Morphology Data of Megalaspis cordyla
Identification keys
Main Ref. Randall, J.E., G.R. Allen and R.C. Steene, 1990
Appearance refers to Male; Female
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors

Descriptive characteristics of juvenile and adult

Striking features
Body shape lateral fusiform / normal
Cross section compressed
Dorsal head profile more or less straight
Type of eyes eyes with fixed fatty (adipose) tissue/eyelids
Type of mouth/snout more or less normal
Position of mouth terminal
Type of scales cycloid scales

Description: Bluish grey to green dorsally; shading to silvery on side and belly; dark fins. Opercle with large black spot on upper rear edge (Ref. 2334). Body elongate and subcylindrical, slightly compressed; caudal peduncle strongly compressed with distinct median keel; breast scaleless ventrally (Ref. 90102). LL scutes 51-59, strong and very large. Anal fin with 2 detached spines (Ref. 2334). Numerous dorsal and anal finlets are distinct (Ref. 37816). Adipose eyelid completely covering eye except for vertical slit at middle of pupil (Ref. 90102).

Ease of Identification

Meristic characteristics of Megalaspis cordyla

Lateral Lines 1 Interrupted: No
Scales on lateral line 21 - 28
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 18 - 22
on upper limb 8 - 11
total 26 - 33


Dorsal fin(s)

Attributes no striking attributes
Fins number 2
Finlets No. Dorsal   7 - 9
Ventral  8 - 10
Spines total 9 - 9
Soft-rays total 18 - 20
Adipose fin absent

Caudal fin

Attributes forked; more or less normal

Anal fin(s)

Fins number 2
Spines total 3 - 3
Soft-rays total 16 - 17

Paired fins

Pectoral Attributes  more or less normal
Pelvics Attributes  more or less normal
Position    thoracic  before origin of D1
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Capuli, Estelita Emily
Modified by Olisa, Kristine Elaine Paz
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