Lamprologus werneri
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Museum specimen from Lamprologus werneri |
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| Scientific name | ||||||||||||
| Lamprologus werneri | ||||||||||||
| Poll , 1959 |
Lamprologus werneri is a species of African cichlid that occurs in the western Congo Basin in the Malebo pool and in the rapids of the Congo downstream.
description
Lamprologus werneri has an elongated, graceful body, the height of which is 17 to 20.5% of the standard length . Males reach a standard length of 9 cm, females remain significantly smaller at just under 6 cm. The head length is around 30% of the standard length. The fish are gray with a purple tinge. There are five or six dark crossbars on the flanks. The dorsal and anal fins are dark in front and light gray in the back. The caudal fin is sometimes also darkly pigmented. The caudal fin and the soft rayed section of the dorsal fin are patterned with longitudinal rows of white dots. The teeth in both jaws are single-pointed and sharp. At the very front of the symphysis there are eight greatly enlarged fangs. The small teeth of the inner rows of teeth are arranged in 5 to 8 irregular rows. On the first gill arch there are 8 or 9 narrow gill rakes . Lamprologus werneri has 31 to 33 vertebrae. The cheeks are scaly, the gill cover is partially scaled. Towards the belly and near the dorsal fin, the scales get smaller and smaller. The dorsal and anal fins are scaly, the caudal fin is mostly scaly. Lamprologus werneri differs from all other Lamprologus species in the Congo Basin in that it has 15 trunk vertebrae, all others have 14 or, in rare cases, only 13. The intestine is short and its length is about 55% of the standard length. In gastric and intestinal examinations, the remains of insects and fish scales were found there.
- Fins formula : dorsal XVIII – XX / 7–9, anal V – VII / 5–7, caudal 14.
- Scale formula : 34-37 (SL).
Lamprologus werneri is a cave breeder and aggressive towards other conspecifics, the males are polygamous.
literature
- Robert C. Schelly & Melanie LJ Stiassny : Revision of the Congo River Lamprologus Schilthuis, 1891 (Teleostei: Cichlidae), with Descriptions of Two New Species American Museum of Natural History 2004 ISSN 0003-0082 , Number 3451, 40 pp., August 23 , 2004
- Günther Sterba : The world's freshwater fish. 2nd Edition. Urania, Leipzig / Jena / Berlin 1990, ISBN 3-332-00109-4 .
Web links
- Lamprologus werneri on Fishbase.org (English)