Morphology Summary - Luciobarbus zayanensis
Données morphologiques de Luciobarbus zayanensis
Clés d'identification
Abnormalities
Réf. principale Doadrio, I., M. Casal-López, S. Perea and A. Yahyaoui, 2016
Ressemble Ă 
Bones in OsteoBase

Attributs sexuels

Organes spécialisés
Apparence différente
Couleurs différentes
Remarques The pectoral and ventral fins are larger in males than in females; the pectoral fin length is 76-83% of head length in females and 72-90% of head length in males; the ventral fin length is 65.5-74% of head length in females and 65.5-85% of head length in males (Ref. 107618). Males exhibited numerous equal-sized nuptial tubercles distributed over the body and fins (Ref. 107618).

Caractéristiques descriptives des juvéniles et adultes

Éléments remarquables
Profil du corps  (shape guide) elongated
Section transverse
Profil dorsal de la tĂŞte
Type d'yeux
Type de bouche/museau
Position de la bouche
Type d'échelle
Diagnose

Diagnosis: This species differs from other species of Luciobarbus by the following combination of characters: 49-53 scales along the lateral line, 8.5-9.5 scales above lateral line, and 5.5-7.5 scales below lateral line; the last single ray of the dorsal fin is strongly ossified with a maximum width of 12-14.5% of its length; the last single dorsal fin ray is densely denticulate along its length and, in adults, the number of denticulations is maller than 23; the skull is narrow, with the width of the ethmoid bone smaller than its length; the inter-orbital distance is 1.2-1.9 times eye diameter; the pharyngeal teeth formula in adults is 4.3.2; the number of vertebrae is 41-43; large deep caudal peduncle 2.1-2.6% of anal peduncle length; and lachrymal bone with narrow posterior segment, a manubrium (Ref. 107618).

Description: The body is elongated with maximum body depth 18-24% of standard length in males and 21-24% in females (Ref. 107618). The head is typically sharp and narrow; the inter-orbital distance is 1.2-1.9 times the eye diameter in males and 1.4-1.9 times in females; the skull is narrow, with the ethmoid bone longer than wide; the frontal bones are narrower relative to other reophilic barbs, notably in the anterior part; infraorbital bones are narrow, and the lachrymal bone is longer than in other reophilic barbs and possesses a long manubrium; the height of the manubrium is 10-13% the lachrymal bone length; the kinethmoid bone is more robust than the one found in other reophilic barbs (Ref. 107618). Thick lips and barbels with granular appearance; the first pair of barbels is short and positioned at the anterior extreme of the mouth, reaching the insertion of the second pair of barbels; the second pair of barbels is thick and reaches the posterior edge of the eye; the anterior barbel length is 20.1-29.9%, and the second 29.7-39.5% of head length; the snout is prominent, with preorbital length 10.9-12.1% of standard length in females and 10.6-13.2% of standard length in males; the preorbital length is greater than the postorbital length (Ref. 107618). The dorsal fin is located posteriorly on the body, with the predorsal distance being 48.9-52.5% of standard length in females and 48.5-52.5% in males; the profile of the dorsal fin is concave, with the last single ray of the dorsal fin ossified with few and strong denticulations; dorsal fin with 3-5 unbranched rays and 8 branched rays; anal fin with 3 unbranched rays and 5 branched rays; pectoral fin with 1 unbranched ray and 15-16 branched rays; ventral fin with 1 unbranched ray and 6 branched rays; the caudal fin length is 20-23% of standard length in females and 18.4-24.5% of standard length in males (Ref. 107618). Number of scales on the lateral line 49-53; 8.5-9.5 scales above lateral line; 5.5-7.5 scales below lateral line (Ref. 107618). The caudal peduncle is elongated, and the least body depth is 11-11.9% of standard length in females and 9.5-11.8% of standard length in males; the length of the anal caudal peduncle is 2.1-2.3 times the height of the anal peduncle in females and 2.1-2.6 times in males (Ref. 107618). Pharyngeal teeth in adults 4.3.2 (Ref. 107618). Number of gill rakers 13-16; number of vertebrae 41-43 (Ref. 107618).

Colouration: The colouration is brownish with a paler ventral area and some black spots along the body (Ref. 107618).

Facilité d'identification

Caractéristiques méristiques de Luciobarbus zayanensis

Lignes latérales Interrompu(e)(s): No
Écailles sur la ligne latérale 49 - 53
Écailles perforées de la ligne latérale
Écailles en série latérale
Rangées d'écailles au-dessus de la ligne latérale 8.5 - 9.5
Rangées d'écailles au-dessus de la ligne latérale 5.5 - 7.5
Écailles autour du pédoncule caudal
Barbillons 4
Fentes branchiales (requins et raies uniquement)
Branchiospines
sur le membre inférieur
sur le membre supérieur
Total 13 - 16
Vertèbres
préanal(e)
Total 41 - 43

Nageoires

Nageoire(s) dorsale(s)

Attributs no striking attributes
Nombre de nageoires 1
Nombre de pinnules Dorsal   
Ventral  
Total d'épines 0 - 0
Total de rayons mous 11 - 13
Nageoire adipeuse absent

Nageoire caudale  (shape guide)

Attributs forked; more or less normal

Nageoire(s) anale(s)

Nombre de nageoires 1
Total d'épines 0 - 0
Total de rayons mous 8 - 8

Nageoires paires

Pectorale(s) Attributs  more or less normal
Épines     0
Rayons mous   16 - 17
Pelvienne(s) Attributs  more or less normal
position    abdominal  beneath origin of D1
Épines     0
Rayons mous   7 - 7
(ex. 9948)
(ex. oophagy)
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Commentaires et Corrections
cfm script by eagbayani, 17.10.00, php script by rolavides, 13/03/08 ,  Dernière modification par sortiz, 06.27.17