Morphology Summary - Pyrolycus jaco
Morphology Data of Pyrolycus jaco
Identification keys
Abnormalities
Main Ref. Frable, B.W., C.A. Seid, A.W. Bronson and P.R. Møller, 2023
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  (shape guide) eel-like
Cross section circular
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

This species is distinguished from its congeners by the following set of characters: five suborbital bones with 5 pores, occipital pores 2, postorbital pores 3; vertebrae 23 + ~57 = ~80, presence of vomerine 7-8 and palatine teeth 12-15; total gill rakers 2-3+13-15= 16-17, pectoral fin rays 14-15, upper jaw short 33.9-42.4% HLl; snout short 21.3-24.3% HL; precaudal vertebrae 22-23; postorbital pores 3; pectoral-fin rays 4-15 ; occipital pores (1-0-1); eye diameter 12.1-14.9; gill slit 26.9-34.7 (Ref. 137812).

Ease of Identification

Meristic characteristics of Pyrolycus jaco

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 80 - 80

Fins

Dorsal fin(s)

Attributes
Fins number 1
Finlets No. Dorsal   
Ventral  
Spines total
Soft-rays total 37 - 57
Adipose fin absent

Caudal fin  (shape guide)

Attributes

Anal fin(s)

Fins number 1
Spines total
Soft-rays total 22 - 43

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   14 - 15
Pelvics Attributes  
Position    
Spines     
Soft-rays   2 - 2
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