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Species: Citharichthys darwini, Darwin's sanddab

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dark grey-brown with white spots
~6 white blotches along top and bottom body profiles
fins white dots
elongate (depth 39-45% SL)
Galapagos

Citharichthys darwini Victor & Wellington, 2013

Darwin'S Sanddab

Body elongate (depth 39-45% LS); head relatively small 24-29% SL; upper head profile smooth, only a slight notch in front of top eye; eyes on left side, between them very narrow, with a ridge, eyes large, with prominent pupil cover; mouth medium length (upper jaw 31-35% of head length), ends under center of lower eye; blind side jaws not arched; teeth ~ equally developed on both sides of jaws, in 1 series of small, stout, uniform sized immovable teeth on each jaw, along full length of lower jaw, about front ½ of upper jaw; gill rakers slender, moderately long, 4-7 + 8-10 (12-17); dorsal fin rays 72 (70-75); 56 (51-58) anal rays; pectoral small, eye side fin 15-19% SL; base of eye-side pelvic on midline of body; tail fin with straight border; urinary papilla on blind side, immediately behind anus; eye-side lateral line ~ straight, from edge of opercle to tail base; scales rough, medium sized, covering entire body and head except snout, distinctly smaller near edges of body, not easily shed; lateral line with 41-42 pored scales on body & up to 6 more on tail fin base.

Eye-side dark grey brown to blackish with dark scale edges; body with scattered white spots and blotches; ~6 white , pupil-sized spots along top and bottom body profiles; dorsal, anal and tail fins dark, with white dots along fin rays; lateral line begins in a small black spot.

Size: to 5.5 cm.

Habitat: dark sand bottoms.

Depth: 10-25 m.

Known only from the Galapagos.


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Salinity
  • Marine Only
  • Marine
Inshore/Offshore
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom
  • Bottom only
Habitat
  • Soft bottom only
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
  • Sand & gravel
FishBase Habitat
  • Demersal
Feeding Group
  • Carnivore
  • No Data
Diet
  • Bony fishes
  • Mobile benthic worms
  • No Data
  • Mobile benthic crustacea (shrimps/crabs)
Egg Type
  • Pelagic larva
  • Pelagic
  • No data
Global Endemism
  • Tropical Eastern Pacific (TEP) endemic
  • East Pacific endemic
Regional Endemism
  • Island (s) only
  • Island (s)
  • TEP oceanic island (s) endemic
  • Galapagos Islands endemic
  • TEP endemic
Residency
  • Resident
Climate Zone
  • Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
IUCN Red List
  • Not evaluated / Listed
CITES
  • Not listed
Length Max
  • 5.5
Depth Range Min
  • 10
Depth Range Max
  • 25