The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is an inventory of the global conservation status and extinction risk of biological species. A series of Regional Red Lists, which assess the risk of extinction to species within a political management unit, are also produced by countries and organizations.
The conservation status of a group of organisms indicates whether the group still exists and how likely the group is to become extinct in the near future. Many factors are taken into account when assessing conservation status: not simply the number of individuals remaining, but the overall increase or decrease in the population over time, breeding success rates, and known threats. Various systems of conservation status are in use at international, multi-country, national and local levels, as well as for consumer use such as sustainable seafood advisory lists and certification. The two international systems are by the International Union for Conservation of Nature (IUCN) and The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES).
Praealticus is a genus of combtooth blennies found throughout the Pacific and Indian oceans.
Praealticus bilineatus is a species of combtooth blenny found in coral reefs in the western Pacific Ocean.
Praealticus caesius is a species of combtooth blenny found in the western central Pacific ocean. This species grows to a length of 6.7 centimetres (2.6 in) SL.
Praealticus dayi is a species of combtooth blenny found in the eastern Indian Ocean, in the Andaman Islands. The specific name honours the English military doctor and naturalist Francis Day (1829-1889) who was the Inspector-General of Fisheries in India. Day had described this blenny as Salarias alboguttatus in 1876 but this name was preoccupied by Salarias alboguttatus which had been described by Rudolf Kner in 1867.
Praealticus labrovittatus, the crenulate-lipped rockskipper, is a species of combtooth blenny found in the coral reefs in the western Pacific ocean. This species reaches a length of 4.2 centimetres (1.7 in) SL.
Praealticus margaritarius is a species of combtooth blenny found in the northwest Pacific ocean, around Japan. This species grows to a length of 10 centimetres (3.9 in) TL.
Praealticus margaritatus is a species of combtooth blenny found in the eastern central Pacific ocean, around Samoa. This species grows to a length of 5.5 centimetres (2.2 in) SL.
Praealticus multistriatus, the linedfin rockskipper , is a species of combtooth blenny found in the Pacific Ocean, around Tonga.
Praealticus oortii is a species of combtooth blenny found in the eastern Indian Ocean from the Andaman Sea to Timor in the western Pacific. The identity of the person honoured by the specific name of this blenny was not specified but it is thought to be most likely to be the draftsman and illustrator Peter van Oort (1804-1834), who, as part of the Physics Commission for the Dutch East Indies, explored Java which is the type locality of this species.
Praealticus poptae, the Marianas rockskipper, is a species of combtooth blenny found in coral reefs in the western central Pacific ocean, around the Mariana Islands. This species grows to a length of 4.7 centimetres (1.9 in) SL. The specific name honours the Dutch ichthyologist and curator Canna Maria Louise Popta (1860-1929) of the Rijksmuseum van Natuurlijke Historie in Leiden.
Praealticus semicrenatus, the Lembeh rockskipper, is a species of combtooth blenny found in the western central Pacific ocean, around Indonesia.
Praealticus striatus, the striated rockskipper, is a species of combtooth blenny found in the western Pacific ocean, in the South China Sea.
Praealticus tanegasimae is a species of combtooth blenny found in the western Pacific ocean. This species grows to a length of 5.9 centimetres (2.3 in) SL.
There are several species names which are called "triangulus"; "triangulus" is Latin referring to triangles.
Bubalus fudi is an extinct relative of water buffalo, which survived in the late Pleistocene.
Triangulus is a genus of parasitic barnacles in the family Triangulidae, the sole genus of the family. There are at least four described species in Triangulus.
Gubernatoriana triangulus is a species of freshwater crab in the family Gecarcinucidae. The species is endemic to the Western Ghats in India.
