Radiata Lionfish  (Pterois radiata)

R. Lionfish

The fish  Pterois radiata  is known under a long row of different names in English, such as Radiata Lionfish, Radial Firefish, Scorpion radiata, Clearfin Lionfish, Clearfin Turkeyfish, Tailbar Lionfish, White-lined Lionfish, Whitefin Lionfish, and Dragonfish.

Pterois radiata  has not been evaluated for the IUCN Red List of Threatened Species.

Radiata Lionfish is found in the Indo-Pacific. Their range stretches from the Red Sea down to Sodwana Bay in South Africa, and eastwards to the Society Islands in French Polynesia. The northernmost specimens live around the Japanese Ryukyu Islands while the southernmost specimens are found in the waters of New Caledonia.

Radiata Lionfish inhabits lagoon and seaward reefs. They have also been encountered in the surge zone and along rock walls. They are especially fond of rocky reefs and seem to dislike stony corals. They like to hide under ledges and in narrow caves and crevices during the day and have been found down to a depth of 30 meters / 100 feet. The Radiata Lionfish spends the days resting in a hiding spot and the nights hunting for prey.

The largest scientifically measured Radiata Lionfish was 24 cm / 9.4 in.

The Radiata Lionfish has long and flowing feather-like dorsal and pectoral fins and in some specimens the fins are webbed at the based. The body is reddish to brownish and decorated with 5-6 thick dark bars separated by pale lines.

The Radiata Lionfish distinguishes itself from all the other lionfishes by having blank spines. It is also the only member of the genus Pterois without any markings between the vertical fin rays and can be recognized by the pair of horizontal white stripes that decorates the tail. It is sometimes confused with the Antennata Lionfish (Pterois antennata), but the Antennata Lionfish has no horizontal lines on its caudal peduncle.

Info by http://www.aquaticcommunity.com/

Pic by http://blog.seattleaquarium.org/