Papers/Abstracts

Aphyosemion mengilai, a new killifish species from the northern Massif du Chaillu, central Gabon (Cyprinodontiformes: Nothobranchiidae)

Stefano Valdesalici and Wolfgang Eberl

aqua International Journal of Ichthyology, pp. 111-116, Volume 20 issue 2, 15 April 2014

Abstract

Aphyosemion mengilai, new species, is described from small streams belonging to the hydrographic system of the Ikoy River basin on the northern part of the Massif du Chaillu, central Gabon. It is similar to A. grelli and distinguished from all other congeners in having grey to black margins in the unpaired fins in males and females. It can be distinguished from A. grelli by having more dorsal and anal fin rays in males and females, by the more anterior insertion of dorsal fin relative to anal-fin origin, by having more scales on transverse series, more scales around caudal peduncle, and by the presence of light blue submarginal stripes in dorsal, anal, and caudal fin in females. Aphyo­semion mengilai belongs to a clade, herein named A. grelli species group, which is diagnosed by the unique distinctive colour pattern of males and females consisting of grey to black margins on dorsal and anal fins.

Full Text | PDF (141 KB)

REFERENCES

AMIET, J. L. 1987. Faune du Cameroun. Vol. 2. Le genre Aphyosemion Myers (Pisces: Teleostei: Cyprinodonti formes). Sciences Naturelles, Compiègne. 262 pp.

HOEDEMAN, J. 1958. The frontal scalation pattern in some groups of toothcarps (Pisces: Cyprinodontiformes). Bulletin of Aquatic Biology, 1 (3): 23-28.

HUBER, J. H. 1994. Aphyosemion passaroi, espèce inédite du Gabon sud-oriental, au patron de coloration unique et description complémentaire de Aphyosemion decorsei (Pellegrin). Cyprinodontiformes, plocheilidae. Revue française d’Aquariologie Herpétologie, 20 (3): 77-79.

HUBER, J. H. 2000. Killi-Data 2000. Updated checklist of taxonomic names, collecting localities and bibliographic references of oviparous Cyprinodont fishes (Cyprinodonti formes). Société Française d’Ichtyologie, Paris. 538 pp.

HUBER, J. H. 2005. Identifikation einer kleinen Sammlung von Aphyosemion aus Zaire im Münchener Museum (Z.S.M.), mit weiteren Kommentaren über die Validität der be kannten Komponenten der elegans-Superspezies. 1. Teil. Deutsche Killifisch Gemeinschaft Journal, 37: 8-21.

HUBER, J. H. & RADDA, A. C. 1977. Cyprinodontiden-Studien in Gabun. IV. Das Du Chaillu-Massiv. Aquaria: Vivaristische Fachzeitschrift für die Schweiz und Österreich, 24: 99-110.

RADDA, A. C. 1980. Beschreibung zweier neuer Aphyosemion-Arten aus Süd-Gabun. Aquaria 27 (11): 201-205.

SCHEEL, J. J. 1968. Rivulins of the Old Word. Tropical Fish Hobbyist Publication, Neptune City, 480 pp.

TAYLOR, W. R. & VAN DYKE G.C. 1985. Revised procedures for staining and clearing small fishes and other vertebrates for bone and cartilage study. Cybium, 9 (2): 107-109.

VALDESALICI S. 2010. Nothobranchius boklundi (Cyprinodontiformes: Nothobranchiidae): a new annual killifish with two male colour morphs from the Luangwa River basin, Zambia. aqua, International Journal of Ichthyology 16 (2): 51-60.

VALDESALICI S. & EBERL W. 2013. Aphyosemion grelli (Cyprinodontiformes: Nothobranchiidae), a new species from the Massif du Chaillu, southern Gabon. Vertebrate Zoology, 63 (2): 155-160.

VAN DER ZEE, J. R. & SONNENBERG, R. 2010. Aphyosemion teugelsi (Cyprinodontiformes: Nothobranchiidae), a new species from a remote locality in the southern Democratic Republic of the Congo. Zootaxa, 2724: 58-68.

VAN DER ZEE, J. R. & SONNENBERG, R. 2011. Aphyosemion musafirii (Cyprinodontiformes: Nothobranchiidae), a new species from the Tshopo Province in the Democratic Republic of Congo, with some notes on the Aphyosemion of the Congo Basin. Bonn zoological Bulletin 60: 73-87.

Previous post

Two new species of freshwater gudgeons (Eleotridae: Mogurnda) from the Arguni Bay Region of West Papua, Indonesia

Next post

List of issues

The Author

Rossella

Rossella

No Comment

Leave a reply