Morphology Data of Elacatinus serranilla
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,10; anal rays I,10; pectoral rays 17–18, usually 18; no scales; body and

fins covered with thick adherent mucus; mouth subterminal; tongue truncate; no rostral frenum; color in alcohol: narrow dark brown stripe extending posteriorly from upper part of eye, broadening laterally on body, and ending diffusely at midposterior end of caudal fin; a narrow dark brown stripe from base of upper lip,

passing just above eye, then dorsally on body below base of dorsal and fins, and continuing into dorsal part of caudal fin; narrow zone between dark stripes pale gray-brown; body below lateral dark stripe pale graybrown; fins translucent yellowish; in life, dark stripes black, narrow pale stripe between stripes bright bluish white, and body below lateral black stripe pale bluish gray; a narrow mid-dorsal bluish white band on snout from behind upper lip to front of interorbital space (Ref. 81169).

Ease of Identification

Meristic characteristics of Elacatinus serranilla

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 - 8
Soft-rays total 10 - 10
Adipose fin

Caudal fin


Anal fin(s)

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

Paired fins

Pectoral Attributes  
Soft-rays   17 - 18
Pelvics Attributes  part of sucker-disc
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Busson, Frédéric
Modified by Valdestamon, Roxanne Rei
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