Morphology Data of Helcogramma albimacula
Identification keys
Main Ref. Williams, J.T. and J.C. Howe, 2003
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance always different morphology between mature adults
Different colors
Remarks Adults males with first dorsal fin spine elongate, when depressed reaching base of fourth to sixth spine of second dorsal.

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

A species of Helcogramma (sensu Hansen, 1986) with 2 symphysial mandibular sensory pores, second dorsal fin spines usually XIV (two of 80 specimens with XIII and 11 with XV), third dorsal fin segmented rays 10-11, last ribs on vertebral centrum 10, vertebrae modally 10+27=37, pored lateral line scales modally 19 or 20, nape scales present, males with dusky anal fin, both sexes with distinctive pale (red in life), oblong streak over lowest pectoral fin ray bases, adult males first dorsal elongate, reaching base of fourth to sixth spine of second dorsal fin when depressed (Ref. 52308).

Ease of Identification

Meristic characteristics of Helcogramma albimacula

Lateral Lines 1 Interrupted: No
Scales on lateral line
Pored lateral line scales 17 - 26
Scales in lateral series
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total 37 - 37


Dorsal fin(s)

Fins number 3
Finlets No. Dorsal   
Spines total 16 - 18
Soft-rays total 11 - 12
Adipose fin

Caudal fin

Attributes more or less truncate; more or less normal

Anal fin(s)

Fins number 1
Spines total 1 - 1
Soft-rays total 20 - 22

Paired fins

Pectoral Attributes  more or less normal
Soft-rays   15 - 17
Pelvics Attributes  more or less normal
Position    jugular
Spines     1
Soft-rays   2 - 2
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Busson, Frédéric
Modified by Hilomen, Teresa
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