Morphology Data of Ctenopoma houyi
Identification keys
Main Ref. Norris, S.M., 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 fusiform / normal
Cross section
Dorsal head profile
Type of eyes more or less normal
Type of mouth/snout more or less normal
Position of mouth terminal
Type of scales

Diagnosis: snout blunt; jaws weakly protrusible (ascending process of premaxilla short, not reaching anterior border of orbit); pelvic fins unpigmented or very lightly pigmented; labyrinth composed of a more complex, folded plate; 10-18 (rarely 17 or higher) pored scales in upper lateral line; species never larger than 75 mm SL; body depth into SL usually 3 times or more; spot at base of caudal fin often with a pale ring surrounding it even in adults; lachrymal occasionally finely serrated; frequently faint mottling on flanks; 15-16 (rarely 17) spines and 7-10 soft rays in dorsal fin; 9-10 (rarely 11) spines and 8-11 soft rays in anal fin (Ref. 57414).

Description: body elongate and oval, with an angular snout; lachrymal often finely serrated; 1 cephalic pore in interocular space; 24-27 scales in lateral series; 11-15 scales in upper lateral line; 9-14 scales in lower lateral line; 2.5-4 scales above upper lateral line; 7.5-10 scales below upper lateral line; operculum and suboperculum serrated; interoperculum sometimes serrated; preoperculum unserrated; 16 caudal fin soft rays; D XV-XVI,7-10; A IX-XI,8-11; 25-26 total vertebrae (Ref. 57414).

Ease of Identification

Meristic characteristics of Ctenopoma houyi

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales
Scales in lateral series 24 - 27
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle
Barbels 0
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total 25 - 26


Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   0
Ventral  0
Spines total 15 - 17
Soft-rays total 7 - 10
Adipose fin absent

Caudal fin

Attributes more or less truncate; more or less normal

Anal fin(s)

Fins number 1
Spines total 9 - 11
Soft-rays total 7 - 10

Paired fins

Pectoral Attributes  more or less normal
Pelvics Attributes  more or less normal
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Boden, Gert
Modified by Musschoot, Tobias
Checked by Capuli, Estelita Emily
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