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Species: Dactylagnus peratikos, the sand-stargazer

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head large, deep
eyes not stalked
D continuous, origin over A origin
lower jaw rounded
both lips: skin flaps

Dactylagnus peratikos Bohlke & Caldwell, 1961

Simple sand-stargazer

Body compressed, tapering to tail; head large, deep, bluntly rounded at front; eyes on top of head, not stalked, without spots or flaps; tubular nostrils; mouth upturned, with a protruding lower jaw, lower jaw rounded when viewed from above; both lips with skin flaps; upper part of operculum with a frill of skin flaps; dorsal and anal fins with long bases; dorsal fin continuous, origin about over anal origin, soft rays 28-30; anal fin segmented rays 33-35; pelvic fins inserted under throat, each with I, 3, rays thickened and free at the tips; lateral line continuous, bends down under 6th-8th dorsal spine, 15-17 scales on arched front part, 32-34 on rear straight part; 1 row of scales above front of lateral line, 2 rows above end of arched part; scales large, smooth, 2-3 rows between apex of lateral line arch and dorsal fin; head and belly scaleless.

Light tan, upper body irregularly spotted and mottled with brown.

Reaches 7.2 cm.

Lives in shallow shoreline waters.

Depth range: 0-5 m.

Costa Rica and Panama.


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Salinity
  • Marine
  • Marine Only
Inshore/Offshore
  • Inshore Only
  • Inshore
Water Column Position
  • Bottom
Habitat
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
  • Soft bottom only
  • Beach
  • Sand & gravel
FishBase Habitat
  • Demersal
Feeding Group
  • Carnivore
  • No Data
Diet
  • Mobile benthic crustacea (shrimps/crabs)
  • Bony fishes
Egg Type
  • Benthic
  • Pelagic larva
  • No data
Global Endemism
  • Greater Caribbean endemic
  • West Atlantic Endemic
Regional Endemism
  • Caribbean endemic
  • Continent
  • Continent only
  • GC endemic
Residency
  • Resident
Climate Zone
  • Equatorial (0-10N, Costa Rica / Venezuela)
IUCN Red List
  • Listed
  • Data deficient
CITES
  • Not listed
Length Max
  • 7.2
Depth Range Min
  • 0
Depth Range Max
  • 5