Morphology Data of Nannocharax ocellicauda
Identification keys
Abnormalities
Main Ref. Vari, R.P., 2007
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs no special organs
Different appearance
Different colors
Remarks

Descriptive characteristics of juvenile and adult

Striking features none
Body shape lateral elongated
Cross section compressed
Dorsal head profile more or less straight
Type of eyes more or less normal
Type of mouth/snout more or less normal
Position of mouth terminal
Type of scales
Diagnosis

Diagnosis: body elongate; only 1 row of teeth in each jaw; only anterior portion of lateral line pored (Ref. 81638).

Description: body depth 0.19-0.21 SL, slightly laterally compressed; mouth terminal with 1 row of bicuspid teeth in each jaw; maxilla edentulous, premaxilla and dentary each with 6 outer row teeth; tip of pelvic fin reaching ¾ of distance to vent; caudal fin lobes pointed and without scale covering; body scales ctenoid and moderately sized; lateral line with pores only on anterior 5-6 scales even in largest examined individuals; 46-48 scales in longitudinal series (including pored scales); D: II-III,10-11; A: II-III,10-12 (Ref. 81638).

Coloration: preserved specimens yellow to light brown; dark chromatophores on dorsal portion of head, lateral surfaces of snout, lateral surface of lower lip and mid-portion of opercle; large, dark spot on lateral surface of posterior portion of caudal peduncle and mid-basal portions of the caudal rays; largest specimen with irregular band of dark chromatophores that extends from supraleithrum to dark spot beginning on rear of caudal peduncle (Ref. 81638).

Ease of Identification

Meristic characteristics of Nannocharax ocellicauda

Lateral Lines 1 Interrupted: No
Scales on lateral line 46 - 48
Pored lateral line scales 5 - 6
Scales in lateral series
Scale rows above lateral line 13 - 13
Scale rows below lateral line
Scales around caudal peduncle
Barbels 0
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   
Ventral  
Spines total 0 - 0
Soft-rays total 12 - 14
Adipose fin present

Caudal fin

Attributes forked; more or less normal

Anal fin(s)

Fins number 1
Spines total 0 - 0
Soft-rays total 12 - 15

Paired fins

Pectoral Attributes  more or less normal
Spines     
Soft-rays   
Pelvics Attributes  more or less normal
Position    abdominal  beneath origin of D1
Spines     
Soft-rays   8 - 9
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