Morphology Data of Echeneis naucrates
Identification keys
Main Ref. Myers, R.F., 1991
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 elongated
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales

Description: Greyish with dark brown to blackish mid-lateral stripe bordered by narrow white stripes above and below, from eye to caudal fin base (Ref. 26938, Ref. 90102). Body depth contained in 8-14 times in SL; caudal fin in adults almost truncate with the upper and lower lobes longer than the middle rays; first dorsal fin replaced by a transversal, laminated, oval cephalic disc with 18-28 laminae (Ref. 10970); 21-28 laminae (according to K.R. Sreenath pers. Comm, 11/2010;; also in Ref. 90102) .

Ease of Identification

Meristic characteristics of Echeneis naucrates

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 10 - 17
on upper limb


Dorsal fin(s)

Attributes modified to suction disc
Fins number 2
Finlets No. Dorsal   0 - 0
Ventral  0 - 0
Spines total 0 - 0
Soft-rays total 32 - 42
Adipose fin absent

Caudal fin

Attributes more or less truncate

Anal fin(s)

Fins number 1
Spines total 0 - 0
Soft-rays total 29 - 41

Paired fins

Pectoral Attributes  
Spines     0
Soft-rays   22 - 23
Pelvics Attributes  
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Garilao, Cristina V.
Modified by Olisa, Kristine Elaine Paz
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