Morphology Summary - Pelontrus raki
Morphology Data of Pelontrus raki
Identification keys
Abnormalities
Main Ref. Shepherd, B., H.T. Pinheiro, A. Najeeb, C.R. Rocha and L.A. Rocha, 2025
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks

Descriptive characteristics of juvenile and adult

Striking features
Body shape lateral  (shape guide)
Cross section compressed
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

This species is distinguished from its congeners by the following set of characters: D X,15; A III,7; pectoral-fin rays 13|13 (13|12), all unbranched; principal caudal-fin rays 9 + 8; lateral line complete with 30-32 tubed scales; supraneural bones 3, predorsal formula 0/0 + 0/2/1 + 1/1/1/;

gill rakers 5 + 12; circumpeduncular scales 11-12; oblique rows of scales on cheek 8; longest dorsal spine the 4th or 5th; no fleshy tips on the dorsal-fin spines; no antrorse serrations on preopercle. Colouration: with a series of irregularly shaped patches of red-orange along dorsal two-thirds of body; patches divided into two indistinct rows by the lateral line; patches of red-orange dorsally and posteriorly, becoming more yellow-orange anteriorly and ventrally, golden yellow on opercle and maxilla; anal fin pointed, mostly white proximally, yellow distally, with two yellow spots approximately one-third orbit diameter at the base of third spine and fifth and sixth soft rays; two irregularly shaped yellow-orange spots, approximately one-third orbit diameter, at either side of centermost caudal-fin rays; small orange spot, approximately one-half orbit in diameter, at the base of pelvic fin (Ref.132548).

Ease of Identification

Meristic characteristics of Pelontrus raki

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales 30 - 32
Scales in lateral series
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle 11 - 12
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 12 - 12
on upper limb 5 - 5
total
Vertebrae
preanal 10 - 10
total 26 - 26

Fins

Dorsal fin(s)

Attributes
Fins number
Finlets No. Dorsal   
Ventral  
Spines total 10 - 10
Soft-rays total 15 - 15
Adipose fin

Caudal fin  (shape guide)

Attributes

Anal fin(s)

Fins number
Spines total 3 - 3
Soft-rays total 7 - 7

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   13 - 13
Pelvics Attributes  
Position    
Spines     1
Soft-rays   5 - 5
(e.g. 9948)
(e.g. oophagy)
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cfm script by eagbayani, 17.10.00, php script by rolavides, 13/03/08 ,  last modified by sortiz, 06.27.17