";} } ?> Morphology Summary - Catostomus tsiltcoosensis
Morphology Data of Catostomus tsiltcoosensis
Identification keys
Main Ref. Kettratad, J. and D.F. Markle, 2010
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors different colors during breeding season only

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 sub-terminal/inferior
Type of scales

Distinguished from all other species of Catostomus by having the following combination of characters: 65-80 scales on lateral line; 9-12 dorsal fin with rays; 14-38 infraorbital pores; gill 24-31 gill rakers in specimens >20 cm SL; gill rakers with spines in clusters; caudal peduncle depth 6.4-9.3% SL; lateral fields of scales with either no radii or extensions of anterior radii; and foramen for the ninth cranial nerve between the exoccipital and prootic (Ref. 87374).

Ease of Identification

Meristic characteristics of Catostomus tsiltcoosensis

Lateral Lines Interrupted: No
Scales on lateral line 65 - 80
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line 11 - 17
Scale rows below lateral line 8 - 14
Scales around caudal peduncle 19 - 28
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
preanal 23 - 26


Dorsal fin(s)

Attributes no striking attributes
Fins number
Finlets No. Dorsal   
Spines total
Soft-rays total 9 - 12
Adipose fin

Caudal fin

Attributes more or less truncate

Anal fin(s)

Fins number
Spines total
Soft-rays total

Paired fins

Pectoral Attributes  more or less normal
Pelvics Attributes  more or less normal
Position    abdominal  behind origin of D1
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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