Morphology Data of Paramphilius trichomycteroides
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
Remarks Males have a bigger (more swollen) head than females (Ref. 57128).

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: body elongate and cylindrical, its depth comprised 6 or 7 times in standard length; head short and deep, its length over 5 times in standard length; dorsal-fin origin usually more or less above pelvic-fin insertions; caudal peduncle length 1.5-2 times its depth; anal fin with 7 or more branched rays; caudal fin with 7 + 8 principal rays (Ref. 57128).

Description: eyes very small and wide-spaced, positioned relatively far forwards on head; mouth broad and terminal, lips moderately fleshy; barbels long and filamentous, usually reaching to pectoral-fin bases; branchiostegal membrane divided by a deep ventral notch; postorbital part of head soft and fleshy, the lower-jaw muscles running before and behind eyes to their insertion points on top of head; these muscles become broader and swollen in mature males; dorsal, pectoral and pelvic fins short and rounded, their anterior simple ray short and flexible; anal fin rather long, with 8-10 branched rays; adipose fin long, low and confluent with caudal fin; lateral line interrupted (Ref. 57128).

Coloration: upper parts of body uniformly dark brown, with lighter areas on belly; eyes appearing as 2 small black spots (Ref. 57128).

Ease of Identification

Meristic characteristics of Paramphilius trichomycteroides

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 2 - 4
on upper limb 1


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 more or less truncate; more or less normal

Anal fin(s)

Fins number 1
Spines total 0
Soft-rays total 9 - 13

Paired fins

Pectoral Attributes  more or less normal
Spines     0
Soft-rays   7 - 8
Pelvics Attributes  more or less normal
Position    abdominal  behind origin of D1
Spines     0
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Musschoot, Tobias
Modified by Musschoot, Tobias
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