Morphology Data of Ernstichthys taquari
Identification keys
Abnormalities
Main Ref. Dagosta, F.C.P. and M. de Pinna, 2021
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
Cross section flattened
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

This species is distinguished from all its congeners by the following characters: relatively narrow bilateral bony shields on dorsal and ventral series, these do not overlap or contact each other anywhere in both series (vs. adjacent shields contacting or overlapping along most or entire series; this trait also separates this species from most hoplomyzontine species except those of Hoplomyzon); with seven or eight serrations on the posterior margin of the pectoral spine (vs. 10-18); pectoral-fin spine only slightly larger than subsequent soft rays, there is a gradual transition between the spine and the rest of fin (vs. spine 25% longer or more than soft rays, leaving a large portion of protruding spine without corresponding fin web distally); differs from E. megistus by having a well-developed rictal barbel (vs. no barbel or reduced to bump); differs from E. intosus by the unbranched maxillary barbel (vs. with thread-like secondary barbels); no dentations along the anterior margin of the pectoral fin (vs. with dentations); with two pairs of stout and regularly-positioned mental barbels (vs. over 100 thread-like and uniformly distributed barbels); D i+4 (vs. i+7); A i+6 anal-fin rays (vs. viii+4); basipterygium entirely hidden in integument (vs. anterolateral arm of basipterygium exposed on the skin, forming rugose shield) (Ref. 124573).

Ease of Identification

Meristic characteristics of Ernstichthys taquari

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
Finlets No. Dorsal   
Ventral  
Spines total
Soft-rays total
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number
Spines total
Soft-rays total

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   
Pelvics Attributes  
Position    
Spines     
Soft-rays   
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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