Morphology Data of Trichomycterus pirabitira
Identification keys
Abnormalities
Main Ref. Barbosa, M.A. and V.M. Azevedo-Santos, 2012
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
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

Distinguished by having the following combination of characters: opercular odontodes obliquely arranged); long pointed process on the posterodorsal tip of the hyomandibula; morphology of the metapterygoid narrow, without conspicuous process directed to the hyomandibula; caudal fin subtruncated; 7 - 8 branchiostegal rays; pelvic-fin origin in a vertical through the centrum of 18th or 19th vertebra; 37-38 vertebrae; 32-34 interopercular odontodes; narrow stripe along lateral midline; nasal barbel reaching middle of the pectoral-fin base; presence of the two anterior pores of infraorbital series; head length 18.7 - 20.8% SL; seven pectoral-fin rays; 14 -15 ribs; pelvic-fin insertion through 18th-19th vertebrae; dorsal-fin and anal-fin origin in the vertical through 20th- 21st, 24th-25th vertebrae; body width 6.4 -9.3% SL; dorsal-fin origin posterior to pelvic-fin insertion (Ref. 92859).

Ease of Identification

Meristic characteristics of Trichomycterus pirabitira

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 37 - 38

Fins

Dorsal fin(s)

Attributes
Fins number
Finlets No. Dorsal   
Ventral  
Spines total
Soft-rays total 11 - 11
Adipose fin

Caudal fin

Attributes more or less truncate

Anal fin(s)

Fins number
Spines total
Soft-rays total 10 - 10

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   7 - 7
Pelvics Attributes  
Position    before origin of D1
Spines     
Soft-rays   5 - 5
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Comments & Corrections
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cfm script by eagbayani, 17.10.00, php script by rolavides, 13/03/08 ,  last modified by sortiz, 06.27.17