Morphology Data of Helcogramma serendip
Identification keys
Main Ref. Holleman, W., 2007
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

Diagnosis: A small (< 2.5 cm SL) species of the genus. Dorsal fin III + XIII+ 10, 1st fin low; anal fin I, 19; pectoral rays 16 (2+7+7); pelvic fin I, 2, spine short and hidden, segmented rays simple, partially united by membrane. Vertebrae 10+25. LL total lateral scales 37-38; tubed 20-22 (21), ends below junction of 2nd and 3rd dorsal fin; nape and anterior anal-fin bases scaleless, caudal-fin base with 2 rows of scales. Mandibular pores 4+1+4. Orbital cirrus pointed, small. Posterior margin of orbit and edges of occipital sensory canals with minute serrations. Head length 3.6 in SL; eye 2.8, maxilla 2.4 in HL. Live color not known. Male head with stripe below eyes, from upper lip to opercle and pectoral-fin base. Females with H-bars on body (Ref. 75031).

Ease of Identification

Meristic characteristics of Helcogramma serendip

Lateral Lines Interrupted: No
Scales on lateral line 36 - 39
Pored lateral line scales
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 35 - 35


Dorsal fin(s)

Fins number 3
Finlets No. Dorsal   
Spines total 16 - 16
Soft-rays total 10 - 10
Adipose fin absent

Caudal fin

Attributes more or less truncate

Anal fin(s)

Fins number 1
Spines total 1 - 1
Soft-rays total 18 - 19

Paired fins

Pectoral Attributes  
Soft-rays   16 - 16
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 Johnson, J. Antony
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