Morphology Data of Amblyotrypauchen arctocephalus
Identification keys
Abnormalities
Main Ref. Prokofiev, A.M., 2015
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
Cross section circular
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: D VI,42-43, A 40-42, P 15-18, vert. 10 + 19; both on premaxillae and dentals, three fangs (unpaired, middle, and paired lateral) in symphysis and one or two lateral fangs on both sides; small conical teeth in row near symphysis and in two rows posteriorly; sagittal crest of skull moderately developed and smooth; presence of suprabranchial pouch; dorsal pterygiophore formula DF 3 1221, no interneural vacant gap between pterygiophores of spined and soft parts of D; three pterygiophores ? before first hemapophysis; pleural ribs from third centrum; whole body including predorsal area and belly with scales, also present in patches on sides of head, but absent on breast and P base; P asymmetrical; V partly separated from each other and connected by a membrane only in main halves of their lengths (Ref. 129446).

Ease of Identification

Meristic characteristics of Amblyotrypauchen arctocephalus

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 10 - 10
total 29 - 29

Fins

Dorsal fin(s)

Attributes
Fins number 1
Finlets No. Dorsal   
Ventral  
Spines total 6 - 6
Soft-rays total 42 - 43
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number 1
Spines total 0 - 0
Soft-rays total 40 - 42

Paired fins

Pectoral Attributes  
Spines     0
Soft-rays   15 - 18
Pelvics Attributes  
Position    
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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