Morphology Data of Bathygobius lacertus
Identification keys
Main Ref. Tornabene, L., C. Baldwin, L.A. Weigt and F. Pezold, 2010
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors

Descriptive characteristics of juvenile and adult

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

Diagnosis: Pectoral fin rays 18-20 (modally 19); lateral scale rows 38-42; upper jaw length 12.5-15.9 % SL; first dorsal fin with 1-4 dark blotches on each spine, producing 1-4 distinct longitudinal stripes of pigment, stripes fading distally; predorsal squamation reaching anteriorly to vertical through posterior margin of preopercle, sometimes extending slightly beyond this point or falling short just short of it, rarely reaching postorbital spots; trunk with two offset rows of 6-7 dark blotches ventrally, often forming distinctive pattern resembling alternating dark squares on a checkerboard; first row positioned just below lateral midline and extending from beneath pectoral fin to caudal fin base; second row of spots offset from first, positioned just above ventral midline and extending from beneath pectoral fin to caudal fin base; spots in lower row typically more diffuse than spots in upper row, becoming more diffuse posteriorly (Ref. 85559).

Ease of Identification

Meristic characteristics of Bathygobius lacertus

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
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb


Dorsal fin(s)

Fins number 2
Finlets No. Dorsal   
Spines total 7 - 7
Soft-rays total 9 - 9
Adipose fin

Caudal fin


Anal fin(s)

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

Paired fins

Pectoral Attributes  
Soft-rays   18 - 20
Pelvics Attributes  
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Valdestamon, Roxanne Rei
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