Morphology Data of Helcogramma rhinoceros
Identification keys
Main Ref. Chiang, M.-C. and I.-S. Chen, 2012
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors

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

Trunk without longitudinal stripes; symphyseal dentary pores 1; upper lip with proboscis-like extension on males, head with horizontal yellowish or bluish white line from the upper rim of upper jaw to opercle (Ref. 94457). Males are easily recognized by the extended nose and change color to display to females with an electric blue line below the eye, shaded by black below (Ref. 48636). Also Ref. 94101.

Ease of Identification

Meristic characteristics of Helcogramma rhinoceros

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales 19 - 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
total 37 - 37


Dorsal fin(s)

Fins number 3
Finlets No. Dorsal   
Spines total 17 - 18
Soft-rays total 10 - 11
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 - 20

Paired fins

Pectoral Attributes  more or less normal
Pelvics Attributes  more or less normal
Position    jugular
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Santos, Kristine
Modified by Hilomen, Teresa
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