Austin Hobart Clark (December 17, 1880 in Wellesley, Massachusetts – October 28, 1954 in Washington, D.C.) was an American zoologist who studied oceanography, marine biology, ornithology and entomology.
Heliaster solaris commonly known as 24-rayed sunstar is a possibly extinct sea star which was known from the waters near Española Island in the Galápagos Islands. The species was endemic to the Galápagos Island group, where it appears to have been...
Metacrinus zonatus is a sea lily from the Isocrinidae family. The scientific name of the species was published in 1908 by Austin Hobart Clark.
Astropyga magnifica is a species of sea urchin of the family Diadematidae. In life, their test is covered with spines. Astropyga magnifica was first scientifically described in 1934 by Austin Hobart Clark.
The monarch butterfly or simply monarch (Danaus plexippus) is a milkweed butterfly (subfamily Danainae) in the family Nymphalidae. Other common names, depending on region, include milkweed, common tiger, wanderer, and black-veined brown. It is among...
The mulga parrot (Psephotellus varius) is endemic to arid scrublands and lightly timbered grasslands in the interior of southern Australia. The male mulga parrot is multicolored, from which the older common name of many-coloured parrot is derived.
Bathycrinus australis is a species of sea lily, a crinoid in the family Bathycrinidae. It is native to deep water in the Antarctic Ocean. It was initially identified as Bathycrinus aldrichianus by Philip Herbert Carpenter following the 1872-1876 HMS...
The Dominican green-and-yellow macaw (Ara atwoodi), Atwood's macaw or Dominican macaw, is a hypothetical species of macaw that may have lived on the island of Dominica. It is known only through the writings of British colonial judge Thomas Atwood in...
The Martinique amazon (Amazona martinicana) is a hypothetical extinct species of Caribbean parrot in the family Psittacidae. It is not known from any material remains, but was said to be similar to the red-necked amazon (A. arausiaca) from Dominica,...
Annametra is a genus of crinoids in the family Antedonidae, subfamily Antedoninae (Norman, 1865), first described by Clark, A. H. in 1936.
