Species: Myxodagnus sagitta, Arrow sand-stargazer
D IX
Myxodagnus sagitta Myers & Wade, 1946
Arrow sand-stargazer
Body long and slender, tapering to tail; head a pointed cone, lower jaw strongly projecting; eyes not on stalks, usually longer than snout; top and bottom lips with skin flaps 9 (4-12) above, 15 (11-20) below; tubular nostrils; dorsal fin continuous, origin well behind nape over anal origin, VII-X (usually IX), 27-31; anal II, 35 (33-37); pectoral 13 (13-14); lateral line bends down under dorsal spines VI-VIII, usually (88% fish) interrupted near rear angle of arch on 1 or both sides; scales smooth, head and belly scaleless; lateral line scales 49 (46-50).
Pale form: light tan, with scattered small patches of dark pigment, irregular lengthwise streaks along nape & along base of dorsal fin, fins clear. Dark form: tan with dark brown markings; top of head blotched & spotted, nape with series of spots & narrow blotches, a broad stripe along upper back, a broad stripe along lateral line, pelvic & anal pale, other fins mottled with brown.
Size: 7 cm.
Habitat: coastal sandy areas.
Depth: 15-45 m.
Galapagos Islands.
High Resolution Map Download
- Salinity
-
- Marine Only
- Marine
- Inshore/Offshore
-
- Inshore Only
- Inshore
- Water Column Position
-
- Bottom
- Bottom only
- Habitat
-
- Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
- Soft bottom only
- Sand & gravel
- FishBase Habitat
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- Demersal
- Feeding Group
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- Carnivore
- Data
- Diet
-
- Mobile benthic crustacea (shrimps/crabs)
- Mobile benthic worms
- Data
- Mobile benthic gastropods/bivalves
- Bony fishes
- Egg Type
-
- Benthic
- Pelagic larva
- No data
- Global Endemism
-
- All species
- East Pacific endemic
- Tropical Eastern Pacific (TEP) endemic
- Regional Endemism
-
- Island (s)
- Island (s) only
- Galapagos Islands endemic
- All species
- TEP endemic
- TEP oceanic island (s) endemic
- Residency
-
- Resident
- Climate Zone
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- Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
- IUCN Red List
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- Vulnerable
- Listed
- CITES
-
- Not listed
- Length Max
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- 7
- Depth Range Min
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- 15
- Depth Range Max
-
- 45
