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Species: Stellifer oscitans, Yawning stardrum

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head firm
nape scales smooth
pectoral bronze
C: blunt point
roof of mouth dark
chin: 6 pores
preopercle: 2 strong spines
gill rakers 45-52
pectoral reaches anus

Stellifer oscitans (Jordan & Gilbert, 1882)

Yawning stardrum

Body oblong, compressed; head large, broad, skull cavernous, translucent, but not spongy to touch, wide between eyes; snout blunt, barely or not projecting beyond upper jaw; mouth opens at front, strongly oblique; teeth in villiform bands, those in outer row of upper jaw enlarged; chin with 6 pores, central pair separated by a bony crest, no barbells; snout with 8 pores; margin of preopercle with 2 strong spines, lower one directed down and back; gill rakers long and slender, 42-52; dorsal rays IX-X + II-III, 21-25, deep notch between spiny and soft parts of dorsal fin; anal fin with short base II, 8 (8-9), 2nd  spine strong, longer than 1st  ray; pectorals long, pointed, reach past anus; pelvic fins without a filament; tail margin with a short, blunt point; scales rough on body, smooth on head, breast, before front of dorsal fin and fins; soft dorsal and anal fins covered with smooth scales; lateral line pores 47-52.

Silvery, greyish above, a bronze sheen on lower half of body; roof of mouth dark; fins dusky grey, except pectorals bronze.

Size: reaches 25 cm.

Inhabits coastal waters, abundant in estuaries.

Depth: 1-30 m?

El Salvador to Ecuador.


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Salinity
  • Marine
  • Brackish
Inshore/Offshore
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom
  • Bottom only
Habitat
  • Estuary
  • Soft bottom only
  • Sand & gravel
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
FishBase Habitat
  • Demersal
Feeding Group
  • Carnivore
  • Planktivore
  • No Data
Diet
  • Pelagic fish eggs
  • Bony fishes
  • No Data
  • Zooplankton
  • Pelagic fish larvae
Egg Type
  • Pelagic larva
  • Pelagic
  • No data
Global Endemism
  • East Pacific endemic
  • All species
  • Tropical Eastern Pacific (TEP) endemic
Regional Endemism
  • Continent
  • TEP endemic
  • Continent only
  • Continental TEP endemic
  • All species
  • Panamic province endemic
Residency
  • Resident
Climate Zone
  • Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
IUCN Red List
  • Least concern
  • Listed
CITES
  • Not listed
Length Max
  • 25
Depth Range Min
  • 1
Depth Range Max
  • 30