Morphology Data of Enneanectes quadra
Identification keys
Abnormalities
Main Ref. Victor, B.C., 2017
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 oval
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

This species is distinguished by the following characters: orbital cirrus is dark and narrow, more than twice longer than wide, ending in a single point (rarely bifid); without scales on upper preopercle immediately behind eye, below sensory canal (one individual with one on one side); without dark spots along pored lateral-line; iris has 3 red, spoke-like bands at about 8, 10, and 1 o’clock with wide interspaces (as wide or wider than red spokes) and a red rear lower quadrant (when fresh); short snout with a reddish band from orbit across front half of upper and lower jaws, pale in preserved fish with only patches (not a complete band) of fine melanophores; presence of a short reddish bar extending from lower rim of orbit, when preserved only a short dark bar, not reaching past corner of jaw; usually a white patch immediately behind suborbital bar, when preserved only a scattering of fine melanophores; preopercle and opercle pale, except for reddish and dark patch at orbital rim at 5 o’clock and a bar along posterior margin of preopercle; rear body not red; anal fin barred, 6 to 8 dark patches corresponding to each body bar and mid-interspace; caudal-peduncle dark bar typically about square (same width throughout with corners squared) or slightly wider than high, extending onto caudal-fin ray insertions; caudal fin mostly unmarked, almost clear on preserved specimens, with faint melanin outlining ray shafts (Ref. 116142).

Characters shared with Enneanectes jordani are the following: D III+XII+7; A II,15; pectoral-fin rays 15; short first dorsal fin when adpressed not reaching second-spine base of second dorsal fin (often not reaching fin origin); 13 modal pored lateral-line scales and about 19 or 20 scales in notched midline row; scaled belly and pectoral-fin base with two scales above rear of pored lateral-line, the upper scale much smaller [both characters of scaled-belly subgroup]; body bars 5 with the last body bar on caudal peduncle much darker; anterior orbital flange with fine spines (Ref. 116142).

Ease of Identification

Meristic characteristics of Enneanectes quadra

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 3
Finlets No. Dorsal   
Ventral  
Spines total 15 - 15
Soft-rays total 7 - 7
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number 1
Spines total 2 - 2
Soft-rays total 15 - 15

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   15 - 15
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