of dark longitudinal stripes on the trunk (vs. presence of stripes). Finally, T. denticulatus  differs from T. ommatus  by the presence of 3–4 maxillary teeth (vs. 7–8) and by having a mark centered on caudal peduncle (vs. mark limited to the posterior portion of caudal peduncle).

Description. A detailed description of Tetragonopterus denticulatus  was recently provided by Silva et al. (2013).

Distribution. Tetragonopterus denticulatus  was previously only known from the middle Araguaia basin in central Brazil. During the course of this study, specimens of T. denticulatus  were also identified from the Rio Tocantins, extending its distribution range for this river system ( Fig. 2 b).

Material examined. Brazil. Types: MZUSPAbout MZUSP 111002View Materials, holotype, 54.8 mm SL, Goiás, Aragarças , Rio Araguaia basin, 15°53’31.5”S 52°15’02”W, C. Oliveira, J. Santana, P. Vênere, & M. TaylorGoogleMaps  , 23 Jan 2008. LBP 1585, 6 paratypes (1 c&s), 48.5–61.7 mm SL, Mato Grosso, Barra do Garças, Rio Araguaia basin, 15°54’18”S 52°19’24”W, C. Oliveira et al. 13 Dec 2002GoogleMaps  . LBP 1629, 1 paratype, 58.0 mm SL, Goiás, Aragarças, Rio Araguaia basin, 15°53’35.2”S 52°15’00”W, C. Oliveira et al. 10 Dec 2002GoogleMaps  . LBP 5751, 5 paratypes, 50.6–59.9 mm SL, same data as holotypeGoogleMaps  . MZUSPAbout MZUSP 88119, 2 paratypes, 47.4–48.7 mm SL, Goiás, Aragarças, Rio Araguaia basin, 15°53’35.0”S 52°15’08.2”W, V. Garutti & P. Vênere, 0 1 Aug 2005GoogleMaps  . Non types: MZUSPAbout MZUSP ex 54091, 2, 65.6–67.1 mm SL, Goiás, Minaçu, Rio Tocantins, Serra da Mesa. NUP 8202, 5, 34.4–53.3 mm SL, Tocantins, Ananás , Rio Araguaia , 6°06’39.2”S 48°17’16”WGoogleMaps  . UNTAbout UNT 3512, 2, 50.9–67.9 mm SL, Tocantins, Pedro Afonso , Rio Tocantins, 8°58’28”S 48°10’46”WGoogleMaps  . UNT 3513, 67.9 mm SL; UNT 3519, 1, 59.2 mm SL; UNT 3528, 1, 56.9 mm SL; UNT 3532, 1, 65 mm SL; UNTAbout UNT 3533, 1, 59.8 mm SL; Tocantins, Lajeado , Rio Tocantins, 9°45’2”S 48°21’56”WGoogleMaps  . UNTAbout UNT 3529, 2, 50.4–50.9 mm SL, Tocantins, Ipueiras , Rio Tocantins basin, 11°18’55”S 48°27’28”WGoogleMaps  . UNTAbout UNT 3530, 1, 50.2 mm SL, Tocantins, Porto Nacional , Rio Tocantins, 10°43’15”S 48°25’14”W.GoogleMaps 

MZUSP

Museu de Zoologia da Universidade de Sao Paulo

UNT

Universidad nacional de Tucumn

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Anthribidae

Genus

Tetragonopterus

Loc

Tetragonopterus denticulatus Silva, Melo, Oliveira & Benine, 2013

Silva, Gabriel S. C., Melo, Bruno F., Oliveira, Claudio & Benine, Ricardo C. 2016

2016
Loc

Tetragonopterus denticulatus

Silva 2013: 1613