Morphology Data of Stolephorus holodon
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 compressed
Dorsal head profile clearly convex
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 somewhat compressed, belly with 6-8 small needle-like pre-pelvic scutes, no post-pelvic scutes; maxilla tip pointed, reaching to or beyond hind border of pre-operculum, the latter concave, indented near maxilla tip; lower gillrakers 24-29; anal fin short, usually with 3 unbranched and 17-20 branched finrays, its origin below about middle of dorsal fin base (Ref. 189, 5430). Of similar species in its distribution area, Stolephorus indicus is round-bodied and has a shorter maxilla, not to hind border of pre-operculum; and Encrasicholina punctifer has the anal fin origin behind the dorsal fin base (Ref. 189).

Description: Body somewhat compressed; depth of body 5.0-5.5 times in total length; head length 23-26% of standard length (Ref. 1881, 5430, 122132). Snout pointed, strongly projecting, shorter than the eye; eye diameter 3 times in head length; teeth present in both jaws, minute; maxillary tapering behind, extending to the gill-opening (Ref. 1881, 5430). Lower gill rakers 24-29; upper gill rakers 17-22 (Ref. 5430, 122132). Dorsal fin with 3 unbranched and 12-14 branched rays, originating a little nearer root of caudal fin than end of snout; anal fin with 3 unbranched and 17-20 branched rays, originating below middle of dorsal fin; pectoral fin with 1 unbranched and 11-13 branched rays; pelvic fin with 1 unbranched and 6 branched rays; caudal fin deeply forked (Ref. 189, 1881, 5430). Caudal peduncle twice as long as deep (Ref. 1881). Scales: 38-42 scales in a longitudinal series, 9 in a transverse series (Ref. 1881, 5430). Pre-pelvic scutes 6-8, no post-pelvic scutes (Ref. 5430).

Colouration: A silvery lateral stripe is present along flanks (Ref. 1881, 5430).

Ease of Identification

Meristic characteristics of Stolephorus holodon

Lateral Lines Interrupted: No
Scales on lateral line 38 - 42
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 24 - 29
on upper limb 17 - 22
total
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   
Ventral  
Spines total 0 - 0
Soft-rays total 15 - 17
Adipose fin absent

Caudal fin

Attributes forked; more or less normal

Anal fin(s)

Fins number 1
Spines total 0 - 0
Soft-rays total 20 - 23

Paired fins

Pectoral Attributes  more or less normal
Spines     0
Soft-rays   12 - 14
Pelvics Attributes  more or less normal
Position    abdominal  before origin of D1
Spines     0
Soft-rays   7 - 7
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Binohlan, Crispina B.
Modified by Boden, Gert
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