Morphology Data of Trimma tauroculum
Identification keys
Main Ref. Winterbottom, R. and M. Zur, 2007
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

The species is characterized by the absence of scales on the cheek, opercle and midline of the nape; fifth pelvic fin ray branched sequentially once; a moderate interorbital trench;

a short and narrow postorbital trench; color of living specimens red with a white belly, a large brown-black spot larger than the eye immediately above the pectoral fin base and numerous smaller dark spots across the nape; and in preserved specimens the dark spots remain but the ground color is yellow. Differs from its congeners by the very large 1.25 eye diameter brown-black spot above the pectoral fin base and the rows of smaller brown spots on the nape separated by a honeycomb pattern (Ref. 59339).

Ease of Identification

Meristic characteristics of Trimma tauroculum

Lateral Lines Interrupted: No
Scales on lateral line 23 - 27
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle 12 - 12
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 13 - 15
on upper limb 2 - 5
total 15 - 20


Dorsal fin(s)

Fins number 2
Finlets No. Dorsal   
Spines total 7 - 7
Soft-rays total 9 - 10
Adipose fin

Caudal fin


Anal fin(s)

Fins number 1
Spines total 1 - 1
Soft-rays total 8 - 8

Paired fins

Pectoral Attributes  
Spines     0
Soft-rays   17 - 19
Pelvics Attributes  
Spines     1
Soft-rays   5 - 5
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered 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