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Species: Stellifer walkeri, Profesor stardrum

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head firm
mouth large, oblique
preopercle 2 spines
36-38 gill rakers
pectoral reaches anus
A 9

Stellifer walkeri Chao, 2001

Profesor stardrum

Body oblong, deep, compressed; head large, broad, deep, triangular; skull cavernous, translucent, firm to touch, wide and arched between eyes; eye moderate (~ 21% of head length); snout blunt, slightly projecting beyond upper jaw; mouth opens under tip of snout, strongly oblique, large; teeth in villiform bands, those in outer row of upper jaw enlarged; chin with 4 pores, a small knob at front, no barbells; snout with 8 pores; margin of preopercle with 2 strong slender spines; gill rakers long and slender, 36-38; dorsal rays X-XI + II, 21-24, deep notch between spiny and soft parts of dorsal fin; anal fin with short base II, 9, 2nd  spine strong, ¾ length of 1st  ray; pectorals long, pointed, reach level of anus; pelvic fins without a filament; tail margin rounded or with a short, blunt point; scales rough on body, smooth on head, and between lateral line and dorsal fin and on fins; rows scales between lateral line and dorsal origin; soft dorsal and anal fins covered with smooth scales; lateral line pores 48-50.

Preserved fish: Body uniform yellowish-silver, nape and top of back finely stippled with brown, larger dots on sides; dark blotch at upper corner of opercle; lower half of eye with dark rim; top of front 1/3 of top lip dark; inside mouth & tongue pale; tip of spiny dorsal dark, of soft dorsal less dark; tail dusky, anal pale; lining of gut cavity silver.

Size: 17 cm.

Habitat: mud and sand bottom.

Depth: 3- 15 m.

Known from Nayarit to Guerrero, central Mexico.


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Salinity
  • Brackish
  • Marine
Inshore/Offshore
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom only
  • Bottom
Habitat
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
  • Soft bottom only
  • Mud
  • Estuary
  • Sand & gravel
FishBase Habitat
  • Demersal
Feeding Group
  • No Data
  • Planktivore
Diet
  • Pelagic fish eggs
  • No Data
  • Zooplankton
  • Pelagic fish larvae
Egg Type
  • Pelagic
  • No data
  • Pelagic larva
Global Endemism
  • Tropical Eastern Pacific (TEP) endemic
  • East Pacific endemic
  • All species
Regional Endemism
  • Continent only
  • TEP endemic
  • All species
  • Continent
  • Mexican province endemic
  • Continental TEP endemic
Residency
  • Resident
Climate Zone
  • Northern Tropical (Mexican Province to Nicaragua + Revillagigedos)
IUCN Red List
  • Data deficient
  • Listed
CITES
  • Not listed
Depth Range Min
  • 3
Depth Range Max
  • 15
Length Max
  • 17