Trigonostigma aff. heteromorpha ( Duncker 1904 )

Ng, Casey Keat Chuan, Lim, Teow Yeong, Ahmad, Amirrudin & Khaironizam, Md Zain, 2019, Provisional checklist of freshwater fish diversity and distribution in Perak, Malaysia, and some latest taxonomic concerns, Zootaxa 4567 (3), pp. 515-545 : 527

Trigonostigma aff. heteromorpha ( Duncker 1904)

Trigonostigma aff. heteromorpha : Authors' data (Pondok Tanjung)

Remarks. Compared with figure provided by Duncker (1904) which exhibits an apex at the middle point of the dorsum that is slightly backward, our specimens from Pondok Tanjung display apex that is somewhat directed forward. The triangular markings in males and females are also somewhat different ( Fig. 5 ). We therefore cite specimens encountered in Pondok Tanjung as T. aff. heteromorpha pending further investigation.

Figures

FIGURE 5. Trigonostigma aff. heteromorpha; female (top left); male (top right); comparison between T. aff. heteromorpha (female) from Pondok Tanjung (top) and T. heteromorpha (female) from northern Terengganu (bottom left); T. heteromorpha figured in Duncker (1904) (bottom right).