Cyphotilapia
| Cyphotilapia | ||||||||||||
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Tanganyika bump head ( Cyphotilapia frontosa ) |
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| Systematics | ||||||||||||
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| Scientific name of the tribe | ||||||||||||
| Cyphotilapiini | ||||||||||||
| Takahashi , 2003 | ||||||||||||
| Scientific name of the genus | ||||||||||||
| Cyphotilapia | ||||||||||||
| Regan , 1920 |
Cyphotilapia ( Gr .: "kyphos" = hump + tilapia ) is a genus from the family of cichlids (Cichlidae), whichis endemic to the East African Lake Tanganyika . There are two types, the Tanganyika bump head ( Cyphotilapia frontosa ) which is native to the northern part of Lake Tanganyika and Cyphotilapia gibberosa from the southern section of the lake.
features
Cyphotilapia species are high-backed, laterally flattened and, with a light basic color, show six or seven blackish to deep blue stripes on the sides of the body, the first of which runs through the eye and the last on the tail stalk. The fins are bluish to gray. Older specimens have a strongly pronounced forehead hump. The body height is 38.2 to 51.2% of the SL . The base of the dorsal fin is 53.8 to 64.6% of the length of the SL. Two to three rows of scales lie between the upper and lower side lines . In a central longitudinal row on the side of the body, Cyphotilapia species have 33 to 36 scales. There are 31 to 62 teeth on the outer row of teeth in the upper jaw.
Way of life
Cyphotilapia species live in more or less large groups mostly at depths of 30 to 40 meters, older animals also deeper. The fish feed mainly on molluscs and smaller fish. They are mouthbrooders that usually spawn in caves. The females look after the young fish up to an age of 6 weeks. A clutch can contain a maximum of 50 eggs, but there are rarely more than 20 to 25 eggs. They are almost the size of a pea.
Systematics
The genus was introduced in 1920 by the British ichthyologist Charles Tate Regan with Cyphotilapia frontosa as the only species. 2003 described two Japanese ichthyologists the second type. Cyphotilapia is the only genus of the tribe Cyphotilapiini within the subfamily Pseudocrenilabrinae . The sister genus of Cyphotilapia is likely Trematochromis .
literature
- Tetsumi Takahashi and Kazuhiro Nakaya, 2003. New species of Cyphotilapia (Perciformes: Cichlidae) from Lake Tanganyika, Africa. Copeia 2003 (4): 824-832. doi: 10.1643 / IA03-148.1
Individual evidence
- ↑ Weiss, JD, Cotterill, FPD & Schliewen, UK (2015): Lake Tanganyika — A 'Melting Pot' of Ancient and Young Cichlid Lineages (Teleostei: Cichlidae)? PLoS ONE , 10 (4): e0125043. April 30, 2015, DOI: 10.1371 / journal.pone.0125043
Web links
- Cyphotilapia on Fishbase.org (English)