Morfologiska data för Brockius albigenys
Bestämningsnycklar
Abnormalities
Main Ref. Williams, J.T., 2003
Utseende refererar till
Bones in OsteoBase

Könskaraktärer

specialiserade organ
annat utseende
andra färger
Anmärkningar

Karaktäristiska egenskaper hos juveniler och adulter

Särskilt slående egenskaper
Lateral kroppsform elongated
Tvärsnitt
Dorsal profil av huvudet
Ögontyp
Typ av mun/snyte
Munnens placering
Type of scales
Diagnos

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 and often on palatines (roof of mouth). 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 and only 2 or 3 segmented rays; all fin rays, including those of caudal, unbranched (simple). Lateral-line tubes or canals varying from complete (extending entire length of body) to present only on anterior portion of body. 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; lateral-line tubes or canals present at least anteriorly on body; two or more cirri on each side of nape just anterior to dorsal-fin origin; 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); maxillary bone exposed posteriorly; patches of small teeth behind outer row of large teeth in at least upper jaw; teeth present or absent on palatines (palatine teeth, when present, same size as or smaller than those on vomer); opercular ocellus absent (Ref.52855).

Ease of Identification

Meristiska karaktäristika för Brockius albigenys

Sidolinjer avbruten: No
Fjäll längs sidolinje 40 - 69
Porbärande fjäll längs sidolinje
Fjäll i lateralserie
Antal rader fjäll ovan sidolinje
Antal rader fjäll under sidolinje
Fjäll runt stjärtfensspole
Skäggtömmar
Gälspringor (endast hos hajar/rockor)
Gälräfständer
på undre del av gälbåge
på övre del av gälbåge
totalt
Ryggkotor
preanal
totalt

Fenor

Ryggfena/fenor

Egenskaper extending over most of the back length
Antal fenor 1
Antal småfenor Dorsal   
Ventral  
Totalt antal hårda fenstrålar
Totalt antal mjuka fenstrålar 7 - 37
Fettfena

Stjärtfena

Egenskaper more or less truncate; more or less normal

Analfena/fenor

Antal fenor 1
Totalt antal hårda fenstrålar 2 - 2
Totalt antal mjuka fenstrålar

Pariga fenor

Bröstfena Egenskaper  more or less normal
Fenstrålar hårda     
Fenstrålar mjuka   
Bukfenor Egenskaper  more or less normal
Position    jugular
Fenstrålar hårda     1
Fenstrålar mjuka   3 - 3
Main Ref. (t.ex. 9948)
Ordlista ( t.ex. cephalopods )
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