Crossocheilus oblongus and Epalzeorhynchos siamensis

Crossocheilus siamensis  (Smith, 1931)

Images of the holotype by Sandra Raredon
Copyright Division of Fishes, Department of Vertebrate Zoology, Museum of Natural History, Smithsonian Institution,
Washington, D.C.

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Crossocheilus oblongus  Kuhl & van Hasselt in van Hasselt 1823

Its alleged holotype or syntype according to Roberts is
RMNH 2640 Crossocheilus oblongus.






Images of the holotype or syntype by Ronald de Ruiter









Images of the holotype or syntype by Koos van Egmond
Copyright Department of Ichthyology, National Museum of Natural History,
Leiden

Its holotype designated by Alfred according to Tan & Kottelat is
RMNH D1755 Crossocheilus oblongus.














Images of the holotype by Ronald de Ruiter
Copyright Department of Ichthyology, National Museum of Natural History,
Leiden

Syntype of Crossocheilus oblongus Kuhl & Van Hasselt
for comparison







RMNH D1757 stuffed specimen exists too. RMNH 380 skeleton.

Images by Ronald de Ruiter
Copyright Department of Ichthyology, National Museum of Natural History,
Leiden

It is by far not certain that the alcohol-preserved RMNH 2640 and the stuffed RMNH D1755 are conspecific. The stuffed specimens are likely to be painted, at least the dark lateral band. According to Roberts, other species are painted too. Original handwritten description by Kuhl and van Hasselt is retyped

rectangular lower lip, darker band between eye and snout tip, three large oval pores between eye and mouth	trilobed lower lip, snout equally dark between eye and snout tip as on its dorsum, three large oval pores between eye and mouth not observable

Crossocheilus langei  Bleeker 1860

Crossocheilus cobitis (Bleeker, 1853)

Crossocheilus pseudobagroides Duncker, 1904