Morphology Data of Psilorhynchus olliei
Identification keys
Abnormalities
Main Ref. Conway, K.W. and R. Britz, 2015
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 elongated
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth sub-terminal/inferior
Type of scales cycloid scales
Diagnosis

Psilorhynchus olliei belongs to the P. balitora species group and is distinguished from all other members by the following combination of characters: 5-6 round to squarish lateral blotches; 6-7 dorsal saddles, all but largest separated from lateral blotches; small dark brown blotches scattered irregularly across scales in L1, L+1 and L+2 scale rows in posterior half of body; obvious row of small dark brown blotches in L-1 row, bordering ventral margin of lateral blotches in posterior half of body; caudal fin with elongate black marking extending along ventral margin of lower lobe; dorsal fin with black stripe across center that is widest anteriorly; 31-32 lateral-line scales; 10 + 9 principal caudal-fin rays; v.9-10.i-ii pectoral-fin rays; 32-33 (16-17+16-17) total vertebrae; anteriormost branchiostegal ray present; parietal portion of temporal sensory canal with 3 openings; preopercular portion of preopercular-mandibular canal with 4 openings; ventral surface between paired fins without scales (Ref. 103424).

Description: Dorsal-fin rays iii.9; anal-fin rays ii.5.i or ii.6; pectoral-fin rays v.9.ii or v.10.i; pelvic-fin rays ii.7 or ii.6.i (Ref. 103424).

Ease of Identification

Meristic characteristics of Psilorhynchus olliei

Lateral Lines Interrupted: No
Scales on lateral line 31 - 32
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle 10 - 11
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total
Vertebrae
preanal
total 32 - 33

Fins

Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   
Ventral  
Spines total
Soft-rays total 13 - 13
Adipose fin absent

Caudal fin

Attributes forked

Anal fin(s)

Fins number
Spines total
Soft-rays total 8 - 8

Paired fins

Pectoral Attributes  more or less normal
Spines     
Soft-rays   16 - 16
Pelvics Attributes  more or less normal
Position    abdominal  behind origin of D1
Spines     
Soft-rays   9 - 9
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Torres, Armi G.
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