Apistogramma juruensis

[Mike Wise]

Looks like A. sp. Schwarzkinn/Black-chin.

 

[Ruki]

Looks like A. sp. Schwarzkinn/Black-chin.

With unique design of ventral fins(no yellow and black markings)?

 

[Mike Wise]

I must admit that this isn't the ideal photo for identification purposes, since the abdominal stripes are not very visible. Still, the broad 'T' patch on the throat, the irregular rows of spots on the caudal fin, and red lips all indicate that this is A. sp. Schwarzkinn/Black-throat. Not all Schwarzkinn males show the yellow/black stripes in the ventral fins. This feature is more commonly seen on females. See the DATZ book, A198 for a male Schwarzkinn that looks very much like this male.

 

[Ruki]

I've asked about those stripes because every BC males that I had(or have till now) have those stripes. But if they are 2 forms(blue and yellow, as in DATZ) maybe those stripes are main feature to distinguish that 2 forms?
Blue form looks like head and dorsal fin of Black Chin and the rest looks like as A. cacatuoides blue form.

My WF male of BC:

 

[Mike Wise]

Pattern on the ventral fins of A. sp. Schwarzkinn is variable. Therefore it is not a diagnostic characteristic of the species. It may be diagnostic for different populations/color morphs, but I don't have enough collection data to know for certain.

 

[Ruki]

OK. Good to know. Thanks.

 

[Amazoniensis]

here some photos of the same male: