Morphology Summary - Astatotilapia tchadensis
Dati morfologici di Astatotilapia tchadensis
Chiavi di identificazione
Abnormalities
Rif. principale. Trape, S., 2016
L'aspetto si riferisce a
Bones in OsteoBase

Attributi del sesso

Organi specializzati
Aspetto diverso
Colori diversi
Osservazioni

Caratteristiche descrittive di giovani e adulti

Caratteristiche sorprendenti
Forma del corpo laterale  (shape guide) fusiform / normal
Sezione trasversale
Profilo dorsale della testa
Tipo di occhi
Tipo di bocca/bocca
Posizione della bocca
Tipo di scala
Diagnosi

Diagnosis: A large haplochromine cichlid fish characterized by the following combination of characters: a black bar between the eye and the corner of mouth, rounded orange spots on the anal fin in adult males, scales ctenoid, outer jaw teeth bicuspid, inner teeth tricuspid, 16 scales around the peduncle, no papillose swelling on either side of pharynx, lower limb of first gill arch with 7-8 gill rakers, dorsal fin with 13-14 spines and 9-11 soft rays, anal fin with 3 spines and 8-9 soft rays, 29 or 30 lateral line scales, lower pharyngeal dentition with enlarged molariform teeth in the central rows (Ref. 112399).

Description: Dorsal fin with 13-14 spines and 9-11 soft rays; anal fin with 3 spines and 8-9 soft rays; caudal fin with 23 soft rays; pectoral fin with 13 soft rays; pelvic fin with 6 rays (Ref. 112399). Two lateral lines with 18-20 and 5-11 scales perforated on the upper and lower lateral lines respectively; 27+2 or 28+2 lateral line scales; 5.5 scales between lateral line and origin of first dorsal fin; 10-11 scales between lateral line and midventral body profile; 4 or 5 scales between the pectoral and pelvic fin bases; 2 scales between the upper and lower lateral lines; 16 scales around the peduncle; scales ctenoid (Ref. 112399). Seven to eight gill rakers on lower limb of first gill arch, total 10-13 on first gill arch; outer jaw teeth bicuspid; inner teeth tricuspid; no papillose swelling on either side of pharynx; lower pharyngeal bone and dentition: dentigerous surface approximately equilateral, teeth forming the median rows enlarged with molariform and submolariform crowns (Ref. 112399).

Colouration: In life, head and body light brown or silver; a vertical black bar between the front lower part of the eye and the part of the head immediately posterior to the corner of the mouth; two median incomplete horizontal black bars between the eyes; a vertical black bar in the middle of the opercula; a black spot present on the postero-dorsal angle of the opercula; 6-7 black cross bars that descent below the midlines of sides; two or three rounded orange spots clearly apparent on the anal fin, these spots without contrasting border and without translucent surround; no tilapian mark at the beginning of the soft part of the dorsal fin; fine orange spots at the basis of the soft rays of the dorsal fin (Ref. 112399). In preservative, head and body brown with black bars poorly contrasting; spots on anal fin unpigmented (Ref. 112399).

Facilità di identificazione

Caratteristiche meristiche di Astatotilapia tchadensis

Linee laterali Interrotto: No
Scaglie sulla linea laterale 29 - 30
Scaglie della linea laterale porizzata
Scale in serie laterale
File di scaglie sopra la linea laterale 5.5 - 5.5
File di scaglie sotto la linea laterale 10 - 11
Scaglie intorno al peduncolo caudale 16 - 16
Barbigli
Fessure branchiali (solo squali/razze)
Rastrellatori di branchie
sull'arto inferiore 7 - 8
sull'arto superiore
totale 10 - 13
Vertebre
preanale
totale

Finlandese

Pinna/e dorsale/i

Attributi no striking attributes
Numero di pinne 1
Alette No. Dorsal   
Ventral  
Totale spine 13 - 14
Totale raggi molli 9 - 11
Pinna adiposa absent

Caudal fin  (shape guide)

Attributi

Pinna(e) anale(i)

Numero di pinne 1
Totale spine 3 - 3
Totale raggi molli 8 - 9

Pinne accoppiate

Pettorale Attributi  more or less normal
Dorsali     0
Raggi morbidi   13 - 13
Pelvici Attributi  more or less normal
Posizione    thoracic  behind origin of D1
Dorsali     0
Raggi morbidi   6 - 6
(es. 9948)
(es. oophagy)
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