Données morphologiques de Zaireichthys kavangoensis
Clés d'identification
Abnormalities
Réf. Princ. Eccles, D.H., D. Tweddle and P.H. Skelton, 2011
Ressemble à
Bones in OsteoBase

Attributs sexuels

Organes spécialisés
Apparence différente
Couleurs différentes
Remarques

Caractéristiques descriptives des juvéniles et adultes

Éléments remarquables
Profil du corps elongated
Section transverse
Profil dorsal de la tête
Type d'yeux
Type de bouche/museau
Position de la bouche sub-terminal/inferior
Type of scales
Diagnose

Diagnosis: This species differs from Zaireichthys conspicuus, Z. kunenensis, Z. lacustris and Z. maravensis in the narrower premaxillary tooth patch, less than 33% of mouth width; from Z. monomotapa in shorter lateral line and smaller number of rays in the dorsal fin and caudal fins, II,5 vs. II,6-7 and 11-13 vs. 14-16 respectively; from Z. kafuensis in the narrower head, smaller premaxillary tooth patch and smaller numbers of rays in median fins; from Z. pallidus in the shorter barbels, e.g. maxillary 1.3±0.1 times in head length vs. 1.0±0.1, steeper snout and in the colour pattern, rows of blotches vs. pallid with fine spots (Ref. 86935).

Description: Lateral line moderate, usually ending above the anterior half of the anal fin (Ref. 86935). Snout bluntly rounded, not protruding much beyond mouth, strongly arched in profile; eye relatively large, 4.6±01 in head length; mouth width less than half head width; barbels near mean length for the genus, the maxillary barbel reaching the base of the pectoral-fin spine (Ref. 86935). Dorsal fin II,5; caudal fin slightly emarginate, with the lower lobe longer than the upper, with 11-13 branched rays; anal fin with 9-12 rays, the first 4-6 simple; pectoral fins with 6-7 branched rays, only the holotype with 7, the spine bearing 6-9 serrae (Ref. 86935). Premaxillary tooth patch narrow; branchiostegal rays 6-7, usually 7 (Ref. 86935). Vertebrae 37-38 plus the ural complex, the first haemal spine usually on the 14th vertebra but also on 15th and 16th; six pairs of ribs; humeral process long, ending between supra-occipital process and dorsal, or beyond origin of dorsal (Ref. 86935).

Colouration: A series of dark patches dorsally, a second series of about ten patches mid-laterally and a third series ventro-laterally from above back of pelvic to above base of anal, scattered brown flecks between the blotches anteriorly, becoming more widely spaced posteriorly; head marbled, cheeks pale; melanophores on body small; dark spot at tip of dorsal spine; dark patch at base of caudal fin, bar about midway along fin and trace of another bar near tip of fin (Ref. 86935).

Facilité d'identification

Caractéristiques méristiques de Zaireichthys kavangoensis

Lignes latérales Interrompu(e)(s): No
Écailles sur la ligne latérale
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
Fentes branchiales (requins et raies uniquement)
Branchiospines
sur le membre inférieur
sur le membre supérieur
Total
Vertèbres
préanal(e)
Total 37 - 38

Nageoires

Nageoire(s) dorsale(s)

Attributs no striking attributes
Nombre de nageoires 1
Nombre de pinnules Dorsal   
Ventral  
Total d'épines 2 - 2
Total de rayons mous 5 - 5
Nageoire adipeuse present

Nageoire caudale

Attributs more or less truncate

Nageoire(s) anale(s)

Nombre de nageoires 1
Total d'épines 0 - 0
Total de rayons mous 9 - 12

Nageoires paires

Pectorale(s) Attributs  more or less normal
Épines     1
Rayons mous   6 - 7
Pelvienne(s) Attributs  more or less normal
position    abdominal  behind origin of D1
Épines     
Rayons mous   
Réf. Princ. (ex. 9948)
Glossaire ( ex. cephalopods )
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