Randall's Goby Identification Guide
How to recognize this striking orange-and-white striped shrimp goby by its tall dorsal fin and burrow-sharing habit.
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Key identification features
- Slender, elongated goby body rarely more than 3 inches long
- Creamy white to pale ground color crossed by 5-6 bold orange-red diagonal stripes
- Greatly elongated, sail-like first dorsal fin often held erect, tipped in black and yellow
- Large dark eye with a thin blue-edged marking
- Hovers just above the sand near its burrow entrance rather than resting flat on the bottom
Common look-alikes
- Hi Fin Red Banded Goby: has a much taller, flag-like first dorsal spine and fewer, wider red bands; Randall's stripes are more numerous and diagonal rather than banded
- Yellow-nose shrimp goby: lacks the erect sail fin and shows a solid yellow blaze on the snout instead of stripes
- Other Amblyeleotris species: most have muted brown or gray bars rather than vivid orange-red diagonal stripes
Where you'll see one
Found on sand and rubble flats adjacent to coral reefs throughout the Indo-Pacific, typically hovering at the mouth of a shared burrow with a pistol shrimp partner at depths of 10-40 meters.
Frequently asked questions
How can I tell Randall's Goby from other shrimp gobies at a glance?
Look for the combination of diagonal orange-red stripes and a tall, erect first dorsal fin held like a small sail; most other shrimp gobies show plain bars or spots without that raised sail fin.
Why is it always near a small burrow in the sand?
It lives in a mutualistic partnership with a pistol shrimp that digs and maintains the burrow, so seeing the goby hovering over a sandy hole with shrimp activity nearby is itself a strong identification clue.