Morphology Data of Helcogramma larvata
Identification keys
Main Ref. Holleman, W., 2007
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks Head: male ventrally masked, female spotted (Ref. 75031)

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: Dorsal fin III + XI-XII+ 8-9, 2nd fin twice height of 1st; anal fin I + 16-18; pectoral rays 15 (1+7+7); pelvic fin I, 2, spine short and hidden, segmented rays simple, partially united by membrane. Vertebrae 10 + 24-25. LL total lateral scales 32-35; pored 20-22 scales, ends below 3rd dorsal fin; nape, belly, 1st and 2nd dorsal fin and anterior anal-fin base scaleless. Mandibular pores 2-3+1+2-3. Orbital cirrus small. Head length 3.5 in SL; eye 2.7, maxilla 2.1 in HL. Head, male masked ventrally, female with few dark spots. Fins pale, D1 with dusky distal margin. Live color unknown (Ref. 75031).

Ease of Identification

Meristic characteristics of Helcogramma larvata

Lateral Lines Interrupted: No
Scales on lateral line 32 - 35
Pored lateral line scales 20 - 22
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
preanal 10 - 10
total 34 - 35


Dorsal fin(s)

Fins number 3
Finlets No. Dorsal   
Spines total 15 - 17
Soft-rays total 9 - 11
Adipose fin absent

Caudal fin

Attributes more or less truncate

Anal fin(s)

Fins number 1
Spines total 1 - 1
Soft-rays total 17 - 21

Paired fins

Pectoral Attributes  
Soft-rays   15 - 15
Pelvics Attributes  
Position    thoracic
Spines     1
Soft-rays   2 - 2
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Casal, Christine Marie V.
Modified by Olisa, Kristine Elaine Paz
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