Morphology Data of Apionichthys rosai
Identification keys
Abnormalities
Main Ref. Ramos, R.T.C., 2003
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 short and / or deep
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

Lacks a gill opening on the eyed side; having 2 or 3 series of scales with rounded posterior margin and larger than other trunk scales along dorsal, anal and pelvic fin bases on the eyed side. Similar to Apionichthys asphyxiatus in the absence of a gill opening on the eyed side, but differs in its larger interorbital space that is 2 to 4 times the orbital diameter (vs. interorbital space half the orbital diameter).

Ease of Identification

Meristic characteristics of Apionichthys rosai

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales
Scales in lateral series 64 - 70
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 7 - 8
total 35 - 36

Fins

Dorsal fin(s)

Attributes
Fins number 1
Finlets No. Dorsal   
Ventral  
Spines total
Soft-rays total 44 - 56
Adipose fin absent

Caudal fin

Attributes more or less truncate

Anal fin(s)

Fins number
Spines total
Soft-rays total 46 - 49

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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