Morphology Data of Tenuicephalus squamilabrus
Identification keys
Abnormalities
Main Ref. Schwarzhans, W.W. and P.R. Møller, 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 charcters: precaudal vertebrae 15-16, loin vertebrae 2-4, last precaudal vertebrae without ribs; first gill arch with long gill rakers 17-21; pectoral-fin rays 16-18; HL:HD 1.37-1.55; maximal HD:HD through center of eye 1.75-1.90; weak head spines on ethmoidal and interorbital; opercular spine sharp and extruding; opercular flap small; scales on occiput, cheeks, opercle and maxilla; vomer narrow, naked or with few teeth or with one row of teeth; palatines narrow with 2-3 rows of teeth; basibranchial tooth patch small, narrow with 2 rows of teeth; otolith small, 5.0-6.5 % in HL, with single colliculum; OL:OH = 1.14-1.20; OL:TCL = 1.94-2.30 (Ref. 125143).

Ease of Identification

Meristic characteristics of Tenuicephalus squamilabrus

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 15 - 16
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   16 - 18
Pelvics Attributes  
Position    
Spines     
Soft-rays   
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