Homaloptera orthogoniata Vaillant, 1902

Ikhwanuddin, Mat Esa Mohd, Amal, Mohammad Noor Azmai, Aziz, Azizul, Sepet, Johari, Talib, Abdullah, Ismail, Muhammad Faiz & Hashim, Nor Rasidah, 2017, Inventory of fishes in the upper Pelus River (Perak river basin, Perak, Malaysia), Check List 13 (4), pp. 315-325 : 317

Homaloptera orthogoniata Vaillant, 1902

Homaloptera orthogoniata Vaillant 1902: 122 .

Material examined. Table 1; Figure 3a.

Homaloptera orthogoniata , H. confuzona and H. parclitella are similar, but H. orthogoniata can be dif- ferentiated from those species by a few characters. The most useful of these are the dark markings extending from the snout over the dorsal surface, forming a series of saddle-shaped blotches. Homaloptera orthogoniata has 3 saddles, while H. parclitella has only 2, and H. confuzona has up to 4 irregularly shaped markings, which are normally restricted to the upper half of the body. This species inhabit forested streams with black waters (Kot- telat et al. 1993), usually with some current and wood debris ( Kottelat and Widjanarti 2005).