Morphology Data of Salvelinus willoughbii
Identification keys
Main Ref. Kottelat, M. and J. Freyhof, 2007
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

Distinguished from congeners in British Isles by the combination of the following characters: coloration of flank bluish brown with numerous medium orange spots, belly orange; pectoral, pelvic and anal fins reddish brown to bright red, with white anterior margin; interorbital space convex; eye diameter about equal to snout length at 12-14 cm SL, 4.3-5.9 times in HL; length of lower jaw at most 2/3 of HL; snout conical, upper jaw not protruding; maxilla reaching posterior margin of eye in adult males; and 11-16 gill rakes on lower limb (Ref. 59043).

Ease of Identification

Meristic characteristics of Salvelinus willoughbii

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 11 - 16
on upper limb


Dorsal fin(s)

Fins number 1
Finlets No. Dorsal   
Spines total
Soft-rays total
Adipose fin

Caudal fin

Attributes forked

Anal fin(s)

Fins number
Spines total
Soft-rays total

Paired fins

Pectoral Attributes  
Pelvics Attributes  
Position    abdominal  behind origin of D1
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Torres, Armi G.
Modified by Torres, Armi G.
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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