Morphology Data of Distichodus petersii
Identification keys
Abnormalities
Main Ref. Eccles, D.H., 1992
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

Description: Depth of body 2.16-2.50 times in total length; length of head 3.66 times in total length (Ref. 1878). Caudal peduncle much deeper than long (Ref. 1878). Head a little longer than deep, twice as long as broad; snout rounded, not compressed, projecting little beyond mouth, as long as eye, which is 3.5 times in length of head and about 1.5 times in interorbital width; maxillary extending to below nostrils; teeth in 2 series in each jaw, outer series containing 22-24 teeth (Ref. 1878). Dorsal fin with 22 rays, including 4-5 unbranched rays, equally distant from occiput and from caudal, its base 2.5 times its distance from adipose fin; anal fin with 16 rays, including 3-4 unbranched rays; pectoral fin 2/3 length of head; caudal forked, lobes obtusely pointed (Ref. 1878). Scales in lateral series 68-75, 13-14 scales between lateral line and root of pelvic fin (Ref. 1878).

Colouration: Silvery, back darker (Ref. 1878). Large black shoulder spot, on the lateral line above the pectoral fin; dorsal fin spotted (Ref. 1878, 4967).

Ease of Identification

Meristic characteristics of Distichodus petersii

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales
Scales in lateral series 68 - 75
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
on upper limb
total
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   
Ventral  
Spines total 0 - 0
Soft-rays total 22 - 22
Adipose fin present

Caudal fin

Attributes forked; more or less normal

Anal fin(s)

Fins number 1
Spines total 0 - 0
Soft-rays total 16 - 16

Paired fins

Pectoral Attributes  more or less normal
Spines     
Soft-rays   
Pelvics Attributes  more or less normal
Position    abdominal
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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