[Christian Hinz]

Pulau Bangka is the largest island in the Riau Archipel with a north-south expansion of 200km and we only know from Parosphromenus bintan and Parosphromenus deissneri from the south of island from the area of Toboali.
Meanwhile we know several about other bintan like types from the Riau Archipel for instance Parosphromenus spec. “Dabo” or Parosphromenus spec. “Pulau Belitung” and therefore it is in all probability that there are more bintan like types from those area as well as from Pulau Bangka.
In addition it would be astonishing that the species Parosphromenus bintan with a very large distribution area (meantime we know about bintan like types from Sumatra, Riau Archipel, south and west Borneo and Westmalaysia) don’t develop local forms.

Christian Hinz (Berlin, Germany)

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