Parapterois

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Parapterois
SetoMK.jpg
Parapterois heterura, blackfoot firefish
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Scorpaeniformes
Family: Scorpaenidae
Subfamily: Pteroinae
Genus: Parapterois
Bleeker, 1876
Type species
Pterois heterura
Bleeker, 1856

Parapterois is a genus of venomous fish in the scorpionfish family.[1] These fish originate from marine environments in the Indian Ocean or near it. The venomous Parapterois heterura is occasionally seen as an aquarium fish.

Species[edit]

There are currently two recognized species in this genus:[1]


Anatomy and appearance[edit]

Parapterois heterura resting on the substrate

Parapterois bodies are red and white, and their pectoral fins are expanded. These fish are venomous. However, most specimens are much smaller; larger adults of both species are about 11 centimetres (4 in) in length.[2]

A number of differences set this genus apart from Pterois, in which P. heterura was first described to. Parapterois have more (18-21) pectoral fin rays than Pterois (12-17), and, in the former, these rays may be branched, while they are never branched in Pterois. Parapterois have two anal fin spines, while Pterois have three. Also, as a more obvious trait, the caudal fin of these fish are truncated with longer upper and lower caudal fin rays, while the caudal fin in Pterois is rounded.[2]

Distribution and habitat[edit]

Parapterois heterura showing the inner surface of its pectoral fins.

Parapterois are native to the Indian Ocean and the West Pacific Ocean.

In the aquarium[edit]

Despite the popularity of other lionfish, Parapterois species are only rarely found in the aquarium trade.[3] P. heterura can be found on certain online marine aquarium fish stores, but is not common.

References[edit]

  1. ^ a b Froese, Rainer, and Daniel Pauly, eds. (2012). Species of Parapterois in FishBase. December 2012 version.
  2. ^ a b Motomura, Hiroyuki (2004). "Morphological Comparison of a Poorly Known Scorpionfish, Parapterois macrura, with a Related Species, P. heterura (Scorpaenidae: Pteroinae)" (PDF). Zoological Studies. 43: 1–7. 
  3. ^ Fenner, Bob. "The Scorpionfishes We Call Lions, Family Scorpaenidae, subfamily Pteroinae". Retrieved 2007-04-09.