Morphology Data of Symphurus leucochilus
Identification keys
Abnormalities
Main Ref. Lee, M.-Y. and T.A. Munroe, 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 flattened
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

This species is distinguished from all its congeners by the following set of characters: ID pattern1-2-2-2-2; caudal-fin rays 12; vertebrae, abdominal 9 (3 + 6), total 49–51; hypurals 9; D 89-92, A 76-80; longitudinal scale rows 75-83; transverse scale rows 32-35; scale rows on head posterior to lower orbit 15-17; relatively deep body (BD = 26.3-32.3% of HL); moderately long preanal length (PAL = 24.3-26.0% of SL); upper head lobe much larger than lower lobe; head moderately short (HL = 18.7-21.8% of SL), shorter than head width (HW/HL = 1.07-1.29); postorbital length short (POL = 65.6-69.5% of HL); snout long (SNL = 18.4-23.4% of HL; SNL/ED = 1.47-2.09), round to obliquely blunt anteriorly; dorsal-fin origin at point between verticals at anterior margin of upper eye and anterior margin of pupil of upper eye; predorsal length relatively long (PDL = 17.6–22.3% of HL); absence of fleshy ridge on ocular-side lower jaw; eyes separate, with anterior margin of upper usually equal to, or slightly in advance of, anterior margin of lower eye; anterior ocular-side nostril is not connected to eyes. Colouration: ocular-side pigmentation light-yellow to light-brown without melanophores; blind-side pigmentation uniformly white to light yellow; peritoneum bluish-black (Ref. 126065).

Ease of Identification

Meristic characteristics of Symphurus leucochilus

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 9 - 9
total 49 - 51

Fins

Dorsal fin(s)

Attributes
Fins number
Finlets No. Dorsal   
Ventral  
Spines total
Soft-rays total 89 - 92
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number
Spines total
Soft-rays total 76 - 80

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   
Pelvics Attributes  
Position    
Spines     
Soft-rays   
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