Morphology Summary - Pareiorhina isabelae
Morphology Data of Pareiorhina isabelae
Identification keys
Abnormalities
Main Ref. Uzeda, P.L.C., L.J. Sartori, A.M. Katz, F.P. Ottoni, W.J.E.M. Costa, F. Langeani and V.M. Azevedo-Santos, 2026
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  (shape guide) elongated
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

This species is distinguished from its congeners by the following set of characters: presence of a postdorsal ridge; postdorsal ridge plates (11-16, modally 12 vs. 8-11, modally 9); absence of keels on dorsal and mid-dorsal series of plates; dorsal profile of the head rounded; premaxillary (47-73); unicuspid teeth; dentary (42-78); snout profile rounded, snout tip naked; single fenestra on the anterior portion of pelvic girdle; vertebrae (31 vs. 29); absence of a cluster of abdominal platelets between the pelvic fins; tip of pectoral-fin spine reaching the second third of dorsal-fin base when adpressed; absence of dark spots over dorsal and lateral surfaces of head, body and fins; posterior margin of lower lip fringed; and five infraorbitals (Ref. 138661).

Ease of Identification

Meristic characteristics of Pareiorhina isabelae

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
Fins number
Finlets No. Dorsal   
Ventral  
Spines total
Soft-rays total
Adipose fin

Caudal fin  (shape guide)

Attributes

Anal fin(s)

Fins number
Spines total
Soft-rays total

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   
Pelvics Attributes  
Position    
Spines     
Soft-rays   
(e.g. 9948)
(e.g. oophagy)
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