Roxo Fábio F, Melo Bruno F, Silva Gabriel S C, Oliveira Claudio
Departamento de Morfologia, Instituto de Biociências, Universidade Estadual Paulista, R. Prof. Dr. Antônio C. W. Zanin s/n, Rubião Jr, 18618-689, Botucatu, São Paulo, Brazil..
Zootaxa. 2017 Feb 15;4232(2):zootaxa.4232.2.9. doi: 10.11646/zootaxa.4232.2.9.
A new species of Parotocinclus is described from tributaries of rio São João, an Atlantic coastal river of Rio de Janeiro, southeastern Brazil. The new species is distinguished from its congeners by the possession of a triangular patch of dark pigmentation on the anterior portion of the dorsal-fin base, a fully developed adipose fin, complete exposure of the ventral surface of the pectoral girdle, and a distinctive pigmentation pattern of the caudal fin. The caudal fin has a hyaline background with a large black blotch covering its anterior portion, tapering irregularly through distal portions of the ventral lobe with a hyaline rounded area, and a small patch of dark pigmentation on distal portions of the dorsal lobe.
一种新的帕氏兵鲶属物种是从巴西东南部里约热内卢的一条大西洋沿岸河流——圣若昂河的支流中描述的。该新物种与同属其他物种的区别在于，其背鳍基部前部有一块三角形的深色色素沉着斑、脂鳍完全发育、胸带腹面完全暴露，以及尾鳍独特的色素沉着模式。尾鳍有一个透明的底色，前部覆盖着一个大的黑色斑块，通过腹叶远端部分不规则地逐渐变细，有一个透明的圆形区域，背叶远端部分有一小片深色色素沉着。
