Morphology Data of Arnoglossus thori
Identification keys
Abnormalities
Main Ref. Whitehead, P.J.P., M.-L. Bauchot, J.-C. Hureau, J. Nielsen and E. Tortonese (eds.), 1986
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs no special organs
Different appearance different morphology in juveniles and adults
Different colors different colors in juveniles and adults
Remarks

Descriptive characteristics of juvenile and adult

Striking features flatfish
Body shape lateral fusiform / normal
Cross section compressed
Dorsal head profile more or less straight
Type of eyes more or less normal
Type of mouth/snout more or less normal
Position of mouth superior
Type of scales
Diagnosis

Second ray of dorsal fin very long, with a conspicuous dark, fringed broad membrane. First 3 or 4 dorsal fin rays generally blackish in adults but only the elongate second ray is dark in immature fishes.

Ease of Identification

Meristic characteristics of Arnoglossus thori

Lateral Lines 1 Interrupted: No
Scales on lateral line 49 - 56
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle
Barbels 0
Gill clefts (sharks/rays only) absent
Gill rakers
on lower limb
on upper limb
total
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes extending over most of the back length
Fins number 1
Finlets No. Dorsal   0 - 0
Ventral  0 - 0
Spines total 0 - 0
Soft-rays total 81 - 91
Adipose fin absent

Caudal fin

Attributes more or less truncate; more or less normal

Anal fin(s)

Fins number 1
Spines total
Soft-rays total 61 - 69

Paired fins

Pectoral Attributes  more or less normal
Spines     
Soft-rays   
Pelvics Attributes  asymmetric in size/position
Position    thoracic  behind origin of D1
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Luna, Susan M.
Modified by Reyes, Rodolfo B.
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