Morphology Summary - Malapterurus microstoma
Dados morfológicos de Malapterurus microstoma
Chaves de identificação
Abnormalities
Ref. principal Norris, S.M., 2002
Aparência refere-se a
Bones in OsteoBase

Atributos do sexo

órgãos especializados
aparência diferente
cores diferentes
Notas

Características descritivas dos juvenis e dos adultos

Características determinantes
Forma lateral do corpo  (shape guide) fusiform / normal
Secção transversal circular
Perfil dorsal da cabeça
Tipo de olhos
Tipo de boca/focinho
Posição da boca
Tipo de balança
Diagnose

Diagnosis: tooth patches narrow; horizontally based pectoral fins, placed low on the body; snout sharply narrowed rostrally; 40-42 vertebrae; 7-29 gill-rakers; 11-12 anal-fin rays; caudal saddle and bar pattern very faintly expressed; 7-8 branched caudal-fin rays; body finely spotted; lateral line complete (Ref. 44050).

Description: head depressed; snout and tooth patches narrow; body more or less fusiform; 17-18 abdominal vertebrae; 23-25 caudal vertebrae; 19 caudal-fin rays (arrangement: ii-7-8-ii) (Ref. 44050).

Coloration: bicolored, occasionally sharply so; dorsum tan or light brown, venter pale and largely unpigmented, except for slight stippling on the underside of the head and around anal and pelvic fin bases, and scattered small spots; flank and dorsum well marked with generally small spots, 1-1.5 times an eye diameter large or smaller, with sometimes larger blotches posteriad; pectoral fin unspotted, rays may be dusky in adults; pelvic fin generally opaque, unspotted; adipose with pale distal margin, otherwise marked as dorsum; anal fin matches body ground color, lightly spotted in adults, with a pale distal margin in juveniles and adults; distal 2/3 of caudal fin dusky in juveniles and young, bounded by a clear distal margin and pale basal crescent; caudal fin in adults matches dorsum and flank ground color, except for a clear distal margin, and is well marked with fine spots in large adults (larger than 40cm SL); caudal saddle and bar pattern weakly developed, even in young; saddle slightly darker than ground color and extends to about mid-depth; pale interspace slightly lighter than ground color; caudal bar somewhat darker than saddle and present mostly on the caudal peduncle (not the caudal fin) (Ref. 44050).

Facilidade de identificação

Características merísticas de Malapterurus microstoma

Linhas laterais interrompido: No
Escamas na linha lateral
Escamas da linha lateral com poros
Escamas em séries laterais
Fileiras de escamas acima da linha lateral
Fileiras de escamas abaixo da linha lateral
Escamas em torno do pedúnculo caudal
Barbilhões
Fissuras branquiais (tubarões/raias apenas)
Raios branquiais
no membro inferior 5 - 24
no membro superior 2 - 5
total 7 - 29
Vértebras
Pré-anal
total 40 - 42

Barbatana

Barbatana(s) dorsal(dorsais)

Atributos greatly reduced or absent
Número de barbatanas
No. de pínulas Dorsal   
Ventral  
Total de espinhos
Total de raios moles
Barbatana adiposa present

Barbatana caudal  (shape guide)

Atributos more or less normal

Barbatana(s) anal(anais)

Número de barbatanas 1
Total de espinhos 0 - 0
Total de raios moles 10 - 13

Barbatana pares

Peitoral Atributos  more or less normal
espinhos     0
Raios moles   8 - 10
Pélvica Atributos  more or less normal
posição    abdominal
espinhos     0
Raios moles   6
(ex. 9948)
(ex. oophagy)
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Comentários & correcções
cfm script by eagbayani, 17.10.00, php script by rolavides, 13/03/08 ,  modificado pela última vez por sortiz, 06.27.17