Re: juruensis

[Mike & Diane Wise <apistowise@bewellnet.com>]

Gary,

Several new cacatuoides-like species have appeared in the hobby recently.

The fish that in the past was called A. juruensis is actually an undescribed,
closely related, species that has gone under several names lately. Both Koslowski
& Warzel discussed it under A. sp. aff. cacatuoides in the past. I listed it as
A. sp. juruensis in my lists. Recently Staeck proposed the name A. sp. Pucallpa
because this is where it comes from. Koslowski didn't think this was a good name
since Apistogrammoides pucallpaensis has been called the Pucallpa dwarf cichlid
in the past. He proposed the name A. sp. Schwarzkinn (Black-chin) because of the
prominent black chin on both sexes.

The true A. juruensis has recently been imported into Germany from its type
locality in the Rio Juruá. These two species can be differentiated by several
features:
A. juruensis has a more pointed head,  no black chin (or very little), and blue
(barely enlarged) lips. A. sp. Schwarzkinn has a blunter head, black chin, and
enlarged reddish cacatuoides-like lips. Both species, of course, have a lateral
band the ends in front of a caudal spot. All other species are like A.
cacatuoides. They have a lateral band that runs into the tail without a caudal
spot.

Erlässer collected a cacatuoides-like fish from the same areas as A. juruensis
that has a bright orange stomach, dorsal and anal fins. This may be just a color
form of A. cacatuoides.

Numrich collected a new, undescribed, cacatuoides-like fish, too. It is from the
Juruá, too, but looks like no other known species. The males of A. sp. Juruá, as
this form is called, also has orange fin colors, but this color is limited to the
upper and lower edges of the tail fin. They are much more elongate than the other
species of the group and show bright iridescent body scales. The females resemble
A. norberti  in body shape and color. It is a blackwater species.

Your fish doesn't sound like any of these. Maybe it's new. I could possibly tell
more if I saw a photo of it. Hope this helps.

Mike Wise

Frauley/Elson wrote:

> Hi,
> I have a lovely Peruvian fish here, identified as Apisto. juruensis.
> I've seen the juruensis come and go, and at the point they went, they
> were generally cacatuoides. This fish is weird though - like a yellow
> cacatuoides but where many cacatuoides will have a mottled patch on the
> caudal, these beasties have bright yellow ventrals, mottled from top to
> bottom. It's very pretty and striking, especially when males are
> courting the slightly larger than the average wild cacatuoides sized
> females.
> The males have the usual cacatuoides dorsal extensions, however, all
> fins except the ventrals are clear or yellowish.
> Any comments from anyone?
> -Gary
>
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