Fred Bavendam / Goby (Amblyeleotris sp) keeping watch while a Snapping Shrimp (Alpheus randalli) excavates their shared burrow, Bali, Indonesia

Fred Bavendam / Brown Snapping Shrimp (Alpheus armatus) on coral, Bonaire, Netherland Antilles, Caribbean

David Hall / Yellow prawn-goby (Cryptocentrus cinctus) and Snapping shrimp (Alpheus sp). Mutualistic symbiosis with goby as watchdog and shrimp maintaining burrow. Komodo, Indonesia.

David Hall / Arcfin shrimpgoby (Amblyeleotris arcupinna) and Snapping shrimp (Alpheus sp), blind shrimp maintaining contact with goby via antenna. Mutualism with shrimp maintaining burrow and goby acting as lookou...

Georgette Douwma / Striped snapping shrimp (Synalpheus striatus) (Synalpheus stimpsoni) living on crinoids. West Papua, Indonesia. Indo-West Pacific.

David Fleetham / Steinitz' prawn / shrimp goby (Amblyeleotris steinitzi) and Alpheid worker shrimp (Alpheus sp) side by side. Mutualism occurs between the two species, the blind shrimp maintaining the shared burro...

David Fleetham / Yellow Shrimp / Banded Prawn Goby (Cryptocentrus cinctus) lives with this blind snapping shrimp (Alpheus sp.) who is excavating their den. As pictured here, the shrimp always keeps an antennae touchin...

Constantinos Petrinos / Striped snapping shrimp (Synalpheus striatus) mating pair on host Crinoid. Lembeh Strait, North Sulawesi, Indonesia.

Constantinos Petrinos / Mosaic-fin Shrimp Goby (Flabelligobius sp.) living in association with Red Banded Alpheid Shrimp (Alpheus randalli) Lembeh Strait, North Sulawesi, Indonesia.

Constantinos Petrinos / Yellow-snout shrimp goby (Stonogobiops xanthorhinica) with the symbiotic Red Banded Alpheid Shrimp (Alpheus randalli) Lembeh Strait, North Sulawesi, Indonesia.

Constantinos Petrinos / Snapping shrimp (Alpheus frontalis) on sand. Lembeh Strait, North Sulawesi, Indonesia.

Tony Wu / Snapping shrimp (Alpheus frontalis) infected with a Rhizocephalan parasite, possibly (Thompsonia sp.) Lembeh Strait, North Sulawesi, Indonesia.