Morphology Data of Parakneria marmorata
Identification keys
Main Ref. Poll, M., 1965
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors

Descriptive characteristics of juvenile and adult

Striking features
Body shape lateral elongated
Cross section circular
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth sub-terminal/inferior
Type of scales

Diagnosis: body depth 8.25 times in SL; head length 5.8 times in SL; snout rounded, 1.1 times longer than postorbital distance, 2.3 times in HL; eye superolateral, 6.45 times in HL, 2.2 times in interorbital width, 2.7 times in snout length; interorbital distance 2.9 times in HL; dorsal fin origin about equidistant from end of snout and base of caudal; anal fin base 1.95 times further from pelvic fin base than from caudal fin base; pectoral fin length 6 times in SL, slightly shorter than head length; pelvic fins 6.75 times in SL, 1.15 times in HL; caudal peduncle 1.8 times longer than deep (Ref. 89136).

Description: mouth inferior; lower lip absent, but cutting edge present on lower jaw; caudal fin with 19 soft rays, deeply forked, its lower lobe slightly longer than the upper (Ref. 89136).

Coloration: ground color yellowish-whitish, paler below, with brownish spots and marbling on flanks, dorsal body parts and head; transversal bands on all fins, especially the caudal, which has 4 bands on the upper and 5 on the lower lobe (Ref. 89136).

Remark: despite some remarkable differences with the original description by Norman 1923 (=Ref. 89231) we follow above the (more elaborate) description given by Poll 1965 (=Ref. 89136); the latter publication also includes descriptions of the other Parakneria species known up 1965.

Ease of Identification

Meristic characteristics of Parakneria marmorata

Lateral Lines 1 Interrupted: No
Scales on lateral line 121
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb


Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   0
Ventral  0
Spines total 0
Soft-rays total 11
Adipose fin absent

Caudal fin

Attributes forked; more or less normal

Anal fin(s)

Fins number 1
Spines total 0
Soft-rays total 9

Paired fins

Pectoral Attributes  more or less normal
Spines     0
Soft-rays   18
Pelvics Attributes  more or less normal
Position    abdominal
Spines     0
Soft-rays   9
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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