Morphology Data of Silhouettea sibayi
Identification keys
Abnormalities
Main Ref. Hoese, D.F., 1986
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: Body slender, elongate; head depressed (Ref. 52193). Dorsal fin with 7 spines and 11 soft rays; anal fin with 1 spine and 13 soft rays; first dorsal fin of males tall and pointed; caudal rounded (Ref. 52193). Scales in lateral series 24-25; no scales on head and chest (Ref. 52193).

Colouration: Body pale and translucent with red and brown flecks; oblique rows of small black spots on body; anterior portion of 1st dorsal fin dusky; pelvic and anal fin margins normally black (Ref. 2798, 52193). First dorsal fin of males sooty, with white vertical stripe (Ref. 52193).

Ease of Identification

Meristic characteristics of Silhouettea sibayi

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales
Scales in lateral series 24 - 25
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 - 9
on upper limb 3 - 3
total 12 - 12
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes no striking attributes
Fins number 2
Finlets No. Dorsal   
Ventral  
Spines total 7 - 7
Soft-rays total 11 - 11
Adipose fin absent

Caudal fin

Attributes more or less truncate; more or less normal

Anal fin(s)

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

Paired fins

Pectoral Attributes  more or less normal
Spines     0
Soft-rays   14 - 15
Pelvics Attributes  
Position    thoracic  before origin of D1
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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