Morphology Data of Panaqolus claustellifer
Identification keys
Main Ref. Tan, M., L.S. de Souza and J.W. Armbruster, 2016
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
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales

Panaqolus claustellifer is distinguished from most of its congeners by its color pattern of dark and light bars on the body, bands on the fins, and with dots and vermiculations absent (vs. no bars in P. albomaculatus, P. nix, P. nocturnus, and P. koko; vs. fins unbanded in P. albomaculatus, P. dentex, P. koko, and P. nix; and vs. dots and vermiculations present in P. albivermis and P. maccus). It also differs from P. albivermis, P. albomaculatus, and P. nix by dentaries forming an acute angle ~70ยบ (vs. dentaries forming a very acute angle to dentaries parallel), and from P. koko by spoon-shaped teeth with small lateral cusps (vs. quadrate teeth with strong lateral cusps). It can be differentiated from other barred species of Panaqolus by the specific bar number and orientation and color pattern on the head, with bars oriented in a anteroventral-posterodorsal direction (vs. anterodorsal-posteroventral bars in P. gnomus), having consistently 5 bars (n = 4) on the trunk that do not increase with size (vs. number increasing with size in P. purusiensis and fading at body sizes >85 mm SL, and vs. 6-12 in P. changae), and the color pattern on the head of straight lines extending from posterior to the eye to the snout margin, splitting in the middle portion of the line in larger specimens (vs. small, dense reticulate lines in P. changae) (Ref. 109759).

Ease of Identification

Meristic characteristics of Panaqolus claustellifer

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)

Attributes first rays forming locking device
Fins number 1
Finlets No. Dorsal   
Spines total 2 - 2
Soft-rays total 7 - 7
Adipose fin present

Caudal fin

Attributes more or less truncate

Anal fin(s)

Fins number
Spines total
Soft-rays total 5 - 5

Paired fins

Pectoral Attributes  
Spines     1
Soft-rays   6 - 6
Pelvics Attributes  
Position    abdominal  behind origin of D1
Soft-rays   6 - 6
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Torres, Armi G.
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