Morphology Data of Alcockia rostrata
Identification keys
Abnormalities
Main Ref. Nielsen, J.G., D.M. Cohen, D.F. Markle and C.R. Robins, 1999
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
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

Elongated body with depressed head bearing sharp spines; eye diameter much shorter than snout; suborbital bones membranous; maxillary sheathed posterodorsally; opercular spine flat and weak; 7 developed rakers on anterior gill arch.

Ease of Identification

Meristic characteristics of Alcockia rostrata

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     0
Soft-rays   23 - 23
Pelvics Attributes  
Position    
Spines     0
Soft-rays   2 - 2
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