Shorefishes of the Greater Caribbean online information system

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Species: Atherinella chagresi, Chagres Silverside

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L shaped furrows on snout separate
D1 origin over A rays 3-6
D2 origin over A rays 13-17
rear edge of jaw turns down, not reaching under eye
teeth on rear palate
gill rakers 20-29
A scale sheath along front 1/3 of base
scales: lateral 40-45, transverse 7-9, around body 21-25

Atherinella chagresi (Meek & Hildebrand in Meek, 1914)

Chagres Silverside

Elongate; sensory pits at front of snout L shaped, those not fused at rear; top jaw extendible, premaxilla with rear end greatly expanded, without expanded bony process above its center, rear edge of mouth curves down, does not reach level of front of eye; teeth on rear of roof of mouth; 20-29 (rarely 19) lower gill rakers; dorsal fin IV, its origin over origin over 3rd-6th (rarely 7th) anal fin soft ray; origin of 2nd dorsal fin over anal rays 13-17; pectoral fins reaching to about middle of pelvic fins, inserted high on body, above mid-level of eye; mid-side scales about 40-45; 7-9 transverse scale rows; 21-25 scales around body circumference; sheath of scales along front 1/3 of base of anal fin; a large scale at base of pelvic fins.

Upper body greenish, lower body pale; silver midlateral band prominent, with bluish reflections, bordered above with black.

Size: reaches 11.5 cm.

Habitat: Primarily freshwater but also in coastal estuaries

Depth: 0-10 m?

SW Caribbean.

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  • Brackish
  • Freshwater
  • Non Marine
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom
  • Mid Water
  • Near Bottom
  • Water column only
  • Sand & gravel
  • Water column
  • Estuary
  • Freshwater
  • Mud
FishBase Habitat
  • Pelagic
Feeding Group
  • Data
  • Omnivore
  • Planktivore
  • Data
  • Benthic microalgae
  • Insects
  • Phytoplankton
Egg Type
  • Benthic
  • Data
  • Pelagic larva
Global Endemism
  • All species
  • Greater Caribbean endemic
  • West Atlantic Endemic
Regional Endemism
  • Caribbean endemic
  • Continent
  • Continent only
  • GC endemic
  • All species
  • Resident
Climate Zone
  • Equatorial (0-10N, Costa Rica / Venezuela)
IUCN Red List
  • Least concern
  • Listed
  • Not listed
Length Max
  • 11.5
Depth Range Min
  • 0
Depth Range Max
  • 10