Morphology Data of Gymnoamblyopus novaeguineae
Identification keys
Main Ref. Murdy, E.O. and C.J. Ferraris Jr., 2003
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 fusiform / normal
Cross section oval
Dorsal head profile
Type of eyes other (see remarks)
Type of mouth/snout other (see remarks)
Position of mouth
Type of scales scales embedded or partly/completely absent

Pterygiophore formula 3-12210; having only 1 anal-fin pterygiophore anterior to first haemal spine. Absence of the following: Y-shaped second anal-fin pterygiophore, chin barbels, scales, raised dermal folds or ridges, and cephalic sensory canals and pores. Short pleural ribs posteriorly directed. Vertical mouth large; lips fleshy especially at rictus. Eyes rudimentary, but distinct; covered by skin. Posterior naris lateral to, and slightly anterior to, eye. Anterior naris at tip of small flap of skin overhanging upper jaw. Dorsal-fin base long and broadly joined with caudal fin; anal-fin membrane also broadly joined with caudal fin. Pectoral fin margin rounded posteriorly. Pelvic fin with well-developed frenum and connecting membrane forming cup-shaped disc. Caudal fin slightly longer than head. Head depressed with a slightly compressed body. (Ref. 45979).

Ease of Identification

Meristic characteristics of Gymnoamblyopus novaeguineae

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
preanal 10 - 10
total 26 - 26


Dorsal fin(s)

Fins number 2
Finlets No. Dorsal   
Spines total 6 - 6
Soft-rays total 33 - 33
Adipose fin absent

Caudal fin


Anal fin(s)

Fins number 1
Spines total
Soft-rays total 26 - 26

Paired fins

Pectoral Attributes  
Spines     0
Soft-rays   16 - 16
Pelvics Attributes  
Spines     1
Soft-rays   5 - 5
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Capuli, Estelita Emily
Modified by Reyes, Rodolfo B.
Checked by Murdy, Edward O.
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