Morphology Data of Aplodactylus arctidens
Identification keys
Main Ref. Russell, B.C., 2000
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

This species is characterized by the following: small mouth, somewhat ventral on head; fleshy lips, upper lip projecting, maxilla reaching a vertical through posterior nostril; small teeth, mainly tricuspid, a few lanceolate, in 3-4 rows in jaws, with outermost row largest; vomerine teeth in small patch; nostrils 2 pairs, anterior pair with fleshy tentaculate flaps on anteroventral margin and posteroventral margin; opercle with broad flat spine, does not extend to the fleshy margin; scales are small, cycloid, embedded, extending on to cheeks and opercles, and forming a sheath along base of spinous dorsal fin (Ref. 86913).

Ease of Identification

Meristic characteristics of Aplodactylus arctidens

Lateral Lines Interrupted: No
Scales on lateral line 100 - 120
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 11 - 15
on upper limb 4 - 8
total 17 - 22
preanal 16 - 16
total 34 - 34


Dorsal fin(s)

Fins number
Finlets No. Dorsal   
Spines total 16 - 19
Soft-rays total 16 - 18
Adipose fin

Caudal fin


Anal fin(s)

Fins number
Spines total 3 - 3
Soft-rays total 6 - 8

Paired fins

Pectoral Attributes  
Soft-rays   13 - 14
Pelvics Attributes  
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Capuli, Estelita Emily
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