Morphology Data of Diancistrus pohnpeiensis
Identification keys
Abnormalities
Main Ref. Schwarzhans, W., P.R. Møller and J.G. Nielsen, 2005
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 elongated
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

The species is characterized by the following: vertebrae 11+34-35=45-46, dorsal fin rays 83-85, anal fin rays 66-69; very large eyes (>3.0% SL), D/V 6; outer pseudoclasper large, more than twice the length of inner pseudoclasper, wing-shaped, with moderately narrow base and strongly expanded tip with fleshy bulge; inner pseudoclasper joined to outer pseudoclasper anteriorly, thin, with single sharply pointed tip, slightly extending over anterior part of outer pseudoclasper; moderately broad scale patch on cheek with 5-6 scale rows on upper cheek, 2-3 scales on operculum above opercular spine (1 row); the head massive; otolith moderately slender, length to height ratio 1.9-20 (Ref. 57884).

Ease of Identification

Meristic characteristics of Diancistrus pohnpeiensis

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
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total
Vertebrae
preanal 11 - 11
total 45 - 46

Fins

Dorsal fin(s)

Attributes
Fins number
Finlets No. Dorsal   
Ventral  
Spines total
Soft-rays total 83 - 85
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number
Spines total
Soft-rays total 66 - 69

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   18 - 19
Pelvics Attributes  
Position    
Spines     
Soft-rays   
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