Morphology Data of Ungusurculus sundaensis
Identification keys
Abnormalities
Main Ref. Schwarzhans, W. and P.R. Møller, 2007
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 elongated
Cross section compressed
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

This species is distinguished by the following characters: D 79-86, A 60-64, D/A 26, V in D 2.2-2.3; vertebrae 12+30-31=42-43; anterior nostril located 1/4 distance from upper lip to aggregate distance to anterior margin of eye; free pseudoclaspers 2 pairs, the outer pseudoclasper is wing-shaped with broad base and distally widened supporter with anterior hook, prominent knob on inner face of outer pseudoclasper fitting into opening of inner pseudoclasper, the inner one is long, very massive, stalked with narrow base, distally with claw-like, outwardly directed strong spines, inner and outer pseudoclasper matching together in lock/key mode; cheeks with 6 scale rows on upper part and 4 rows on lower part; no upper preopercular pore; otolith elongate, its length to height is 2.3-2.4, with pointed anterior and posterior tips, symmetrical pre- and postdorsal angles, the section in between straight, short sulcus with fused colliculi, its centre anterior of centre of otolith, inclined about 5°, otolith length to sulcus length is 2.4-2.5 (Ref. 76869).

Ease of Identification

Meristic characteristics of Ungusurculus sundaensis

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales
Scales in lateral series
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 15 - 16
Vertebrae
preanal 12 - 12
total 42 - 43

Fins

Dorsal fin(s)

Attributes
Fins number
Finlets No. Dorsal   
Ventral  
Spines total
Soft-rays total 79 - 86
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number
Spines total
Soft-rays total 60 - 64

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   20 - 21
Pelvics Attributes  
Position    
Spines     
Soft-rays   
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