Morphology Data of Lythrichthys longimanus
Identification keys
Abnormalities
Main Ref. Wada, H., Y. Kai and H. Motomura, 2021
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 fusiform / normal
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: scale rows between 6th dorsal-fn spine and lateral line 8-10 (usually 9); scale rows between last dorsal-fn spine and lateral line 10-13 (11); middle postorbital scale rows 3-4 (3); caudal-peduncle depth 8.2-9.6% (moderately 9.9%) of SL; interorbital width at vertical midline of eye 19.8-24.2% (22.3%) of HL, maxillary depth 14.3-16.9% (15.6%), and lower opercular spine length 28.0-33.6% (31.3%); dorsal margin of interorbital space is somewhat fattened; with nasal and parietal spines; supraocular spine is rudimentary; second lacrimal spine directed posteroventrally; tip of the lower opercular spine just short of or reaching to posterior margin of opercle (sometimes beyond margin in specimens from ca. 15.0 cm SL); jaws with short, dense conical teeth; premaxillary teeth in 3-6 irregular rows, totaling ca. 200 teeth. Colouration: head and body base color scarlet to dull red, with numerous small smudge-like or blurred black blotches above the lateral line when fresh; black distal margin on caudal fin in specimens from ca. > 10.0 cm SL; oral surface uniformly dull- to coal black in preserved specimens (uniformly pale, sometimes a few smudges on specimens up to ca. 10.0 cm SL) (Ref. 123746).

Ease of Identification

Meristic characteristics of Lythrichthys longimanus

Lateral Lines Interrupted: No
Scales on lateral line
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
Finlets No. Dorsal   
Ventral  
Spines total 11 - 13
Soft-rays total 9 - 11
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number
Spines total 3 - 3
Soft-rays total 4 - 6

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   21 - 23
Pelvics Attributes  
Position    
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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