Morphology Data of Pelvicachromis roloffi
Identification keys
Abnormalities
Main Ref. Teugels, G.G. and D.F.E. Thys van den Audenaerde, 2003
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
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

Diagnosis: body depth 37.1-40.5% of standard length; dorsal fin with several dark spots, the last 3 ones larger and darker than the others; caudal fin with a black spot at base (Ref. 53405).

Description: relatively deep-bodied, with rounded head and rounded caudal fin (Ref. 52307). Teeth conical, outer teeth in a single row, inner teeth in 3 rows; gill rakers lanceolate and short; no micro-gillrakers; snout rounded; mouth small; pharyngeal jaw teeth bicuspid; scales cycloid; pelvic fins pointed in males, rounded in females; caudal fin rounded or slightly asymmetric in males (Ref. 53405).

Coloration: in live: males: ground colouration bright violet, belly whitish, back greyish-brown; broad longitudinal band running from snout to caudal-fin base, not always distinct; pectoral and pelvic fins transparent, pelvics dark anteriorly; dorsal, anal and caudal fins yellowish-brown; anal fin dark-edged; series of dark spots on dorsal fin, last 3 ones larger and darker than others; caudal fin covered with dark spots (Ref. 53405). Body scales with dark margins (Ref. 52307). Females: general colouration violet, lower part of body more brightly coloured than upper part; area below eye yellowish; pectoral fins transparent (Ref. 53405). Pelvics deep black (Ref. 53405) or dark violet (Ref. 52307). Dorsal, anal and caudal fins golden red; dorsal fin with series of dark spots as in males, caudal fin dark-spotted; rarely with longitudinal band on sides (Ref. 53405). Silvery iridescent zone anterior of red belly often visible (Ref. 52307).

Ease of Identification

Meristic characteristics of Pelvicachromis roloffi

Lateral Lines 2 Interrupted: No
Scales on lateral line 27 - 28
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 9 - 10
on upper limb
total
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes
Fins number 1
Finlets No. Dorsal   0
Ventral  0
Spines total 16 - 17
Soft-rays total 9
Adipose fin absent

Caudal fin

Attributes

Anal fin(s)

Fins number 1
Spines total 3 - 3
Soft-rays total 7

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   
Pelvics Attributes  
Position    
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Comments & Corrections
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