Morphology Data of Hypostomus nigropunctatus
Identification keys
Abnormalities
Main Ref. Garavello, J.C., H.A. Britski and C.H. Zawadzki, 2012
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

Distinguished from members of Hypostomus cochliodon group, except H.

hemicochliodon, by having bifid non spoon-shaped teeth and with the lateral cups not fused to the mesial one (vs. spoon-shaped teeth with lateral cups usually fused to the mesial one). Differs from other congeners by the combination of the following characters: dark spots over body and fins; absence of keels on pterotic-supracleitrhum, pre-dorsal plates and on lateral series of plates; deeper body and a pair of parallel moderate keels on predorsal plates; . abdomen completely plated; presence of small-sized and close-settled dark spots (equal to smaller than eye pupil) on dorsal region of head, trunk, and fins; and presence of three pre-dorsal plates bordering supraoccipital (Ref. 91066).

Ease of Identification

Meristic characteristics of Hypostomus nigropunctatus

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
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
Finlets No. Dorsal   
Ventral  
Spines total 2 - 2
Soft-rays total 7 - 7
Adipose fin present

Caudal fin

Attributes forked

Anal fin(s)

Fins number
Spines total
Soft-rays total 6 - 6

Paired fins

Pectoral Attributes  
Spines     1
Soft-rays   6 - 6
Pelvics Attributes  
Position    abdominal  behind origin of D1
Spines     
Soft-rays   6 - 6
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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