Morphology Summary - Hoplisoma rikbaktsa
Morphology Data of Hoplisoma rikbaktsa
Identification keys
Abnormalities
Main Ref. Lima, F.C.T. and M.R. Britto, 2020
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks Males with slightly elongated, lanceolated urogenital papilla, as other Corydoradinae; with well-developed, numerous odontodes over lateral portions of head, pectoral girdle, and pectoral spines, especially developed at cheeks and opercle, while all females only possess small, scattered odontodes over lateral portions of head and pectoral girdle; head profile of males somewhat more rounded than overall pointed head profile of females (Ref. 138446).

Descriptive characteristics of juvenile and adult

Striking features
Body shape lateral  (shape guide) fusiform / normal
Cross section angular
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

This species is distinguished by the following characters: with a distinct broad vertical bar on head, at the level of the eye (mask) and an overall light background color, without large blotches or stripes on body or fins; with two to four blotches along the midline, and a broad vertical bar on head narrower at the level of the eye and extending over the entire opercle; posterior margin of pectoral-fin spine with serrations directed towards the tip of the spine (Ref. 138446).

Ease of Identification

Meristic characteristics of Hoplisoma rikbaktsa

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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