Morphology Data of Pegasus tetrabelos
Identification keys
Main Ref. Osterhage, D., J.J. Pogonoski, S.A. Appleyard and W.T. White, 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 elongated
Cross section flattened
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales

This species is distinguished by the following characters: 12 tail rings with the anteriormost 9 mobile, articulating laterally, and remaining 3 are fused together, attenuated and dorsoventrally flattened; terminodorsal-lateral (tdl) and terminoventral-lateral (tvl) plates each with an anteriorly and posteriorly directed spine; no terminal-lateral plates (tl); with interpectoral plate (ip); with a single ventral preopercular notch; spatulate rostrum; carapace with 3 small posteriorly directed tubercles along each of the dorsal ridge, one at the centre of each dorsal plate; no scales on orbit; pectoral-fin soft rays 9-10 (usually 10), the 5th ray stouter than other rays; 7 abdominal centra, 14 caudal centra, 21 total centra; 4 dark saddles on tail and without dark saddle on tail ring XI (Ref. 117113).

Ease of Identification

Meristic characteristics of Pegasus tetrabelos

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
Finlets No. Dorsal   
Spines total
Soft-rays total 5 - 5
Adipose fin

Caudal fin

Attributes more or less truncate

Anal fin(s)

Fins number
Spines total
Soft-rays total 5 - 5

Paired fins

Pectoral Attributes  
Soft-rays   9 - 10
Pelvics Attributes  
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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