Species: Umbrina dorsalis, Long-fin drum, Longfin croaker
inside gill chamber pale
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.
High Resolution Map Download
- Salinity
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- Marine Only
- Marine
- Inshore/Offshore
-
- Inshore Only
- Inshore
- Water Column Position
-
- Bottom
- Near Bottom
- Bottom + water column
- Habitat
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- Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
- Sand & gravel
- Soft bottom only
- Water column
- FishBase Habitat
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- Bentho-Pelagic
- Feeding Group
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- Carnivore
- Data
- Diet
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- Mobile benthic gastropods/bivalves
- Mobile benthic worms
- Data
- Mobile benthic crustacea (shrimps/crabs)
- Egg Type
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- No data
- Pelagic
- Pelagic larva
- Global Endemism
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- All species
- East Pacific endemic
- Tropical Eastern Pacific (TEP) endemic
- Regional Endemism
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- All species
- 3 provinces (Cortez + Mexican + Panamic) endemic
- Continental TEP endemic
- TEP endemic
- Continent only
- Continent
- Residency
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- Resident
- Climate Zone
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- 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
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- Least concern
- Listed
- CITES
-
- Not listed
- Length Max
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- 35
- Depth Range Min
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- 1
- Depth Range Max
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- 20
