Occurrence of Malabar Snakehead, Channa diplogramma (Perciformes: Channidae) from River Valapattanam, Western Ghats of Kerala, India

Table 1

Morphometric measurements of the Channa diplogramma.

Character	Measurement (mm)	% of Standard Length
Total length	534.1
Standard length	437.1
Head length	145.2	33.2
Head width	85.1	19.5
Head depth	73.6	16.8
Body depth	92.0	21.1
Body width	91.3	20.9
Predorsal length	154.2	35.3
Preanal length	221.1	50.6
Prepectoral length	149.1	34.1
Prepelvic length	155.3	35.5
Dorsal fin base length	282.1	64.5
Anal fin base length	169.1	38.7
Caudal peduncle length	61.1	14.0
Caudal peduncle depth	58.5	13.4
Caudal fin length	97.1	22.2
Orbital diameter	16.1	3.6
Preorbital length	33.2	7.6
Postorbital length	108.9	24.9
Inter orbital width	48.9	11.2
Jaw length	61.2	14.0
Jaw width	54.1	12.4
Gape width	21.1	4.8
Dorsal fin length	36.1	8.2
Pectoral fin length	65.6	15.0
Pectoral fin base length	24.1	5.5
Pelvic fin length	55.1	12.6
Anal fin length	32.1	7.3
Character	Measurement	% of Head length
Head width	85.1	58.6
Head depth	73.6	50.7
Orbital diameter	16.1	11.1
Preorbital length	33.2	22.9
Postorbital length	108.9	75.0
Inter orbital width	48.9	33.7
Jaw length	61.2	42.1
Jaw width	54.1	37.3
Gape width	21.1	14.5