Shorefishes of the Eastern Pacific online information system

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Species: Umbrina dorsalis, Long-fin drum, Longfin croaker

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dark stripes on scale rows
inside gill chamber pale
D X + I, 28-33
C: slightly concave
snout very short
A: 7-8; 2nd spine thick, 3/4 1st ray

Umbrina dorsalis Gill, 1862

Longfin croaker, Long-fin drum

Body oblong, somewhat compressed, lower profile ~ horizontal; back high, arched; head low, broad, conical; snout < eye; mouth ~ horizontal, under projecting snout; chin with 1 short, thick rigid barbel with a pore at its tip, and 2 pairs of pores beside its base; teeth in bands on each jaw, outer row on top jaw larger; 20 (18-25) gill rakers; preopercle finely serrated; dorsal fin with a deep notch, X + I, 31 (28-33), spines slender, second dorsal long base; anal small, II, 7 (7-8) rays, 2nd  spine thick, ¾ length of 1st  ray; pectoral short, not reaching tip of pelvic, 16 (15-17) rays; tail edge straight to slightly concave; scales rough on head and body, smooth on fins; bases of soft dorsal and anal fins with scaly sheath; lateral line scales 50-53.

Back blue-grey, silvery below; sides of body with indistinct, oblique dark lines along scale rows; inside gill chamber pale to lightly dotted; dorsal dark, pale line along middle; tail dark; anal pale base, dark outer margin, sometimes yellow tint; pectoral dark; pelvics yellow-brown; juveniles lack stripes, larger ones with 5-8 wide dark saddles on back.

Size: 35 cm.

Habitat: coastal sandy shores and bays, lagoons.

Depth: 1-20 m.

Central Baja to the mouth of the Gulf of California to northern Peru.

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  • Marine Only
  • Marine
  • Inshore Only
  • Inshore
Water Column Position
  • Bottom
  • Near Bottom
  • Bottom + water column
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
  • Sand & gravel
  • Soft bottom only
  • Water column
FishBase Habitat
  • Bentho-Pelagic
Feeding Group
  • Carnivore
  • Data
  • Mobile benthic gastropods/bivalves
  • Mobile benthic worms
  • Data
  • Mobile benthic crustacea (shrimps/crabs)
Egg Type
  • No data
  • Pelagic
  • Pelagic larva
Global Endemism
  • All species
  • East Pacific endemic
  • Tropical Eastern Pacific (TEP) endemic
Regional Endemism
  • All species
  • 3 provinces (Cortez + Mexican + Panamic) endemic
  • Continental TEP endemic
  • TEP endemic
  • Continent only
  • Continent
  • Resident
Climate Zone
  • Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
  • Northern Subtropical (Cortez Province + Sinaloan Gap)
  • North Temperate (Californian Province &/or Northern Gulf of California)
  • Northern Tropical (Mexican Province to Nicaragua + Revillagigedos)
IUCN Red List
  • Least concern
  • Listed
  • Not listed
Length Max
  • 35
Depth Range Min
  • 1
Depth Range Max
  • 20