Morphology Summary - Bryconaethiops quinquesquamae
Morphology Data of Bryconaethiops quinquesquamae
Identification keys
Abnormalities
Main Ref. Paugy, D. and S.A. Schaefer, 2007
Appearance refers to Male; Female
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  (shape guide) fusiform / normal
Cross section
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 cycloid scales
Diagnosis

Diagnosis: upper-jaw teeth in 2 or 3 rows; premaxillary teeth triserial (Ref. 271, 81279). 5.5 scales in transverse row between lateral line and dorsal fin origin; 10 scales around caudal peduncle (Ref. 74421, 80290, 81279); 33-36 (Ref. 80290), 33-34 (Ref. 81279) or 35-39 (Ref. 74421) lateral line scales. Eye diameter/head length 30-35% (Ref. 80290) or 37.6-42.8 (Ref. 74421). 17-19 anal fin branched rays (Ref. 74421, 80290).

Description: 14-16 (Ref. 271) or 13-15 (Ref. 74421) gill rakers on the first ceratobranchial; 11-14 (Ref. 271) or 12-14 (Ref. 74421) on the epibranchial. Total number of gill rakers on first gill arch 15-20 (Ref. 80290, 81279) or 26-30 (Ref. 74421). Dorsal fin with 2 unbranched and 8 (Ref. 74421) or 7-9 (Ref. 271) branched rays. Anal fin with 2-3 (Ref. 271) or 3 (Ref. 74421) unbranched rays. Pectoral fins with 12-13 soft rays; pelvic fin with 8-9 soft rays; 34-37 vertebrae; 5 supraneurals between the rear of the neurocranium and the anteriormost proximal radial pterygiophore (Ref. 271).

Coloration: overall live coloration is pale with no strong markings or bright colors; upper half of body is pale tan, the lower half white; very pale pink areas in the central portions of the dorsal fin, the distal part of the anal fin and the upper lobe of the caudal fin; a very small pink dot on the anterior base of the adipose fin (Ref. 271). A silvery lateral stripe (black in preserved animals) extends from gill cover to base of caudal fin (Ref. 80290, 81279).

Ease of Identification

Meristic characteristics of Bryconaethiops quinquesquamae

Lateral Lines 1 Interrupted: No
Scales on lateral line 33 - 39
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line 5.5 - 5.5
Scale rows below lateral line 3.5 - 3.5
Scales around caudal peduncle 10 - 10
Barbels 0
Gill clefts (sharks/rays only) absent
Gill rakers
on lower limb 13 - 16
on upper limb 11 - 14
total 15 - 30
Vertebrae
preanal 14 - 16
total 34 - 37

Fins

Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   
Ventral  
Spines total 0 - 0
Soft-rays total 9 - 11
Adipose fin present

Caudal fin  (shape guide)

Attributes forked; more or less normal

Anal fin(s)

Fins number 1
Spines total 0 - 0
Soft-rays total 19 - 22

Paired fins

Pectoral Attributes  more or less normal
Spines     1
Soft-rays   12 - 13
Pelvics Attributes  more or less normal
Position    abdominal  behind origin of D1
Spines     1
Soft-rays   8 - 9
(e.g. 9948)
(e.g. oophagy)
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