Morphology Data of Amphilius atesuensis
Identification keys
Main Ref. Skelton, P.H., L.M. Risch and D. Paugy, 2003
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors

Descriptive characteristics of juvenile and adult

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

Diagnosis: head short; eyes in dorsal position, at about midpoint of head length; barbels long and slender, extending beyond hind margin of head; branchiostegal membrane deeply notched; predorsal distance (=distance from head to dorsal fin) over 20% of standard length; dorsal-fin base above, or slightly ahead of pelvic-fin insertions; fins rounded, their principal simple ray shorter than the adjacent branched rays; a long urogenital papilla in males, its length over 5% of standard length; caudal peduncle short and deep; caudal fin slightly forked (Ref. 57128).

Description: 6+7 principal caudal fin rays (Ref. 57128)

Coloration: characteristic colour pattern of large brown or black blotches and 4-5 paler cross-bars on back; lower sides mottled, belly light; black cross-bar on distal half of dorsal-fin rays; other fins clear; tips of caudal-fin lobes black; black band before eyes, not always visible (Ref. 57127).

Ease of Identification

Meristic characteristics of Amphilius atesuensis

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 6
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 5 - 8
on upper limb 2 - 3


Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   0
Ventral  0
Spines total 0
Soft-rays total 7
Adipose fin present

Caudal fin

Attributes forked; more or less normal

Anal fin(s)

Fins number 1
Spines total 0
Soft-rays total 7 - 9

Paired fins

Pectoral Attributes  more or less normal
Spines     0
Soft-rays   8 - 9
Pelvics Attributes  more or less normal
Position    abdominal
Spines     0
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Musschoot, Tobias
Modified by Musschoot, Tobias
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