Morphology Data of Parambassis serrata
Identification keys
Main Ref. Dishma, M. and W. Vishwanath, 2015
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors

Descriptive characteristics of juvenile and adult

Striking features none
Body shape lateral short and / or deep
Cross section
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 terminal
Type of scales

Diagnosis: a faint vertically-elongated brown humeral blotch; posterior margin of most spines of 1st dorsal fin proximally black in colour; absence of predorsal scales; 14−16 dorsal- and anal-fin branched rays; a black longitudinal stripe on ventral surface of caudal peduncle; 17−18 gill rakers on 1st gill arch; 4−9 large serrae on preopercular ridge; and 11 pectoral-fin rays (Ref. 114675).

Description: body laterally compressed; dorsal profile slightly arched from tip of snout to occiput, rising steeply up to 1st dorsal-fin origin, sloping ventrad towards caudal-fin base; ventral profile convex up to posterior end of anal-fin base, then sloping dorsad towards caudal-fin base; eye large, its margin free; gill membranes free from isthmus; 6 branchiostegal rays; 1st branchial arch with 17−18 gill rakers; nasal spine present; preorbital ridge with 3−4 (12) retrose spine-like serrae, partly hidden beneath skin; preorbital edge with 4−8 (12) distinct, exposed serrae projecting ventrally; suborbital ridge not serrated; supraorbital ridge with 3−6 (12) retrorse serrae, partly subdermal; preopercular ridge with 4–9 (12) large serrae; lower edge of preoperculum with 7–14 (12) serrae, posteriormost ones largest; hind margin of preopercular with 10–18 (12) minute denticulations; interoperculum smooth or with 2−7 weakly developed serrae; body covered by scales, except in predorsal region; head naked, except 3−4 (12) scale rows on cheek; lateral line scales 49−53 + 2−3 (12); 6 (12) rows of scales between lateral line and base of last dorsal-fin spine; ½4/1/4½ (12) scale rows across caudal peduncle; 1st dorsal fin with 7 spines, 2nd one longest; 2nd dorsal fin continuous with 1st, with 1 spine and 14−16 (12) branched rays; anal fin with 3 spines, 3rd one longest, and 14−16 (12) branched rays; caudal fin with 1 simple, 8+7 (12) branched rays and 1 simple rays (Ref. 114675).

Coloration: In 10% formalin: head and body background creamish; a faint blackish axial streak on body, darker posteriorly; a small brown dot on each scale on dorsolateral surface of body; a vertically-elongate brown humeral blotch, more or less continuing immediately anterior to 1st dorsal-fin origin; proximal posterior margin of most spines of the 1st dorsal fin blackish; 2nd dorsal fin with scattered melanophores on interradial membrane and bases; pectoral and pelvic fins hyaline; anal fin with scattered melanophores on interradial membrane; ventral surface of caudal peduncle with a black longitudinal stripe; caudal fin with scattered melanophores on rays and base (Ref. 114675).

Ease of Identification

Meristic characteristics of Parambassis serrata

Lateral Lines 1 Interrupted: No
Scales on lateral line 51 - 56
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line 6
Scale rows below lateral line
Scales around caudal peduncle
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total 17 - 18
total 25


Dorsal fin(s)

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

Caudal fin

Attributes forked; more or less normal

Anal fin(s)

Fins number 1
Spines total 3
Soft-rays total 14 - 16

Paired fins

Pectoral Attributes  more or less normal
Soft-rays   11
Pelvics Attributes  more or less normal
Position    thoracic  before origin of D1
Spines     1
Soft-rays   5
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Hennyey, Andrea
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