Morphology Data of Brochiraja vittacauda
Identification keys
Abnormalities
Main Ref. Last, P.R. and B. Séret, 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 other
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales placoid scales
Diagnosis

A large species of Brochiraja distinguished by the following combination of characters: long tail, 1.2–1.4 times disc length, 2.3–2.8 times ventral head length, 4.7–5.8 times snout length; orbit moderately large, 2.8–3.1 in preorbital snout length; tail slender but with relatively broad conical base, evenly tapering to mid-length of tail, width at pelvic-fin insertions 2.0–2.5 times width at midlength; anterior lobe of pelvic fin broadly spatulate; central dorsal disc with fine denticles, otherwise naked apart from enlarged, thorn-like denticles around margin of snout and near alar patch in adult males; tail with mediodorsal row of about 36–51 hooked thorns and small spiny denticles concentrated on its dorsolateral surface; single preorbital thorn, 0–1 midorbital thorns, 1–3 postorbital thorns; snout length 2.6–3.7 times distance from snout tip to bifurcate rostral thorn; calcified rostral shaft short; ventral disc and tail naked; alar thorns in a broad patch, flanked by smaller malar thorns; additional separate patch of malar thorns on snout forward of mid-eye; lateral skin fold very broad posteriorly, originating well forward, beside pelvic-fin inner margins in adult male; dorsal surface dark violet, ventral surface brownish blue, darker than dorsal surface; no beard-like patch beneath mouth; rows of faint pale-edged pores on ventral surface; tail tip white; nuchal pore patch distinct; total pectoral radials 76–77; predorsal vertebrae 112–114; 40–44 tooth rows in upper jaw (Ref. 89011).

Ease of Identification

Meristic characteristics of Brochiraja vittacauda

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

Attributes

Anal fin(s)

Fins number
Spines total
Soft-rays total

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   
Pelvics Attributes  
Position    
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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