Morphology Data of Tanakia latimarginata
Identification keys
Abnormalities
Main Ref. Kim, D., H.-B. Jeon and H.Y. Suk, 2014
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks Matures males exhibit breeding color ( vs. no breeding color in mature females, but with an elongated ovipositor light grey to yellowish-grey).

Descriptive characteristics of juvenile and adult

Striking features
Body shape lateral fusiform / normal
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth sub-terminal/inferior
Type of scales cycloid scales
Diagnosis

Tanakia latimarginata can be readily diagnosed from its phylogenetically closest congener T. lanceolata by the following characters: body generally brownish laterally in life (vs. generally silvery laterally); dorsal fin of mature males in life with an ivory to reddish-orange band distally (vs. a pale pink to pinky red band distally); and anal-fin of mature males with distal margin black, two ivory to orange bands separated by an indistinct dark band of similar width (vs. distal margin red to pink, an indistinct black band proximally). It differs from T. koreensis by the width of the black distal margin of the anal-fin of mature males (greater than the pupil diameter posteriorly to the mid-point of the fin vs. greater than or as wide as the pupil diameter posteriorly only to the second or third branched soft fin-ray), by having a light colored ovipositor in mature females (light grey to yellowish-grey vs. brownish-grey to black) and by the shape of the fifth infraorbital bone (irregularly shaped, widest dorsally vs. rectangular with uniform width along entire length or triangular, widest ventrally). It can be further distinguished from T. lanceolata and T. koreensis by having a parietal branch of the supraorbital sensory canal reaching to or extending past of the border between the frontal and parietal (vs. parietal branch of supraorbital sensory canal reaching to or extending past the border between the frontal and pterotic, without contact to the parietal) (Ref. 97360).

Ease of Identification

Meristic characteristics of Tanakia latimarginata

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales 32 - 35
Scales in lateral series
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   
Ventral  
Spines total
Soft-rays total 11 - 11
Adipose fin absent

Caudal fin

Attributes forked

Anal fin(s)

Fins number
Spines total
Soft-rays total 12 - 13

Paired fins

Pectoral Attributes  more or less normal
Spines     
Soft-rays   
Pelvics Attributes  more or less normal
Position    abdominal  before origin of D1
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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