The whistling ducks or tree ducks are a subfamily, Dendrocygninae, of the duck, goose and swan family of birds, Anatidae. In other taxonomic schemes, they are considered a separate family, Dendrocygnidae. Some taxonomists list only one genus, Dendrocygna, which contains eight living species, and one undescribed extinct species from Aitutaki of the Cook Islands, but other taxonomists also list the white-backed duck under the subfamily.
The wandering whistling duck is a species of whistling duck. They inhabit tropical and subtropical Australia, the Philippines, Borneo, Indonesia, Papua New Guinea and the Pacific Islands.
The barred fruiteater is a species of bird in the family Cotingidae, found in Bolivia, Colombia, Ecuador, Peru, and Venezuela. Its natural habitat is subtropical or tropical moist montane forests. The population is stable, and they are considered common.
Pauridiantha arcuata, synonym Stelechantha arcuata, is a species of plant in the family Rubiaceae. It is endemic to Cameroon. Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat loss.
Evarcha arcuata is a species of jumping spiders with a palearctic distribution.
Gryphaea arcuata is an extinct species of foam oyster, a bivalve mollusc in the family Gryphaeidae from the Early Jurassic of Europe.
Corythucha arcuata, the oak lace bug, is a species of Tingidae that is a pest of oaks. It is native to the New World, and was first observed in Europe in 2000.
Drepana arcuata, the arched hooktip or masked birch caterpillar, is a moth of the family Drepanidae. The species was first described by Francis Walker in 1855. It is found from Newfoundland to Vancouver Island, south to at least North Carolina, South Carolina and California.
Simnia arcuata, common name Vidler's simnia, is a species of sea snail, a marine gastropod mollusk in the family Ovulidae, the ovulids, cowry allies or false cowries.
Cassinia arcuata, commonly known as drooping cassinia, biddy bush, Chinese scrub, sifton bush and Chinese shrub, is a species of flowering plant in the family Asteraceae and is endemic to Australia. It is a shrub, sometimes a small tree with sessile, linear leaves, and heads of up to two hundred brownish flowers arranged in pyramid-shaped panicles. In New South Wales, the species is known as Cassinia sifton. In disturbed areas, C. arcuata can become weedy.
Necroraphidia is an extinct genus of snakefly in the family Mesoraphidiidae. The genus is solely known from Early Cretaceous, Albian age, fossil amber found in Spain. Currently the genus comprises a single species, Necroraphidia arcuata.
Homelix is a genus of longhorn beetles of the subfamily Lamiinae, containing the following species:
Luzula arcuata is a species of flowering plant in the rush family Juncaceae with the modern common name curved wood-rush. The plant is native to mountains of northern Europe, north-western and north-eastern Asia and north-western North America.
Homelix morini is a species of beetle in the family Cerambycidae. It was described by Pierre Téocchi in 1999. It is known from Cameroon, the Democratic Republic of the Congo, and the Central African Republic.
Homelix variegata is a species of beetle in the family Cerambycidae. It was described by Karl Jordan in 1894. It is known from the Republic of the Congo, the Democratic Republic of the Congo, and Gabon. It feeds on Coffea canephora.
Homelix albofasciata is a species of beetle in the family Cerambycidae. It was described by James Thomson in 1858, originally spelled as "Homelix albo-fasciata". It is known from Gabon.
Homelix klingi is a species of beetle in the family Cerambycidae. It was described by Kolbe in 1893. It is known from the Central African Republic, Sierra Leone, the Ivory Coast, Kenya, the Democratic Republic of the Congo, Mali, Tanzania, Cameroon, Togo, and Zambia.
Calamovilfa arcuata, commonly known as Cumberland sandreed, is a species of flowering plant in the grass family. It is native to the southeastern United States, where it is found in river scour zones. Due to its specialized habitat, it has a highly localized range, found only on the Cumberland Plateau and in the Ouachita Mountains.
Macracantha is a genus of Asian orb-weaver spiders recognized as containing the species, Macracantha arcuata., although some schemes also recognise inclusion of Gasteracantha hasselti in this genus. Macracantha is notable for the extremely long, curved spines on the abdomens of female members of the genus; Eugène Simon created the taxon name from the Greek words μακρός and ἄκανθα (spine). It occurs from India and China through Southeast Asia to Indonesia.
Petrophile arcuata is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a spreading shrub with cylindrical leaves and oval to spherical heads of hairy yellowish flowers.
