Are these Espei Rasboras?

[Wills]

Saw these today at an LFS and they were labeled as Espei but I know they can be hard to ID and I don't fully understand the difference between all the 'Harlequin' types?

Let me know what you think

Wills

 

[Ichthys]

They’re hengeli. Espei is much redder and doesn’t have the gold part in front of the black.

 

[Wills]

They’re hengeli. Espei is much redder and doesn’t have the gold part in front of the black.

Perfect thank you

 

[connorlindeman]

The black coloration shape looks more like the espei to me...

 

[Ichthys]

The black shape varies a lot in both species.

 

[Rocky998]

Not espei, but a species very similar. Common name Gloelwlight Rasbora, scientific name Trigonostigma hengeli

 

[Byron]

I concur with those naming this fish Trigonostigma hengeli. Here is a photo of the three most common of the closely-related species. The fourth is in the hobby but quite rare, T. somphongsi.

 

[Ichthys]

And the fifth, T. truncata, is even less common, and probably not in the hobby yet.

 

[Sgooosh]

I have some heteromorpha and maybe one impostor, but I can say that they get far more red than the photos online, I think because of the environment around them and how old they are

 

[Byron]

And the fifth, T. truncata, is even less common, and probably not in the hobby yet.

Yes, here is a link to the paper which has photos for those interested. This species is remarkably similar to T. heteromorpha.

https://lkcnhm.nus.edu.sg/wp-content/uploads/sites/10/app/uploads/2020/01/RBZ-2020-0058.pdf

 

[DoubleDutch]

They look like T.espei to me hahahah

 

[Slaphppy7]

Not espei, but a species very similar. Common name Gloelwlight Rasbora, scientific name Trigonostigma hengeli

Glowlight rasbora =Trigonopoma pauciperforatum

Trigonopoma pauciperforatum – Glowlight Rasbora — Seriously Fish

www.seriouslyfish.com

 

[Rocky998]

Glowlight rasbora =Trigonopoma pauciperforatum

Trigonopoma pauciperforatum – Glowlight Rasbora — Seriously Fish

www.seriouslyfish.com

See, this is where common names get confusing. Yes, thats the name for that fish as well... But glowlight rasbora also can refer to Trigonostigma hengeli

 

[Essjay]

And T. hengeli are often referred to as copper rasboras, but then so are T. espei, which are also called lambchop rasboras.

Common names can be used for several different species, and different common names in different countries.