Morphology Data of Elacatinus colini
Identification keys
Main Ref. Randall, J.E. and P.S. Lobel, 2009
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors

Descriptive characteristics of juvenile and adult

Striking features
Body shape lateral fusiform / normal
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales

Dorsal rays VII + I, 11 (10–12, rarely 10); anal rays I,10 (10–11, two of 15 with 11); pectoral

rays 17–19 (usually 18, one of 30 with 19); no scales; body and fins covered with thick adherent mucus; mouth subterminal; tongue truncate; no rostral frenum; color in alcohol pale yellowish gray with a midlateral black stripe from eye nearly to posterior end of caudal fin, about a pupil diameter in width on head, broadening to about an eye diameter in width on body; a blackish line extending posteriorly from above upper edge of eye, continuing below base of dorsal fins, and extending into dorsal part of caudal fin; fins otherwise translucent gray; color in life of body above black lateral stripe bluish to greenish gray with a bright white stripe as wide as pupil passing between black stripe and black line, becoming yellow on head as it nears upper edge of eye; dorsal part of iris brilliant yellow; snout and lips dusky yellow; a median brilliant yellow band on snout extending into anterior interorbital; ventral part of head and body whitish (Ref. 81169).

Ease of Identification

Meristic characteristics of Elacatinus colini

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
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb


Dorsal fin(s)

Fins number
Finlets No. Dorsal   
Spines total 8
Soft-rays total 10 - 12
Adipose fin

Caudal fin


Anal fin(s)

Fins number
Spines total 1
Soft-rays total 10 - 11

Paired fins

Pectoral Attributes  
Soft-rays   17 - 19
Pelvics Attributes  part of sucker-disc
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Busson, Frédéric
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