Tag Archives: sp. III

Hypoptopoma sp. Ucayali

4. April 2022

From Peru we could import very nice Hypoptopoma. Most of the import consisted of H. gulare (see https://www.aquariumglaser.de/fischarchiv/hypoptopoma-gulare/), but there were some specimens with very conspicuous, broad bands in the dorsal fin and contrasting caudal fins. Unfortunately the identification attempt based on the current revision of the genus (Aquino & Schaefer, 2010) did not give a satisfying result and new species have not been described since then. However, the species is already depicted, mostly under the name H. sp. III, with the remark that the origin of this fish is unknown or that the locality is “Brazil”. Since we now know that this species comes from the Rio Ucayali in Peru, we have designated it with the corresponding information.

According to Aquino & Schaefer the species Hypoptopoma bianale, H. steindachneri, H. gulare, H. thoracatum, H. psilogaster and possibly also H. brevirostratum occur in the Rio Ucayali. Our fish does not fit to any of the mentioned species, so that it is probably to be assumed that it is a scientifically still undescribed species. According to the few data in the aquaristic literature Hypoptopoma sp. Ucayali (= H. sp. III) becomes 10-12 cm long (total length, thus including tail fin). Our import fish are currently 5-7 cm long, so they are just half grown.

For our customers: the fish have code 262315 on our stocklist. Please note that we only supply wholesale. Only available in very small quantities!

Text & photos: Frank Schäfer

Ageneiosus lineatus (= sp. III Green Stripe)

12. September 2019

Update: es handelt sich um die Art Ageneiosus lineatus Ribeiro, Rapp Py-Daniel & Walsh 2017

The dolphin catfish were only recently revised and divided into two genera: Ageneiosus and Tympanopleura. Tympanopleura are the smaller species. They are characterized by a circular structure immediately behind the edge of the gill cover, which looks like a tympanum.

Unfortunately, the pretty dolphin catfish imported from Peru from time to time, which is called “Green Stripe”, is not included in the revision and apparently belongs to a scientifically undescribed species. We would classify it also rather in Tympanopleura than in Ageneiosus, especially since it reaches with – as far as known – only 15-20 cm length (usually over 40 cm with Ageneiosus). Among catfish friends this species is also known as sp. III. It has been (and still is) confused with Ageinosus vittatus, but this is a large species with a much rounder head profile and a different pattern.

For our customers: the animals have code 203264 on our stocklist. Please note that we only supply wholesalers.

Text & photos: Frank Schäfer