Morphology Data of Ocosia dorsomaculata
Identification keys
Abnormalities
Main Ref. Chungthanawong, S. and H. Motomura, 2022
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
Cross section compressed
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: A 5-7 (mode 6); pectoral-fin rays 12-14 (13); lateral-line pores 15-20 (18) ;total gill rakers 9-14 (10) no papillae on the upper and lower lips; prsence of supraocular spine, a small lateral lacrimal spine (sometimes absent in specimens larger than 8.78 cm SL) and suborbital spine (sometimes absent in specimens larger than 9.38 cm SL); second dorsal-fin spine length 26.5-42.8% (mean 33.9%) of SL; third dorsal-fin spine shorter or subequal to second spine, its length 74.8-97.9% (83.8%) of D2L; membrane of spinous portion of dorsal fin incised. Colouration: body with 11-15 longitudinal pale brown to dark brown bars along lateral line from behind opercular margin to caudal-fin base; irregular pale brown to dark brown blotches 1 or 2 on dorsal-fin membrane between fifth to ninth spines (Ref. 125849).

Ease of Identification

Meristic characteristics of Ocosia dorsomaculata

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales 15 - 20
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 5 - 10
on upper limb 2 - 5
total 9 - 14
Vertebrae
preanal 11 - 11
total 26 - 27

Fins

Dorsal fin(s)

Attributes
Fins number 1
Finlets No. Dorsal   
Ventral  
Spines total 15 - 17
Soft-rays total 7 - 9
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number 1
Spines total 3 - 3
Soft-rays total 5 - 7

Paired fins

Pectoral Attributes  
Spines     0
Soft-rays   12 - 14
Pelvics Attributes  
Position    
Spines     1
Soft-rays   5 - 5
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