Morphology Data of Synodontis comoensis
Identification keys
Abnormalities
Main Ref. Paugy, D. and T.R. Roberts, 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 fusiform / normal
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

Diagnosis: gill slits not extending ventrally beyond pectoral-fin insertions; post-orbital length at least 60% of snout length; maxillary barbels unbranched, longer than head, without tubercles and bordered by a dark basal membrane; outer mandibular barbels with long and simple ramifications; branches of inner mandibular barbels shorter, thicker and tuberculate; mandibular teeth slender and short, numbering 56-70 (63 in the holotype); denticulations of pectoral-fin spines stronger on inner than on outer margin; dorsal-fin spine long and smooth anteriorly; first branched dorsal-fin ray prolonged into a black filament that may be rather long; humeral process triangular and narrow, ending in a blunt point, not keeled ventrally; adipose fin moderately developed, rounded posteriorly and distinctly separated from rayed dorsal fin; eyes large (Ref. 57223).

Coloration: body more or less uniformly greyish, often finely speckled on back, sides and adipose fin, this pattern being much more distinct in pale specimens (Ref. 57223).

Ease of Identification

Meristic characteristics of Synodontis comoensis

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle
Barbels 6
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 16 - 18
on upper limb 3 - 4
total
Vertebrae
preanal
total

Fins

Dorsal fin(s)

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

Caudal fin

Attributes forked; more or less normal

Anal fin(s)

Fins number 1
Spines total 0
Soft-rays total

Paired fins

Pectoral Attributes  more or less normal
Spines     1
Soft-rays   
Pelvics Attributes  more or less normal
Position    abdominal  behind origin of D1
Spines     0
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Musschoot, Tobias
Modified by Musschoot, Tobias
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