Photopigment spectral absorbance of Lake Malaŵi cichlids

Hemitaeniochromis brachyrhynchus, a new species of cichlid fish from Lake Malaŵi, with comments on some other supposed members

Hemitaeniochromis brachyrhynchus, an anatomically distinctive and apparently rare new cichlid, is described and illustrated from specimens collected at two widely separated localities within Lake Malaŵi. It is easily distinguished from H. urotaenia, type species of the genus, by its narrow lacrimal bone which is only one-third of the orbit length, a character thought to be unique not only in He...

Schistosomiasis in Lake Malaŵi and the Potential Use of Indigenous Fish for Biological Control

Bilharzia in Lake Malaŵi - What are the facts?

Morphological changes in the retina of Aequidens pulcher (Cichlidae) after rearing in monochromatic light

We investigate the processing of chromatic information in the outer retina of a cichlid fish, Aequidens pulcher. The colour opponent response characteristics of some classes of cone-specific horizontal cells in the fish retina are the result of feedforward-feedback loops with cone photoreceptors. To interfere with the reciprocal transmissions of signals, animals were reared in monochromatic lig...

Mix and Match Color Vision: Tuning Spectral Sensitivity by Differential Opsin Gene Expression in Lake Malawi Cichlids

Cichlid fish of the East African Rift Lakes are renowned for their diversity and offer a unique opportunity to study adaptive changes in the visual system in rapidly evolving species flocks. Since color plays a significant role in mate choice, differences in visual sensitivities could greatly influence and even drive speciation of cichlids. Lake Malawi cichlids inhabiting rock and sand habitats...