Shorefishes of the Eastern Pacific online information system

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Species: Cynoscion phoxocephalus, Cachema weakfish, Sharp-nose weakfish, Sharpnose corvina

All Families:   All Genera:   All Species:

head pointed
mouth v oblique, opens above mid-eye level
gill rakers short
pectoral < pelvic
all scales smooth
D2 & A not scaled

Cynoscion phoxocephalus Jordan & Gilbert, 1882

Sharpnose corvina, Cachema weakfish, Sharp-nose weakfish

Elongate, compressed, oval cross-section; head pointed, nape profile straight; mouth strongly oblique, opens above mid-eye level, upper jaw not reaching level of rear margin of eye, lower jaw projecting; front of top jaws with 1 pair of large pointed canines; no barbels or pores on chin; 7-8 lower gill rakers, gill rakers shorter than gill filaments in center of gill arch; margin of preopercle smooth; dorsal with long base, no gap separating the two parts, IX-X + I, 20-22; anal II, 10; pectoral fins 16-17, short, end well before pelvic tip; rear margin of tail ~ straight; all scales smooth; anal & soft dorsal fins without a scaly sheath; lateral line straight slightly arched anteriorly; 60-70 scales on lateral line; lateral line scales enlarged, with small accessory scales.

Color silvery, bluish grey on upper back; dorsal and caudal fins dusky, other fins whitish; axil of pectoral fin blackish.

Size: to 60 cm.

Inhabits coastal waters; juveniles enter river mouths and shallow. estuaries.

Depth: 1-30 m.

SE Gulf of California to Peru; vagrant in the Galapagos.


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Salinity
  • Marine
  • Brackish
Inshore/Offshore
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom
  • Bottom + water column
  • Mid Water
  • Near Bottom
Habitat
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
  • Sand & gravel
  • Estuary
  • Water column
FishBase Habitat
  • Demersal
Feeding Group
  • Carnivore
  • Data
Diet
  • Mobile benthic crustacea (shrimps/crabs)
  • Data
  • Octopus/squid/cuttlefish
  • Bony fishes
Egg Type
  • Pelagic larva
  • Pelagic
  • No data
Global Endemism
  • All species
  • Tropical Eastern Pacific (TEP) endemic
  • East Pacific endemic
Regional Endemism
  • Island (s)
  • All species
  • Continent
  • TEP endemic
  • Continent + Island (s)
Residency
  • Resident
Climate Zone
  • South Temperate (Peruvian Province )
  • Northern Tropical (Mexican Province to Nicaragua + Revillagigedos)
  • Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
  • Northern Subtropical (Cortez Province + Sinaloan Gap)
IUCN Red List
  • Least concern
  • Listed
CITES
  • Not listed
Length Max
  • 60
Depth Range Min
  • 1
Depth Range Max
  • 30