Morphology Data of Rubricatochromis exsul
Identification keys
Abnormalities
Main Ref. Trewavas, E., 1933
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 fusiform / normal
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

Description: upper profile of snout straight; mouth with somewhat oblique cleft; jaws equal in front, or lower slightly projecting; maxillary ending below anterior edge of eye; teeth in a single series, or a few inner teeth in upper jaw; 4 series of scales on cheek; lower pharyngeal jaw with few bicuspid teeth, the middle somewhat enlarged; 4-5 scales between pectoral and pelvic fins; pectoral fin ending above vent or in front of it; caudal fin rounded (Ref. 55985).

Coloration: body bright red (Ref. 52307) or silvery (Ref. 55985), with dark band along the back, another on lower lateral line, and an indefinite patch below upper lateral line (Ref. 55985). An opercular spot, and a faint bar below eye; a few light spots on upper part of caudal fin and on soft dorsal fin (Ref. 55985). Vertical fins with (broad) dark (black) edges (Ref. 52307, 55985). Outer parts of pelvic fins dusky; smaller fishes sometimes much darker in general colouring, with a clear edge to the dorsal fin (Ref. 55985). Iridiophores present on dorsal fin and most distal parts of caudal fin, but none on head or body (Ref. 52307).

Ease of Identification

Meristic characteristics of Rubricatochromis exsul

Lateral Lines Interrupted: No
Scales on lateral line 26 - 27
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line 4 - 4
Scale rows below lateral line
Scales around caudal peduncle
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 5 - 7
on upper limb
total
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes
Fins number 1
Finlets No. Dorsal   0 - 0
Ventral  0 - 0
Spines total 14 - 15
Soft-rays total 10 - 11
Adipose fin absent

Caudal fin

Attributes

Anal fin(s)

Fins number 1
Spines total 3 - 4
Soft-rays total 8 - 9

Paired fins

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