Datos morfológicos de Malacoctenus erdmani
Claves de identificación
Abnormalities
Referencia principal Williams, J.T., 2003
El aspecto se refiere a
Bones in OsteoBase

Atributos sexuales

órganos especializados
diverso aspecto
diversos colores
Observaciones

Características descriptivas del juvenil y del adulto

Características llamativas
Forma lateral del cuerpo elongated
Sección transversal
Perfil dorsal de la cabeza
Tipo de ojos
Tipo de boca/hocico
Posición de la boca
Type of scales
Diagnosis

Common amongst Labrisomids: small, often elongate fishes; largest species about 20 cm standard length, most under 10 cm standard length. Head usually with cirri or fleshy flaps on anterior nostrils, eyes, and laterally on nape; gill membranes continuous with each other across posteroventral surface of head. Each jaw with an outer row of relatively large, canine-like or incisor-like teeth, often with patches of smaller teeth behind; teeth usually also present on vomer. Dorsal and anal fins long, frequently highest anteriorly; dorsal-fin spines often flexible, outnumbering segmented dorsal-fin soft rays; 2 usually flexible spines in anal fin; pelvic fins inserted anterior to pectoral-fin bases, with 1 spine not visible externally; all fin rays, including those of caudal, unbranched (simple). Cycloid (smooth to touch) scales present at least posteriorly on body. Body coloration: varying from drab to brilliant hues; usually with irregular vertical bands, spots, or marbled pattern. Species distinguished by: dorsal fin consisting of spines and 7 to 37 segmented rays; cirri on anterior nostril and bove eye usually 2; two or more cirri on each side of nape just anterior to dorsal-fin origin; pectoral-fin rays usually 16; length of shortest pelvic-fin ray (third ray very difficult to see) contained fewer than 4 times in length of longest ray; pelvic-fin soft rays 3 (innermost ray may be reduced in length and folded over middle ray); scales in lateral-line series 40 to 69 (some scales in posterior portion of lateral line may lack sensory tubes, but are included in count); pectoral-fin base naked; maxillary bone sheathed; small teeth present behind large teeth in outer row (small teeth inconspicuous and easily knocked out while probing); teeth absent on palatines; distinct, dark blotch at bases of posteriormost dorsal-fin spines (Ref.52855).

Facilidad de identificación

Características merísticas de Malacoctenus erdmani

Líneas laterales interrumpido: No
Escalas en la línea lateral 40 - 69
Escalas de la línea lateral con poros
Escalas en las series laterales
Filas de escalas sobre la línea lateral
Filas de escalas debajo de la línea lateral
Escalas alrededor del peduncule caudal
Barbillas
Hendiduras branquiales (solamente tiburones/rayas)
Branquispinas
en el miembro inferior
en el miembro superior
total
Vértebra
preanal
total

Aletas

Aleta(s) dorsal(es)

Cualidades extending over most of the back length
Número de las aletas 1
número de pínnulas Dorsal   
Ventral  
total de espinas
Total de rayos suaves 7 - 37
Aleta adiposa

Aleta caudal

Cualidades more or less truncate; more or less normal

Aleta(s) anal(es)

Número de las aletas 1
total de espinas 2 - 2
Total de rayos suaves

Aletas apareadas

Pectoral Cualidades  more or less normal
espinas     
Rayos-suaves   16 - 16
Pélvicas Cualidades  more or less normal
posición    jugular
espinas     1
Rayos-suaves   3 - 3
Referencia principal (por ej. 9948)
Glosario ( por ej. cephalopods )
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cfm script by eagbayani, 17.10.00, php script by rolavides, 13/03/08 ,  Última modificación por sortiz, 06.27.17