Morphology Summary - Dactyloscopus boehlkei
Dati morfologici di Dactyloscopus boehlkei
Chiavi di identificazione
Abnormalities
Rif. principale. Williams, J.T., 2003
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) elongated
Sezione trasversale
Profilo dorsale della testa
Tipo di occhi
Tipo di bocca/bocca
Posizione della bocca
Tipo di scala
Diagnosi

Common amongst Dactyloscopidae: Small, elongate fishes. Head usually broad and deep, body tapering and compressed behind. Eyes on top of head, often protrusible; mouth moderate to large, oblique to vertical; upper and/or lower lips with fimbriae; jaw teeth minute, in 2 or more series; no teeth on roof of mouth (vomer and palatines). Opercular opening large, gill membrane free from isthmus; opercles membranous, large, usually overlapping on underside of head, typically fringed above with 2 to 24 fleshy fimbriae. Dorsal fin continuous, with an isolated or semi-isolated anterior finlet, or with 1 to 5 separate anterior rays; dorsal-fin spines 7 to 23; anal-fin spines 2; dorsal and anal fins free or united to caudal fin by fragile membranes; pectoral fins broad-based, usually enlarged in mature males; caudal-fin rays simple or branched; pelvic fins under throat (insertion anterior to pectoral-fin base), with 1 spine and 3 thickened segmented rays; all other rays simple. Head and venter naked, body elsewhere with large cycloid scales (smooth to touch); lateral line high anteriorly, deflecting ventrally behind pectoral fin to continue along middle of side to caudal-fin base where terminal lateral-line scale bears ventrally directed canal. Body coloration, variably pale to strongly pigmented with white, brown, or reddish; some forms with characteristic saddle-like bars crossing back; others plain, mottled, or with indications of lateral stripes. Species distinguished by: dorsal-fin spines usually 10; total dorsal-fin elements 39 to 41 (usually 40); dorsal-fin origin on nape; without a distinct anterior finlet. Segmented anal-fin rays 32 or 33. First preopercular canal branched, with 2 or more distal pores. Posterior naris (a single pore) located on anterior rim of preorbital, adjacent to base of tubiform anterior naris; premaxillary pedicels reach well past rear margins of orbits. Expanded eyestalk not exceptionally long and slender (Ref.52855).

Facilità di identificazione

Caratteristiche meristiche di Dactyloscopus boehlkei

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

Finlandese

Pinna/e dorsale/i

Attributi extending over most of the back length
Numero di pinne 1
Alette No. Dorsal   
Ventral  
Totale spine 10 - 10
Totale raggi molli
Pinna adiposa

Caudal fin  (shape guide)

Attributi more or less truncate; more or less normal

Pinna(e) anale(i)

Numero di pinne 1
Totale spine 2 - 2
Totale raggi molli 32 - 33

Pinne accoppiate

Pettorale Attributi  more or less normal
Dorsali     
Raggi morbidi   
Pelvici Attributi  more or less normal
Posizione    jugular
Dorsali     1
Raggi morbidi   3 - 3
(es. 9948)
(es. oophagy)
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