| Petrotilapia | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Cichliformes |
| Family: | Cichlidae |
| Tribe: | Haplochromini |
| Genus: | Petrotilapia Trewavas, 1935 |
| Type species | |
| Petrotilapia tridentiger Trewavas, 1935 | |
Petrotilapia is a genus of cichlids endemic to Lake Malawi.
There are currently 10 recognized species in this genus: [1]
Plagiaulacida is a group of extinct multituberculate mammals. Multituberculates were among the most common mammals of the Mesozoic, "the age of the dinosaurs". Plagiaulacids are a paraphyletic grouping, containing all multituberculates that lie outside of the advanced group Cimolodonta. They ranged from the Middle Jurassic Period to the early Late Cretaceous of the northern hemisphere. During the Cenomanian, they were replaced by the more advanced cimolodontans.
Mbuna is the common name for a large group of African cichlids from Lake Malawi, and are members of the haplochromine family. The name mbuna means "rockfish" in the language of the Tonga people of Malawi. As the name implies, most mbuna are cichlids that live among the piles of rocks and along the rocky shores of Lake Malawi, as opposed to the utaka, cichlids that live in the open water or on sandy shores or soft substrates. Some species of mbuna are highly sexually dimorphic, although many are not. Almost all of the cichlid species of Lake Malawi, including mbuna and non mbuna such as the utaka, are believed to have descended from one or a very few species that became isolated in the lake. With rising water levels, new habitats could be colonized and the many isolated rocky outcrops allowed new mbuna species to form. Their striking colors, intriguing behavioral characteristics, and relative hardiness make them very popular despite their unique demands for the home aquarist.
Pseudotropheus is a genus of fishes in the family Cichlidae. These mbuna cichlids are endemic to Lake Malawi in Eastern Africa.
Maylandia or Metriaclima is a genus of haplochromine cichlids endemic to Lake Malawi in East Africa. They belong to the mbuna (rock-dwelling) haplochromines.
Cynotilapia is a genus of haplochromine cichlids. All fishes in these genus form part of the mbuna flock, the rock-dwelling fishes of Lake Malawi, in the rift valley of East Africa. All species are polygamous, maternal, ovophile mouthbrooders and carry their fry in this fashion for about 20–30 days.
Melanochromis is a genus of haplochromine cichlids endemic to Lake Malawi in Eastern Africa. Ecologically, they belong to the rock-dwelling mbuna cichlids of Lake Malawi.
Copadichromis is a genus of haplochromine cichlids endemic to Lake Malawi in Eastern Africa. Copadichromis are part of a group known as utaka and are popular with aquarists, as this genus is relatively peaceful in captivity compared to the mbuna.
Iodotropheus is a small genus of cichlids endemic to Lake Malawi in east Africa. The genus is distinguished from other genera of mbuna by the upper lip which is usually connected medially to the skin of the snout by a frenum; by its small, terminal mouth; by the outer teeth of both jaws, which are unequally bicuspid and loosely spaced, the tooth shafts inclined slightly toward the jaw symphysis; by the anterior teeth of the upper jaw being much longer and more robust than the lateral and posterior teeth. The rusty cichlid or lavender mbuna, Iodotropheus sprengerae is the most commonly encountered member of the genus in the aquarium trade.
Amphilophus is a genus of cichlid fishes from Central America, ranging from southern Mexico to Panama. The genus currently contains 23 species, including several that are well known from the aquarium trade. However, studies led by Oldřich Říčan in 2008 and 2016 suggested that several species within Amphilophus should be moved to the genus Astatheros. Species proposed to be moved to Astatheros in 2008 were A. alfari, A. altifrons, A. bussingi, A. diquis, A. longimanus, A. macracanthus, A. margaritifer, A. rhytisma, A. robertsoni and A. rostratus. Further genetic studies led Říčan to put A. macracanthus in Astatheros, but to put A. alfari, A. altifrons, A. bussingi, A. diquis, A. longimanus, A. rhytisma, A. robertsoni and A. rostratus within the genus Cribroheros. Říčan's study suggests that the Astatheros species are more closely related to the Jack Dempsey and rainbow cichlid than to the remaining Amphilophus species.
Otopharynx is a genus of haplochromine cichlids endemic to Lake Malawi in Eastern Africa.
Diplotaxodon is a small genus of seven formally described, as well as a number of undescribed, deep-water species of cichlid fish endemic to Lake Malawi in east Africa. These fishes represent a remarkable adaptive radiation of offshore and deep-water adapted fish descended from ancestral shallow water forms. They include the dominant zooplankton-feeding fish of the offshore and deep-water regions of the lake, as well as a number of larger species that appear to feed on small pelagic fishes. Adult sizes range from 10 to 30 cm in total length, depending on species.
Pseudotropheus elegans is a species of cichlid endemic to Lake Malawi. This species can reach a length of 13.2 centimetres (5.2 in) SL. It can also be found in the aquarium trade.
Melanochromis loriae is a species of cichlid in the Cichlidae endemic to Lake Malawi. This species can reach a length of 12.5 centimetres (4.9 in) TL.
Petrotilapia chrysos is a species of cichlid endemic to Lake Malawi where it is only known from around the southern islands of Chinyankwazi and Chinyamwezi. It prefers rocky substrates where it can graze on the algae growing on the rocks. This species can reach a length 13.1 centimetres (5.2 in) SL.
Petrotilapia genalutea is a species of cichlid endemic to Lake Malawi where it inhabits areas with rocky substrates from which it grazes algae. This species can reach a length 13.1 centimetres (5.2 in) SL. This species is also found in the aquarium trade.
Petrotilapia tridentiger is a species of cichlid endemic to Lake Malawi where it prefers shallow waters with rocky substrates. This species can reach a length 17 centimetres (6.7 in) TL. This species can also be found in the aquarium trade.
Stigmatochromis is a small genus of haplochromine cichlids that are endemic to Lake Malawi in East Africa.
The redbreast tilapia is a species of fish in the family Cichlidae. It is found widely in the southern half of Africa. Its natural habitats are freshwater lakes and freshwater marshes. It is known as the redbreast kurper in South Africa.
Tropheops is a genus of cichlids endemic to Lake Malawi.
Chindongo is a genus of haplochromine cichlids, the species of which are endemic to Lake Malawi. The genus was described in 2016 with Chindongo bellicosus as the type species, the authors then added species previously classified in the genus Pseudotropheus in the P. elongatus species complex.
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