Morphology Data of Plotosus lineatus
Identification keys
Abnormalities
Main Ref. Myers, R.F., 1991
Appearance refers to Male; Female
Bones in OsteoBase

Sex attributes

Specialized organs no special organs
Different appearance males alike females
Different colors males alike females
Remarks

Descriptive characteristics of juvenile and adult

Striking features none
Body shape lateral fusiform / normal
Cross section circular
Dorsal head profile more or less straight
Type of eyes more or less normal
Type of mouth/snout more or less normal
Position of mouth sub-terminal/inferior
Type of scales
Diagnosis

This species has the dorsal and anal fins continuous with caudal fin; with 4 pairs of mouth barbels; and a single highly venomous serrate spine at the beginning of the first dorsal and each of the pectoral fins (Ref. 1602).

Description: Characterized by black to brown color on upper side; white ventrally; pair of narrow white stripes extending from head to caudal fin; well separated dorsal fins; origin of second dorsal fin posterior to level of pelvic fin origin; depth of body 5.8-8.0 in SL; anterior nostril tubular, dorsal to upper lip; gill membranes narrowly attached across isthmus (Ref. 90102).

Ease of Identification

Meristic characteristics of Plotosus lineatus

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 8
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes no striking attributes
Fins number 2notched No
Finlets No. Dorsal   0 - 0
Ventral  0 - 0
Spines total 1 - 1
Soft-rays total 69 - 115
Adipose fin absent

Caudal fin

Attributes

Anal fin(s)

Fins number 1
Spines total 0 - 0
Soft-rays total 58 - 82

Paired fins

Pectoral Attributes  more or less normal
Spines     1
Soft-rays   9 - 13
Pelvics Attributes  more or less normal
Position    abdominal  behind origin of D1
Spines     0
Soft-rays   12 - 12
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