Morphology Data of Psednos delawarei
Identification keys
Abnormalities
Main Ref. Chernova, N.V. and D.L. Stein, 2002
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 terminal
Type of scales
Diagnosis

Skin uniformly gray, head beneath skin black. Coronal pore present. Skin pale, peritoneum blackish-brown, mouth and gill cavity pale. Coronal pore present. Mouth oblique at angle approximately 45° to horizontal. Gill rakers unmodified. Temporal and coronal pores very large, distinctly larger than other pores. Pectoral fin low, insertion strongly oblique, base almost horizontal, fin ray direction more ventral than posterior (Ref. 43481).

Ease of Identification

Meristic characteristics of Psednos delawarei

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 42 - 42

Fins

Dorsal fin(s)

Attributes
Fins number
Finlets No. Dorsal   
Ventral  
Spines total
Soft-rays total 36 - 36
Adipose fin

Caudal fin

Attributes more or less truncate

Anal fin(s)

Fins number
Spines total
Soft-rays total

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   
Pelvics Attributes  
Position    
Spines     
Soft-rays   
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