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

Magnus Lundgren / Wild Wonders of China / Yellow prawn-goby (Cryptocentrus cinctus) Sharp Island or Kiu Tsui Chau, Kiu Tsui Country Park located at Port Shelter of Sai Kung, Hong Kong, China.

Magnus Lundgren / Wild Wonders of China / Yellow prawn-goby (Cryptocentrus cinctus) Sharp Island or Kiu Tsui Chau, Kiu Tsui Country Park located at Port Shelter of Sai Kung, Hong Kong, China.

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...

Tony Wu / Yellow shrimp goby (Cryptocentrus cinctus) Waga Waga in Milne Bay, Papua New Guinea

Franco Banfi / Banded shrimpgoby (Cryptocentrus cinctus) sharing burrow with Alpheus shrimp (Apheus sp) Cendana Jetty, Waigeo island, Raja Ampat, Irian Jaya, West Papua, Indonesia, Pacific Ocean

Juergen Freund / Banded shrimp goby (Cryptocentrus cinctus) yellow morph with snapping shrimp partner (Alpheus sp.) Papua New Guinea.

Juergen Freund / Banded shrimp goby (Cryptocentrus cinctus) yellow morph, Papua New Guinea.

Fred Bavendam / Yellow Shrimp Goby (Cryptocentrus cinctus) sharing a burrow with a Snapping Shrimp (Alpheus sp), Menjangan Island, Indonesia

GEORGETTE DOUWMA / Banded prawn goby pair {Cryptocentrus cinctus} with blind Alpeid shrimp at entrance to burrow. Shrimps maintain the burrow while Gobies act as lookout.

GEORGETTE DOUWMA / Banded prawn goby fish pair {Cryptocentrus cinctus} with alpeid shrimps, Borneo. Gobies live in burrow with blind prawn. Prawns maintain the burrow while Gobies act as lookout.

Frederique Olivier / Watchman goby (Cryptocentrus cinctus) and alpheid shrimp mutualism, the goby keeps watch while the shrimps dig and clean a shared burrow in the sand, Uepi Island, Solomon Islands.