Morphology Data of Praealticus bilineatus
Identification keys
Abnormalities
Main Ref. Allen, G.R. and M.V. Erdmann, 2012
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 elongated
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

Head and body greyish brown with small white spots; median fin with white dots. Dorsal fin deeply notched; segmented caudal rays usually 13-14, branched middle 6-9; pinnately branched supraorbital tentacle; lacking nape cirri; posterior rim of anterior nostril with small cirrus, typically unbranched; upper and lower lip margins smooth; with occipital crest (higher in males); last dorsal ray and caudal peduncle connected by membrane; elongate body, depth at anal-fin origin ca. 7.7-7.9 in SL. Maximum size to 9 cm TL (Ref. 90102).

Ease of Identification

Meristic characteristics of Praealticus bilineatus

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 extending over most of the back length
Fins number 1notched No
Finlets No. Dorsal   
Ventral  
Spines total 13 - 13
Soft-rays total 18 - 20
Adipose fin

Caudal fin

Attributes more or less truncate; more or less normal

Anal fin(s)

Fins number 1
Spines total 2 - 2
Soft-rays total 18 - 21

Paired fins

Pectoral Attributes  more or less normal
Spines     
Soft-rays   15 - 15
Pelvics Attributes  more or less normal
Position    jugular
Spines     1
Soft-rays   3 - 3
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