Description of a new species of Schizodon (Characiformes: Anostomidae) from the upper rio Tapajós basin, Brazil Author Britski, Heraldo A. Seção de Peixes, Museu de Zoologia da Universidade de São Paulo, Caixa Postal 42494, Av. Nazaré, 481, Ipiranga, 04218 - 970 São Paulo, SP, Brazil Author Garavello, Júlio C. Departamento de Ecologia e Biologia Evolutiva, Universidade Federal de São Carlos, Rodovia Washington Luiz, km 235, Caixa Postal 676, 13565 - 905 São Carlos, SP, Brazil Author Ramirez, Jorge L. Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos, Calle Germán Amézaga Nº 375, Ciudad Universitaria, Lima, Peru text Zootaxa 2023 2023-08-14 5330 1 135 140 http://dx.doi.org/10.11646/zootaxa.5330.1.8 journal article 54370 10.11646/zootaxa.5330.1.8 2b1a1335-4c7e-4a4a-8a9f-c45a6b0b548a 1175-5326 8249234 CA773128-62A7-4C56-B1AE-5DB9C94F60F2

TABLE 1. Morphometric data for Schizodon paucisquamis, sp. n., expressed as percents of standard length (2–8) and head length (9–11); SD—standard deviation.

	Holotype		Paratypes
	MZUSP	Range		Mean	SD
Characters	127765	Low	High
1) Standard length (mm)	329.0	150.9	350.0
2) Head length	23.3	21.7	24.5	23.0	0.0080
3) Depth at dorsal-fin origin	24.8	24.13	30.8	27.3	0.0189
4) Caudal peduncle depth	10.0	9.7	10.9	10.3	0.0041
5) Snout to dorsal-fin origin	43.5	40.6	44.4	42.8	0.0116
6) Snout to ventral-fin origin	46.3	43.3	49.0	46.6	0.0150
7) Pectoral-fin length	17.8	16.1	18.9	17.1	0.0084
8) Pelvic-fin length	19.3	17.7	20.3	18.7	0.0074
9) Eye diameter	22.9	19.67	27.0	22.6	0.0205
10) Snout length	37.2	36.1	41.5	37.6	0.0145
11) Interorbital width	50.0	48.2	53.0	50.1	0.0161