Morphology Data of Trimma abyssum
Identification keys
Abnormalities
Main Ref. Allen, G.R., 2015
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks

Descriptive characteristics of juvenile and adult

Striking features
Body shape lateral elongated
Cross section oval
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

This species is distinguished by the following set of characters: D VI + I,7- 8, the second and third spines are the longest, with short filamentous tips reaching to between bases of first two segmented rays of second dorsal fin when adpressed; A I,8; pectoral rays 16, all are unbranched; pelvic fin I,5 with the fifth pelvic ray unbranched, 48-55% length of fourth pelvic ray; bony interorbital 53-65% pupil diameter; nape fully scaled with 12-13 scales on midline of predorsal; cheek and opercle covered with scales; scales ctenoid on breast (prepelvic); a prominent dark bar at caudal-fin base and scale pockets are strongly outlined with melanophores (Ref. 100512).

Ease of Identification

Meristic characteristics of Trimma abyssum

Lateral Lines Interrupted: No
Scales on lateral line 26 - 26
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes
Fins number 2
Finlets No. Dorsal   
Ventral  
Spines total 7 - 7
Soft-rays total 8 - 8
Adipose fin

Caudal fin

Attributes

Anal fin(s)

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

Paired fins

Pectoral Attributes  
Spines     0
Soft-rays   16 - 16
Pelvics Attributes  
Position    
Spines     1
Soft-rays   5 - 5
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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