Alestopetersius conspectus is described by José Justin Mbimbi Mayi Munene and Melanie Stiassny in the taxonomic journal 'Zootaxa' this week. It's native to the Kwilu River, a tributary of the Kasai River in the Middle Congo basin and differs from congeners either by the number of circumpeduncular scales, its distinctive caudal fin patterning, or a combination of dentition and lacking a midlateral stripe ... more
Oryzias sakaizumii is one of a number of new species described in the new issue of 'Icthyological Exploration of Freshwaters'. It's native to coastal drainages of northern Japan draining into the Sea of Japan and was previously considered to represent a northern population of the well-known congener O. latipes , better known as the "medaka" in aquarium literature ... more
Dr. Stiassny is the Axelrod Research Curator in the American Natural History Museum’s Department of Ichthyology. Her work is focussed on freshwater biodiversity documentation and systematic ichthyology, in particular that of the Lower Congo region in western central Africa where she has conducted extensive research over the past decade or so, describing many new species in the process.
Here's a chance to see a fascinating mini-lecture about an unusual discovery she and her team made during one of their surveys; a blind, non-pigmented, never-seen-alive cichlid (!) which sparked some extraordinary findings...
An article by Stefan van der Voort discussing the newly described Badis singenensis Geetakumari and Kadu 2011, and its potential conspecificity with a fish known in the aquarium hobby as B. sp. ‘Buxar’, was originally published in a German magazine last month. Regrettably however the content was amended extensively by a third party prior to publication so Stefan requested we reproduce the original text alongside a corrective statement from himself here on SF ... more
As global conservation concern for freshwater fishes has risen in recent years troglomorphic, or cave-dwelling fishes have become increasingly relevant since most of them exhibit highly-restricted natural ranges. While many new discoveries in this subterranean group have been cypriniform species from the Asian region, a new discovery from Brazil represents the first known occurrence of a troglomorphic member of the family Callichthyidae, the same grouping which includes popular aquarium genera such as Corydoras and Brochis ... more
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