Gary Bell/ Oceanwide / Fire Goby (Nemateleotris magnifica), Great Barrier Reef, Queensland, Australia

David Fleetham / Fire Dartfish / Fire Goby (Nemateleotris magnifica) against colourful coral. Fiji's outer reef.

Magnus Lundgren / Wild Wonders of China / Fire dartfish (Nemateleotris magnifica) Green Island, a small volcanic island in the Pacific Ocean , Taiwan

Gary Bell/ Oceanwide / Fire Goby (Nemateleotris magnifica), Great Barrier Reef, Queensland, Australia

Georgette Douwma / Blackfin dartfish (Ptereleotris evides). West Papua, Indonesia. Indo-West Pacific.

Richard Robinson / Twotone dartfish (Ptereleotris evides) juvenile also known as the Blackfin dartfish at Yagasa Lagoon, Lau Island Group, Fiji.

Richard Robinson / Smallscale dartfish (Ptereleotris microlepis) juvenile also known as Blue gudgeon at Ono-i-Lau / Ono-i-Tonga, Lau Island Group, Fiji.

Richard Robinson / Smallscale Dartfish (Ptereleotris microlepis) juvenile and Twotone dartfish (Ptereleotris evides) juvenile, Ono-i-Lau , Lau Island Group, Fiji.

Bert Willaert / Decorated dartfish (Nemateleotris decora). Bismarck Sea - Vitu Islands, West New Britain, Papua New Guinea

Bert Willaert / Fire dartfish (Nemateleotris magnifica) Kimbe Bay, West New Britain, Papua New Guinea

Nature Production / Helfrich's Dartfish (Nemateleotris helfrichi) Chichijima, Ogasawara Islands UNESCO World Heritage Site, Japan

Aflo / Group of three Fire gobies (Nemateloeotris magnifica) swimming, Japan.

Franco Banfi / Red fire dartfish goby (Nemateleotris magnifica) Maldives, Indian Ocean

Fred Bavendam / Filament Dartfish (Ptereleotris hanae) emerging from the burrow of Steinitz' Shrimp Goby (Amblyeleotris steinitzi) and Snapping Shrimp (Alpheus sp), Bali, Indonesia

Fred Bavendam / Fire Goby (Nemateleotris magnifica), Bali, Indonesia

Juergen Freund / Decorated dartfish {Nemateleotris decora} Indo-Pacific

GEORGETTE DOUWMA / Fire goby / dartfish (Nemateleotris magnifica) portrait. Indonesia.

Nature Production / Fire gobies / Fire Dartfish / Orange FireFish {Nemateleotris magnifica} Amami, Kagoshima, Japan

Chris Newbert / Fire Goby (Nemateleotris magnifica) pair, underwater, Fiji

Birgitte Wilms / Fire Goby (Nemateleotris magnifica), 30 feet deep, Solomon Islands

David Fleetham / Fire goby / Dartfish (Nemateleotris magnifica), Fiji.

David Fleetham / Fire dartfish (Nemateleotris magnifica) pair swimming in reef, Yap, Micronesia, Pacific Ocean.

Joel Sartore / Photo Ark / Flagtail dartfish (Ptereleotris uroditaenia) portrait, Omaha's Henry Doorly Zoo & Aquarium. Captive, occurs in Indo-Pacific.

Joel Sartore / Photo Ark / Beautiful dartfish (Ptereleotris kallista) portrait, Omaha's Henry Doorly Zoo and Aquarium. Captive, occurs in western Pacific Ocean.

Doug Perrine / Two Indigo dartfish (Ptereleotris heteroptera) swimming over coral reef rubble, Pebble Beach, South Kona Coast, Big Island, Hawaii, USA, Pacific Ocean.

Alex Mustard / Red fire goby (Nemateleotris magnifica) portrait, South Male Atoll, Maldives, Indian Ocean.

David Fleetham / Spot-tail dartfish / Blacktail goby (Ptereleotris heteroptera) swimming over seabed, Fiji, Pacific Ocean.

David Fleetham / Fire dartfish (Nemateleotris magnifica) in front of Gorgonian fan coral, Yap, Micronesia.

Pascal Kobeh / Two Redfire gobies (Nemateleotris magnifica), Indonesia, Sea of Flores

Georgette Douwma / Fire goby (Nemateleotris magnifica). Derawan Islands, East Kalimantan, Indonesia.