Morphology Data of Trichomycterus jequitinhonhae
Identification keys
Abnormalities
Main Ref. Triques, M.L. and V. Vono, 2004
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 more or less straight
Type of eyes
Type of mouth/snout
Position of mouth sub-terminal/inferior
Type of scales
Diagnosis

A series of large gray and nearly circular large spots latero-dorsally on body, some of which may be nearly fused to form long marks; a series of nearly circular large spots laterally on flank, some may be fused to form long marks, slightly smaller than the latero-dorsal circular large spots; these two series of large spots may be aligned one under the other or alternate one another; scattered, irregularly shaped and slightly smaller spots ventro-laterally on body; a series of mid-dorsal large spots on body, absent in large specimens; pelvic fin origin equidistant from base of middle caudal fin rays and a vertical between posterior margin of opercle (in juveniles, about 2.4 cm TL) and the posterior margin of pectoral fin or even slightly backward (in specimens about 8.3 cm TL); distance from dorsal fin origin to base of middle caudal fin rays 1.7-1.9 in predorsal distance and absence of spots on opercular region in intermediate and large size specimens; anus under anterior part of dorsal fin base (Ref. 52473).

Ease of Identification

Meristic characteristics of Trichomycterus jequitinhonhae

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
Fins number 1
Finlets No. Dorsal   
Ventral  
Spines total 0 - 0
Soft-rays total 8 - 10
Adipose fin absent

Caudal fin

Attributes more or less truncate

Anal fin(s)

Fins number
Spines total 0 - 0
Soft-rays total 5 - 8

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   8 - 8
Pelvics Attributes  
Position    
Spines     
Soft-rays   5 - 5
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Comments & Corrections
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