Morphology Data of Distichodus kolleri
Identification keys
Abnormalities
Main Ref. Vari, R.P., 2007
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs no special organs
Different appearance
Different colors
Remarks

Descriptive characteristics of juvenile and adult

Striking features none
Body shape lateral short and / or deep
Cross section compressed
Dorsal head profile more or less straight
Type of eyes more or less normal
Type of mouth/snout more or less normal
Position of mouth sub-terminal/inferior
Type of scales
Diagnosis

Diagnosis: 46-49 pored lateral line scales, followed by several smaller, unpored scales on caudal fin base; total dorsal rays 21-27; dorsal fin becoming increasingly elongate ontogenetically, tip of dorsal fin reaching beyond base of caudal fin in larger individuals (Ref. 81638).

Description: body deep, body depth 0.46-0.50 SL, becoming proportionally deeper in larger individuals, distinctly laterally compressed; mouth subterminal with 2 rows of bicuspid teeth in each jaw; maxilla edentulous; premaxilla with 9-13, dentary with 9-12 teeth in outer row, with higher numbers in both jaws typical of larger specimens; caudal fin lobes pointed, scales overlying rays; scales limited to basal portion of middle rays of each lobe in smaller individuals and extending further distally in larger specimens and reaching close to distal portions of dorsal and ventral most rays in largest individuals; body scales ctenoid and moderate-sized; 8 scales between anal fin origin and lateral line; D: IV-V,17-22 with first ray sometimes very short; A: II-IV,11-14 (Ref. 81638).

Coloration: tan to greyish brown, darker dorsally in preserved specimens; head with dark pigmentation extending across snout and upper portions, but otherwise without distinct pigmentation; body with series of thin, vertically elongate bars variably present from slightly posterior of opercle to above posterior limit of anal fin base; posterior-most bars sometimes vertically divided, with ventral components extending to short distance dorsal of anal fin base; bars somewhat wider in larger individuals, particularly along region above lateral line and consequently giving appearance of interrupted longitudinal band; vertically elongate spot on posterior portion of caudal peduncle; fins nearly hyaline in smaller specimens, but dusky, albeit without distinct pigmentation pattern, in larger individuals; unscaled distal portion of caudal fin lighter (Ref. 81638).

Ease of Identification

Meristic characteristics of Distichodus kolleri

Lateral Lines 1 Interrupted: No
Scales on lateral line
Pored lateral line scales 46 - 49
Scales in lateral series
Scale rows above lateral line 8 - 9
Scale rows below lateral line
Scales around caudal peduncle
Barbels 0
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   
Ventral  
Spines total 0 - 0
Soft-rays total 21 - 27
Adipose fin present

Caudal fin

Attributes forked; more or less normal

Anal fin(s)

Fins number 1
Spines total 0 - 0
Soft-rays total 13 - 18

Paired fins

Pectoral Attributes  more or less normal
Spines     
Soft-rays   16 - 19
Pelvics Attributes  more or less normal
Position    abdominal  behind origin of D1
Spines     
Soft-rays   10 - 11
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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