Morphology Data of Parakneria thysi
Identification keys
Abnormalities
Main Ref. Poll, M., 1965
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 circular
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth sub-terminal/inferior
Type of scales
Diagnosis

Diagnosis: body depth 6.4-7.1 times in SL; head length 3.8-4.3 times in SL; snout rounded, its length 2.5-2.9 times in HL; eye superolateral, its diameter 5.1-5.5 times in HL, 1.4-1.7 times in interorbital distance, 1.8-2.1 times in snout length; dorsal fin origin about 1.1 times further from snout tip than from caudal fin origin; anal fin origin 1.4-1.6 times further from pelvic fin origin than from caudal fin origin; pectoral fin large, its length 4.9-5.4 times in SL, 0.7-0.9 times length of head; pelvic fin 6.4-7.1 times in SL, 1.5-1.7 times in HL; caudal peduncle 1.7-1.9 times as long as deep (Ref. 89136).

Description: mouth inferior; lower lip absent, but cutting edge present on lower jaw; scales very small; caudal fin with 19 soft rays, deeply forked, its lower lobe a little longer than the upper (Ref. 89136). Details on the morphology/anatomy of the gills, intestines and swim bladder can be found in Ref. 89077, details on the morphology/anatomy of skull, branchial skeleton, axial skeleton, dorsal and anal fin skeleton, and pectoral and pelvic girdles can be found in Ref. 89082.

Coloration: ground color yellowish; mediolateral band made up of about a dozen large, oval spots, dorsally more or less alternating with smaller spots and a series of mediodorsal spots; head dark ventrally; fins greyish, caudal fin with 3 bands on each lobe (Ref. 89136).

Ease of Identification

Meristic characteristics of Parakneria thysi

Lateral Lines 1 Interrupted: No
Scales on lateral line 84 - 94
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 110
Vertebrae
preanal
total 39

Fins

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 - 19
Pelvics Attributes  more or less normal
Position    abdominal  beneath origin of D1
Spines     0
Soft-rays   9
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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