Morphology Data of Pycnochromis abruptus
Identification keys
Abnormalities
Main Ref. Randall, J.E., 2001
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 short and / or deep
Cross section compressed
Dorsal head profile clearly convex
Type of eyes more or less normal
Type of mouth/snout more or less normal
Position of mouth terminal
Type of scales ctenoid scales
Diagnosis

Body very dark gray-brown, depth 1.95-2.1 in SL. Caudal fin abruptly white. Narrow posterior part of dorsal and anal fins hyaline. Base of pectoral fins with a large black spot. Upper and lower spiniform procurrent caudal rays 2; upper and lower 2 branched caudal rays filamentous and often very long. Tube lateral line scales 16-18, rarely 16. Free margin of subopercle nearly reaching a vertical at rear margin of pupil.

Ease of Identification

Meristic characteristics of Pycnochromis abruptus

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 18 - 21
on upper limb 6 - 8
total
Vertebrae
preanal
total 26 - 26

Fins

Dorsal fin(s)

Attributes
Fins number
Finlets No. Dorsal   
Ventral  
Spines total 12 - 12
Soft-rays total 11 - 13
Adipose fin

Caudal fin

Attributes forked; more or less normal

Anal fin(s)

Fins number
Spines total 2 - 2
Soft-rays total 11 - 12

Paired fins

Pectoral Attributes  more or less normal
Spines     
Soft-rays   16 - 18
Pelvics Attributes  more or less normal
Position    thoracic  before origin of D1
Spines     1
Soft-rays   5 - 5
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Comments & Corrections
Back to Search
cfm script by eagbayani, 17.10.00, php script by rolavides, 13/03/08 ,  last modified by sortiz, 06.27.17