Morphology Data of Leptachirus polylepis
Identification keys
Abnormalities
Main Ref. Randall, J.E., 2007
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 short and / or deep
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

This species is distinguished by the following characters: D 70-77; A 54-58; pelvic rays 4 or 5 (usually 4); lateral-line scales 103-111; lateral line on ocular side of head with a ventral branch of 5 to 6 pores, remaining horizontal anterior part with 3-4 pores; vertebrae 40-42; dorsal pterygiophores anterior to fourth neural spine 8-9 (usually 9); body depth 2.95-3.2 in SL; no caudal peduncle; head length 4.45-4.65 in SL; eye diameter 6.35-6.8 in HL; interorbital width 8.6-10.5 in HL; tubular anterior nostril short, only slightly longer than diameter of base, and tapering little; longest dorsal ray 1.8-2.15 in HL; caudal-fin length 4.15-4.7 in SL; pelvic fins and genital papilla not joined, their origins adjacent; pelvic fins short, reaching little beyond base of first anal ray, 2.7-3.1 in HL; colour in alcohol of ocular side brown, faintly mottled with small darker brown spots; with 3 longitudinal rows of dark brown spots, most vertically elongate, the largest two on lateral line; dorsal and anal fins with dark brown streaks on 2-4 adjacent rays; caudal fin with dark brown blotches on base (ref. 84817).

Ease of Identification

Meristic characteristics of Leptachirus polylepis

Lateral Lines Interrupted: No
Scales on lateral line 103 - 111
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 40 - 42

Fins

Dorsal fin(s)

Attributes
Fins number
Finlets No. Dorsal   
Ventral  
Spines total
Soft-rays total 70 - 77
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number
Spines total
Soft-rays total 54 - 58

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   
Pelvics Attributes  
Position    
Spines     
Soft-rays   4 - 5
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