Morphology Data of Grallenia larsonae
Identification keys
Abnormalities
Main Ref. Allen, G.R. and M.P. Hammer, 2018
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 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,6–7; A I,6–8; first dorsal-fin spine not produced into filament; pelvic frenum present; cephalic sensory canals and associated pores present; 22–30 longitudinal scales. Coloration in alcohol is tan with 8 widely spaced, small, brown spots in mid-lateral row on side of the body; faint dark bar of stellate melanophores across anterior cheek; scattered pepper-like melanophores on anterior part of upper opercle It is closely related to Grallenia arenicola from Kashiwa-jima island of southern Japan. This species has relatively fewer scales anterior to the level of the second dorsal fin origin compared with Grallenia arenicola (Ref. 123066).

Ease of Identification

Meristic characteristics of Grallenia larsonae

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 6 - 6
Vertebrae
preanal
total 27 - 27

Fins

Dorsal fin(s)

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

Caudal fin

Attributes

Anal fin(s)

Fins number 1
Spines total 1
Soft-rays total 7

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   15 - 17
Pelvics Attributes  
Position    
Spines     1
Soft-rays   5
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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