Morphology Data of Asterropteryx atripes
Identification keys
Main Ref. Shibukawa, K. and T. Suzuki, 2002
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 compressed
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales

This species is distinguished from its congeners by having the following combination

of characters: long, filamentous 3rd spine of 1st dorsal fin, distal tip usually over end of 2nd dorsal fin base when adpressed; almost separated pelvic fins, innermost (= 5th) segmented rays connected by rudimentary low membrane between bases, no frenum; 4-7 short spines on posterior margin of preopercle (uppermost spine usually just behind the cephalic sensory canal pore N); large eye, 32.3-35.8% of head length; enlarged haemal arches on 1st two caudal vertebrae; posterior margin of eye to caudal fin base has a distinct black band (indistinct in dark-phase individuals); black pelvic fin (vivid in dark phase individuals); many minute bright blue spots on head and body when live or fresh; distinct dark spots on head and body absent; iris entirely reddish-brown or dusky (bright white ventrally in pale-phase individuals) when alive or fresh, becoming entirely black in preservation, with no white transverse bar on middorsal surface; has a hovering habit (Ref. 44260).

Ease of Identification

Meristic characteristics of Asterropteryx atripes

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 9 - 11
on upper limb 3 - 4
total 13 - 14
preanal 10 - 10
total 26 - 26


Dorsal fin(s)

Fins number 2
Finlets No. Dorsal   
Spines total 6 - 7
Soft-rays total 9 - 10
Adipose fin

Caudal fin


Anal fin(s)

Fins number 1
Spines total 1 - 1
Soft-rays total 9 - 9

Paired fins

Pectoral Attributes  
Spines     0
Soft-rays   16 - 18
Pelvics Attributes  
Spines     1
Soft-rays   5 - 5
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Capuli, Estelita Emily
Modified by Valdestamon, Roxanne Rei
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