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Species: Menidia beryllina, Inland silverside

All Families:   All Genera:   All Species:

D origin before anus
D2 usually 9
distance D1 to A < 7% (1.2-8.3 %) SL
has both sexes
A 15-19

Menidia beryllina (Cope, 1867)

Inland silverside

Slender, elongate, compressed; eye large; snout shorter than eye, without pits, pores or tubes on top; top jaw extendible, premaxilla with rear end greatly expanded, without expanded bony process above its center; teeth well developed, in bands; first dorsal IV-VI, origin before anus; soft dorsal usually 9 rays; horizontal distance between 1st dorsal and anal usually <7% of SL; anal fin I, 15-19, its margin strongly concave; pelvics inserted nearer pectoral base than anal origin; scales without scalloped edges;  lateral scales 37-41.

Yellow to olive above lateral stripe, this area crosshatched with dark lines in fish from clear water; pale yellow to translucent below stripe.

Reaches 10 cm.

Shallow coastal areas, estuaries and inland waterways.

Depth range: 0-30 m.

Massachusetts to the Gulf of Mexico.

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  • Freshwater
  • Marine
  • Brackish
  • Inshore Only
  • Inshore
Water Column Position
  • Surface
  • Near Surface
  • Mid Water
  • Water column only
  • Freshwater
  • Estuary
  • Water column
FishBase Habitat
  • Pelagic
Feeding Group
  • Planktivore
  • Data
  • Carnivore
  • Data
  • Mobile benthic crustacea (shrimps/crabs)
  • Zooplankton
  • Insects
Egg Type
  • Benthic
  • Pelagic larva
  • Data
Global Endemism
  • All species.
  • West Atlantic Endemic
  • Greater Caribbean non-endemic
Regional Endemism
  • Continent
  • GC non-endemic
  • Extends North of GC
  • All species..
  • Continent only
  • Resident
Climate Zone
  • Subtropical (23-35N, Florida / Carolinas / Bermuda)
  • Temperate (>35N)
IUCN Red List
  • Listed
  • Least concern
  • Not listed
Length Max
  • 10
Depth Range Min
  • 0
Depth Range Max
  • 30