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Dactyloscopus lacteus (Myers and Wade, 1946)
MILKY SAND STARGAZER
Milky sand-stargazer

Life   Vertebrata   Fish   Dactyloscopidae   Dactyloscopus

Dactyloscopus lacteus
© Copyright Photographer/SFTEP, 2002 · 0
Dactyloscopus lacteus

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Dactyloscopus lacteus
© Copyright Photographer/SFTEP, 2002 · 0
Dactyloscopus lacteus
Dactyloscopus lacteus
© Copyright Photographer/SFTEP, 2002 · 0
Dactyloscopus lacteus
espaņol

Overview
Main identification features
  • eyes on stalks;before dorsal fin - 4 free spines
  • dark bars - eye and nape
  • body: 7-9 saddles, 2 stripes,
Head large, flattened above, rounded and narrow at front; both lips with flaps, top lip with 9; eyes on long stalks, without papillae; rear nostril near center of preorbital bone; top lip with 6-12 flaps; dorsal fin origin on nape, before level of upper corner of operculum; dorsal fin with 3 free spines at front, X-XIII, 24-28; anal II, 28-31; pectoral usually 13 rays; lateral line scales 41-45; no scales above arched part of lateral line; notch under end of tail base; tail fin long, rays unbranched.

Inside of mouth unpigmented; body color variable, from pale, almost unmarked fish to strongly colored ones; pale form: large T-shaped pale blotch separating dark bars on nape and through eyes; 7-9 narrow dark saddles along dorsal fin base; flank with two stripes; dorsal, anal and tail shaded with brown; dark blotch at tail base.

Size: 6 cm.

Habitat: coastal sandy areas and tide pools.

Depth: 1-10 m.

Endemic to the Galapagos.


Attributes
Abundance: Common.
Cites: Not listed.
Climate Zone: Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo).
Depth Range Max: 10 m.
Depth Range Min: 1 m.
Diet: mobile benthic worms; mobile benthic gastropods/bivalves; bony fishes; mobile benthic crustacea (shrimps/crabs).
Eastern Pacific Range: Northern limit=2; Southern limit=-2; Western limit=-93; Eastern limit=-90; Latitudinal range=4; Longitudinal range=3.
Egg Type: Benthic; Pelagic larva.
Feeding Group: Carnivore.
FishBase Habitat: Demersal.
Global Endemism: Tropical Eastern Pacific (TEP) endemic; East Pacific endemic; All species.
Habitat: Sand & gravel; Soft bottom (mud, sand,gravel, beach, estuary & mangrove); Soft bottom only.
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 6 cm.
Regional Endemism: Island (s) only; Island (s); TEP endemic; TEP oceanic island (s) endemic; Galapagos Islands endemic; All species.
Residency: Resident.
Salinity: Marine; Marine Only.
Water Column Position: Bottom; Bottom only;


Names
Scientific source:

Links to other sites

References
  • Dawson, C.E., 1975., Studies on eastern Pacific sand stargazers (Pisces: Dactyloscopidae). 2.Genus Dactyloscopus, with descriptions of new species and subspecies., Nat. Hist. Mus. Los Angeles Co. Sci. Bull., 22:1-61.
  • Myers , G.S. and Wade, C.B., 1946., New fishes of the families Dactyloscopidae, Microdesmidae and Antennariidae from the west coast of Mexico and the Galapagos Islands with a brief account of the use of rotenone fish poisons in Ichthyological collecting., Allan Hancock Pacific Expeditions, 9(6):151-179.

Acknowledgements

I thank Ashley MacDonald and John Pickering, University of Georgia, for technical support in building this page.


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Updated: 2024-06-20 04:05:09 gmt
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