Morphology Data of Encrasicholina devisi
Identification keys
Abnormalities
Main Ref. Whitehead, P.J.P., G.J. Nelson and T. Wongratana, 1988
Appearance refers to
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 elongated
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 cycloid scales
Diagnosis

Diagnosis: Body rather cylindrical, belly rounded, with 5-6, rarely 3 or 4, sharp needle-like pre-pelvic scutes; maxilla tip pointed, projecting beyond second supra-maxilla and reaching to sub-operculum; isthmus short, preceded by a small bony plate on urohyal between branchial membranes; lower gillrakers 20-27; unbranched dorsal and anal finrays 3, anal fin short, with usually 15-17 branched finrays; in life, a bright silver band on flank, with a thin blue line above, back blue/grey (Ref. 189). It closely resembles Encrasicholina heteroloba, which has only 2 unbranched dorsal and anal finrays, a dull silver/grey band on flank, and the back beige; Encrasicholina oligobranchus has only 17-18 gillrakers; other species of Encrasicholina have a fleshy urohyal plate and a maxilla tip blunt and not projecting beyond the second supra-maxilla; species of Stolephorus have a long isthmus reaching to the margin of the branchial membrane (Ref. 189).

Description: Body rather cylindrical, belly rounded (Ref. 189). Snout prominent; tip of maxilla pointed (Ref. 2871, 30573). A small silvery plate in front of isthmus (Ref. 2871). Number of gill rakers on upper limb 19-21 and on lower limb 20-27 (Ref. 189, 122132). With 3 unbranched dorsal- and anal-fin rays; anal fin origin behind base of last dorsal-fin ray (Ref. 30573). With 3-6 sharp needle-like pre-pelvic scutes, no post-pelvic scutes (Ref. 189, 30573).

Colouration: In life, a bright silver band on flank, with a thin blue line above, back blue/grey (Ref. 189, 30573). A small silvery plate in front of isthmus (Ref. 30573).

Ease of Identification

Meristic characteristics of Encrasicholina devisi

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 0
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 20 - 27
on upper limb 19 - 21
total
Vertebrae
preanal
total

Fins

Dorsal fin(s)

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

Caudal fin

Attributes forked; more or less normal

Anal fin(s)

Fins number 1
Spines total 0 - 0
Soft-rays total 18 - 20

Paired fins

Pectoral Attributes  more or less normal
Spines     
Soft-rays   
Pelvics Attributes  more or less normal
Position    abdominal  before origin of D1
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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cfm script by eagbayani, 17.10.00, php script by rolavides, 13/03/08 ,  last modified by sortiz, 06.27.17