CALLOPANCHACINI HUBER, 2000

Costa, Wilson J. E. M., 2015, Comparative morphology, phylogeny, and classification of West African callopanchacine killifishes (Teleostei: Cyprinodontiformes: Nothobranchiidae), Zoological Journal of the Linnean Society 175 (1), pp. 134-149 : 138

TRIBE CALLOPANCHACINI HUBER, 2000

Diagnosis

Members of the tribe Callopanchacini differ from other nothobranchiids by six synapomorphies: posterior portion of the mandibular channel consisting of a single open groove (6.1; Fig. 1C ), versus two separated grooves; basihyal pentagonal as a result of a nearly rectangular basihyal cartilage and a triangular bony support (27.1; Fig. 3A,B ), versus subtriangular; dorsal process of the urohyal usually absent, sometimes rudimentary (29.1; Fig. 3C,D ), versus always well developed; presence of a wide bony flap adjacent to the proximal portion of the fourth ceratobranchial (37.1; Fig. 3A,B ), versus flap short or absent; a broad bony flap adjacent to the proximal portion of the fifth ceratobranchial (39.1; Fig. 3A,B ), versus flap short; haemal prezygapophysis of the pre-ural vertebra 2 ventrally directed (57.1; Fig. 5A–G ), versus anteroventrally directed.

Included genera

Archiaphyosemion Radda, 1977 , Callopanchax Myers, 1933 , Nimbapanchax Sonnenberg & Busch, 2009 , and Scriptaphyosemion Radda & Pürzl, 1987 .

Figures

Figure 1. Cephalic laterosensory system of Nimbapanchax leucopterygius: A, left side, dorsal view; B, left side, ventral view; and C, left lateral view. Numbers in brackets are character states numbered according to Appendix S2. Scale bars: 1 mm.

Figure 3. Hyoid and branchial arches: ventral portion in dorsal view and dorsal portion in ventral view, of Archiaphyosemion guineense (A) and Callopanchax monroviae (B); urohyal, left lateral view, of A. guineense (C), and C. monroviae (D). Numbers in brackets are character states numbered according to Appendix S2. Larger stippling indicates cartilage. Scale bars: 1 mm.

Figure 5. Vertebrae and caudal skeleton (all in left lateral view except A, in laterodorsal view): first vertebrae of Nimbapanchax leucopterygius (A) and Callopanchax monroviae (B); epipleural rib of second precaudal vertebra of N. leucopterygius (C); fourth caudal vertebra of C. monroviae (D) and N. leucopterygius (E); caudal skeleton of Scriptaphyosemion guignardi (F) and Callopanchax occidentalis (G). Larger stippling indicates cartilage. Scale bars: 0.5 mm.