Homaloptera tateregani

Hui, Tan Heok, 2009, A new species of hill stream loach (Teleostei: Balitoridae) from Central Kalimantan, with redescriptions of Homaloptera tateregani Popta and Homaloptera stephensoni Hora, Zootaxa 2171, pp. 48-64 : 56

Redescription of Homaloptera tateregani

This taxon was first described by Popta (1905) based on a single specimen obtained from the upper Mahakam basin in East Kalimantan. It had not been subsequently reported upon, except by Silas (1952), who included it in a new genus, Pseudohomaloptera , based primarily on the presence of postrostral grooves, which should correctly be termed postoral grooves. However, upon comparison with the present series and other congeners, I consider this character unreliable: it could be a preservation artifact. In the fresh series of H. batek described above too, this postoral groove is present: it is thus not unique to H. tateregani . Further, it is premature to split the genus Homaloptera without a well-supported phylogenetic hypothesis.