can be distinguished from all other Barilius species previously included within B. ornatus (Tejavej 2010). Given
that there is at least one record of Dr. Harmand’s involvement in the Isthmus of Kra and Chumphon Province in
Southern Thailand in the 1880s relating to the plan for the Kra Canal (Tarling 2001), and that he was known to
board the gunboat that had just carried the French expedition team to survey the Isthmus of Kra to Paknam at
Chumphon back to Bangkok on 17 January 1883 (Loftus 1883), along with the absence of B. ornatus specimen
from Chao Phraya River (the presumed type locality) since its description (Smith 1945), it is possible that the type
specimens of B. ornatus might have been collected from Chumphon Province rather than from Chao Phraya River
in central Thailand. The objective of this study was to determine the identity of B. ornatus given the availability of
fresh specimens from the eastern part of the Isthmus of Kra, and to compare it to three other Barilius species found
nearby areas of Thailand.