questioning Hillstream identification.... again...

[Magnum Man]

the latest Saddlebacks I ordered were supposed to be these....

Saddle Back Loach (Homaloptera cf. parclitella)

A resident of fast-moving, rocky streams in Southeast Asia, Saddle Back Loaches use their modified pectoral fins to attach themselves to the rocky substrate and move among the rocks in search of food. In the wild, they are grazers and generalists, feeding on algae, biofilm, and small insects and...

www.aqua-imports.com

but all that I received on this order have white heads, so I suspect these are a different species ...
thoughts???

also, maybe it's the color difference, but the head appears a slightly different shape???

 

[GaryE]

Maybe it's the photo, but that looks like a film on the head. Could it be parasitized?

 

[Magnum Man]

I don't think so, but??? my glass is not clean, as it's a food source...

 

[Magnum Man]

the picture above, from today... this one from a couple days after arriving a few weeks ago