On the Rasbora (s. str.) species group

The remaining species within Rasbora s. str. for which their phylogenetic were not analyses by Liao et al. (2010 [see Liao, T. Y., Kullander, S. O. & Fang, F. (2010). Phylogenetic analysis of the genus Rasbora (Teleostei: Cyprinidae). Zoologica Scripta 39, 155–176] for details) phylogenetic positions may change when such studies are conducted. At least 17 species of rasborins fishes present in Peninsular Malaysia.

The proposed grouping of the remaining species that not examined in the study, are as follows:

Rasbora semilineata species group: R. semilineata, R. borapetensis, R. rubrodorsalis.

Rasbora trifasciata species group: R. trifasciata, R. amplistriga, R. bankanensis, R. dies, R. ennealepis, R. hubbsi, R. johannae, R. meinkeni, R. paucisqualis, R. rutteni, R. sarawankensis, R. taytayensis, R. tobana, R. tuberculata.

Rasbora daniconius species group: R. daniconius, R. caverii, R. kobonensis, R. labiosa, R. ornata, R. wilpita.

Rasbora einthovenii species group: R. einthovenii, R. cephalotaenia, R. elegans, R. jacobsoni, R. kalochroma, R. kottelati, R. nematotaenia, R. patrickyapi, R. tubbi.

Rasbora argyrotaenia species group: R. argyrotaenia, R. aprotaenia, R. aurotaenia, R. baliensis, R. borneensis, R. bunguranensis, R. dusonensis, R. evereti, R. hobelmani, R. hossi, R. lateristriata, R. laticlavia, R. leptosoma, R. philippina, R. septentrionalis, R. spilotaenia, R. steineri, R. tawarensis, R. tornieri, R. volzii.

Rasbora sumatrana species group: *R. sumatrana, R. atridorsalis, R. calliura, R. caudimaculata, R. dorsinotata, R. notura, R. paviana, R. rasbora, R. subtilis, R. trilineata, *R. vulgaris.

Not classified: R. beauforti, R. chrysotaenia, R. gerlachi, R. kalbarensis, R. reticulata, R. vulcanus, R. zanzibarensis.

Note. ‘bold’ indicates species presence in Peninsular Malaysia. ‘*’ denotes that the presence of these species in Peninsular Malaysia are still in dispute.

Interestingly, R. caudimaculata (greater scissortail) and R. trilineata (scissortail) with a distinct color pattern on caudal fin, slender caudal peduncle are grouped together under R. sumatrana species group! I am sure someone will place them in its own group or perhaps in a new genus, someday!! Same goes to some species within R. argyrotaenia species group, among other R. bunguranensis (endemic to Natuna Is., Indonesia) which superficially similar to R. notura (endemic to Peninsular Malaysia). It's soooooo interesting!!!