Morphology Data of Synodus intermedius
Identification keys
Main Ref. Frable, B.W., C.C. Baldwin, B.M. Lutther and L.A. Weigt, 2013
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 circular
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales

This species is distinguished by the following characters: D rays 11-12; A rays 11; total caudal rays 40-42; dorsal segmented caudal rays 9; ventral segmented caudal rays 9-10; dorsal procurrent caudal rays 11-12; ventral procurrent caudal rays 9-10; pelvic-fin rays 8; pectoral-fin rays 11-13; total vertebrae 49-52 (modally 50); pored lateral-line scales 49-52 (modally 51); median predorsal scales 16-17; scale rows on cheek 6-8; HL 15.2-28.4% SL (26.6%); orbit diameter 3.6-6.4% SL (4.7%) and 13.4-22.5% HL (17.2%); interorbital width 2.8-5.3% SL (4.3%) and 10.1-19.4% HL (15.9%); flap on anterior nostril is small and broad, its length 1.5-3.6% HL (2.4%); snout triangular in dorsal view; pelvic-fin length 23.1-26.7% SL (24.9%); when preserved, 3-6 dark bars on caudal fin spanning upper and lower lobes; with a small, rectangular-shaped, black scapular blotch (length 5.1-12.2% HL, mean 8.4%); there are 9-13 dark bars on trunk; colour in life, adults tan to olive and with unevenly distributed yellow stripes along body (Ref. 93218).

Ease of Identification

Meristic characteristics of Synodus intermedius

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales 49 - 52
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
total 49 - 52


Dorsal fin(s)

Fins number 1
Finlets No. Dorsal   0 - 0
Ventral  0 - 0
Spines total 0 - 0
Soft-rays total 11 - 12
Adipose fin present

Caudal fin

Attributes forked; more or less normal

Anal fin(s)

Fins number 1
Spines total 0 - 0
Soft-rays total 11 - 11

Paired fins

Pectoral Attributes  
Spines     0
Soft-rays   11 - 13
Pelvics Attributes  
Position    abdominal  before origin of D1
Spines     0
Soft-rays   8 - 8
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Garilao, Cristina V.
Modified by Capuli, Estelita Emily
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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