Réf. Princ. | Pullin, R.S.V. (ed.), 1988 |
Ressemble à | mâle; femelle |
Bones in OsteoBase |
Organes spécialisés | no special organs |
Apparence différente | males alike females |
Couleurs différentes | males alike females |
Remarques | Mature fish greenish with pink or reddish bellies (Ref. 6150) |
Éléments remarquables | none |
Profil du corps | fusiform / normal |
Section transverse | compressed |
Profil dorsal de la tête | clearly convex |
Type d'yeux | more or less normal |
Type de bouche/museau | more or less normal |
Position de la bouche | terminal |
Type of scales | cycloid scales |
Diagnose |
Diagnosis: A large, deep-bodied species with a steep head profile, narrow head and small mouth; often appearing brownish with a white belly, some individuals have bright red bellies (Ref. 118638). The sexes look very similar, although males are usually larger (Ref. 118638). Very difficult to distinguish from Coptodon zillii, but C. rendalli usually have a steeper head profile and less prominent vertical bars; in East Africa, the tailfin of C. rendalli is often divided into a brownish upper part and yellowish lower part, whereas that of C. zillii is uniform and spotted (Ref. 118638). Description: moderately deep-bodied, ovoid shaped; head relatively short; mouth small (Ref. 52307). Colouration: head and body mid to dark olive-green dorsally, paling over the flanks (Ref. 4967, 34290). Body usually with vertical bars only (Ref. 4967, 34290), 6-8 on head and body (Ref. 52307). Scales with a dark basal crescent (Ref. 4967, 34290, 52307). Dorsal fin olive-green with a thin red margin and white to grey dark oblique spots on the soft rays; caudal fin spotted on dorsal half and red or yellow on ventral half (Ref. 4967, 34290). Lower lips, throat, lower parts of cheeks and opercles, breast and belly, as well as some lower parts of caudal peduncle, light to deep red (depending on behavioral situation) in most, but not all populations; anal fin reddish (Ref. 52307). |
Facilité d'identification |
Lignes latérales | 1 Interrompu(e)(s): No |
Écailles sur la ligne latérale | 29 - 32 |
Écailles perforées de la ligne latérale | |
Écailles en série latérale | |
Rangées d'écailles au-dessus de la ligne latérale | |
Rangées d'écailles au-dessus de la ligne latérale | |
Écailles autour du pédoncule caudal | |
Barbillons | 0 |
Fentes branchiales (requins et raies uniquement) | absent |
Branchiospines | |
sur le membre inférieur | |
sur le membre supérieur | |
Total | 8 - 12 |
Vertèbres | |
préanal(e) | |
Total | 29 - 29 |
Attributs | extending over most of the back length |
Nombre de nageoires | 1 |
Nombre de pinnules | Dorsal |
Ventral | |
Total d'épines | 15 - 17 |
Total de rayons mous | 10 - 13 |
Nageoire adipeuse | absent |
Attributs | more or less truncate; more or less normal |
Nombre de nageoires | 1 |
Total d'épines | 3 - 3 |
Total de rayons mous | 9 - 10 |
Pectorale(s) | Attributs more or less normal |
Épines | |
Rayons mous | |
Pelvienne(s) | Attributs more or less normal |
position thoracic beneath origin of D1 | |
Épines | |
Rayons mous |