Morphology Data of Thrissina whiteheadi
Identification keys
Abnormalities
Main Ref. Hata, H., P.N. Psomadakis, H.B. Osmany and H. Motomura, 2021
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks

Descriptive characteristics of juvenile and adult

Striking features
Body shape lateral
Cross section compressed
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

This species is distinguished by the following set of characters: upper jaw is relatively long, with its posterior tip slightly beyond opercle posterior margin, but not reaching pectoral-fin insertion; the first supramaxilla absent; teeth on both jaws are robust and enlarged; dorsum no dark lines when preserved; the dark black blotch behind upper part of gill opening is absent or indistinct in preserved specimens; branched rays of dorsal fin 9-11 (modally 10), anal fin usually 39-42 (rarely 43, modally 40) and pectoral fin 11-12 (modally 12); transverse scales 10-11 (11); scale rows in longitudinal series 40-42 (42);

gill rakers on first gill arch, in upper series 12–15 (13), lower series 18-21 (19), total 30-34 (rarely 36, modally 32); gill rakers on second gill arch, in upper series 10-13 (modally 12), lower series 18-21 (19), total 29-34 (31); gill rakers on third gill arch, in upper series 8-10 (8), lower series 10-13 (11), total 19-23 (19); gill rakers on fourth gill arch, in upper series 6-8 (7), lower series 8-11 (10), total 14-19 (17) in total; snout is short, 3.1-3.6% SL pelvic fin short, 7.7-9.0% SL; mandible is short, 15.4-17.2% SL; pelvic-fin insertion to anal-fin origin 19.1-24.2% SL (Ref. 123974).

Ease of Identification

Meristic characteristics of Thrissina whiteheadi

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales
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
Fins number
Finlets No. Dorsal   
Ventral  
Spines total
Soft-rays total
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number
Spines total
Soft-rays total

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   
Pelvics Attributes  
Position    
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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cfm script by eagbayani, 17.10.00, php script by rolavides, 13/03/08 ,  last modified by sortiz, 06.27.17