Morphology Data of Boulengerella xyrekes
Identification keys
Abnormalities
Main Ref. Vari, R.P., 1995
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
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

The location of the dorsal fin base distinctly anterior to the vertical through the anal fin origin distinguishes this species from all ctenoluciids except B. lucius and B. cuvieri. From B. lucius it can be distinguished by the discrete black spot on the basal portions of the caudal fin rays. From B. cuvieri it can be distinguished on the basis of scale counts.

Ease of Identification likely to be confused with closely related species.

Meristic characteristics of Boulengerella xyrekes

Lateral Lines 1 Interrupted: No
Scales on lateral line
Pored lateral line scales 82 - 90
Scales in lateral series 87 - 94
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
total 44 - 46

Fins

Dorsal fin(s)

Attributes
Fins number 1
Finlets No. Dorsal   0 - 0
Ventral  0 - 0
Spines total 0 - 0
Soft-rays total 10 - 11
Adipose fin present

Caudal fin

Attributes forked; asymmetric

Anal fin(s)

Fins number 1
Spines total 0 - 0
Soft-rays total 10 - 10

Paired fins

Pectoral Attributes  more or less normal
Spines     0
Soft-rays   21 - 27
Pelvics Attributes  more or less normal
Position    abdominal  before origin of D1
Spines     0
Soft-rays   8 - 8
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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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