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Aulopiformes - Paralepididae

Magnisudis atlantica (Duckbill Barracudina)

Illustration Meristics Life History ELH Descr. Distribution Footnotes
More information for this taxon at: LarvalBase | FishBase | Univ. Washington Data


Egg Diameter (min-max in mm):
Number of Oil Globules (min-max):
Oil Globule Diameter (min-max in mm):
Egg/Embryo Pigment:
Pigment Diagnostics:
Diagnostic Characters:


Hatch Size (min-max in mm SL): <8.5 mm4
Preanal Length (%SL): 35 - 38, increasing to 67 - 72 with development
Flexion Length (in mm SL): ~8.5 - 10.5
Length at Transformation (in mm SL): ~23 - 47, gradual
Fin Development Sequence: Principal caudal, anal, dorsal, pectorals, procurrent caudal, pelvics, adipose
Larval Pigment Regions: In each developmental larval stage, pigment is present in the regions listed below
(click for pigment regions)
Preflexion: dorsal gut, lateral gut,
Flexion: dorsal gut, lateral gut,
Postflexion: mouth, crown, nape, dorsal gut, lateral gut, dorsal, ventral, mediolateral,
Juvenile: mouth, crown, nape, dorsal gut, lateral gut, dorsal, ventral, mediolateral, caudal,
Pigment Diagnostics: One peritoneal patch increasing to three in transforming/juvenile stage
Diagnostic Characters: Snout is approximately 50% of head length. Distinguished from Arctozenus risso by: vertebral number (60-69). Distinguished from other paralepidids by: highest number of pectoral rays (15-18), fewest anal rays (20-24), 1 peritoneal patch increasing to 2 by flexion stage and increasing to 3 by juvenile stage, anus at final position (64-72% SL) by 13-15 mm SL

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last updated: August 2019