The Corduliidae, also knowns as the emeralds, emerald dragonflies or green-eyed skimmers, is a family of dragonflies. These dragonflies are usually black or dark brown with areas of metallic green or yellow, and most of them have large, emerald-green eyes. The larvae are black, hairy-looking, and usually semiaquatic. This family include species called "baskettails", "emeralds", "sundragons", "shadowdragons", and "boghaunters". They are not uncommon and are found nearly worldwide, but some individual species are quite rare. Hine's emerald dragonfly, for example, is an endangered species in the United States.
The Gauss expedition of 1901–1903 was the first German expedition to Antarctica. It was led by geologist Erich von Drygalski in the ship Gauss, named after the mathematician and physicist Carl Friedrich Gauss.
Dendyidae is a family of calcareous sponges, which contains thirteen species in two genera.
Leucosolenia is a genus of calcareous sponges belonging to the family Leucosoleniidae. Species of this genus usually appear as groups of curved vases, up to 2 cm long, each ending in an osculum. The overall shape is sometimes likened to a tiny bunch of bananas. They are most often observed in tide pools, clustered around the base of seaweeds or on rocks, and occur in a variety of colours, usually rather pale. Its canal system is of asconoid type. The colony consists of few simple vase-like, cylindrical individuals each terminating in an osculum and united at their bases by irregular horizontal tubes. Leucosolenia reproduces both asexually and sexually. asexual reproduction by budding and sexual reproduction takes place by formation of gametes, i.e., ova and sperms. Lecosolenia is hermaphrodite, because both the gametes are formed in the body of same individual.
Leucandra is a genus of calcareous sponge belonging to the family Grantiidae. Its earliest known fossils are from the Jurassic.
Rivula everta is a moth of the family Erebidae first described by Charles Swinhoe in 1901. It is found in Australia in Queensland and the Northern Territory.
Suberites is a genus of sea sponges in the family Suberitidae. Sponges, known scientifically as Porifera, are the oldest metazoans and are used to elucidate the basics of multicellular evolution. These living fossils are ideal for studying the principal features of metazoans, such as extracellular matrix interactions, signal-receptor systems, nervous or sensory systems, and primitive immune systems. Thus, sponges are useful tools with which to study early animal evolution. They appeared approximately 580 million years ago.
Ernst Vanhöffen was a German zoologist.
Guancha apicalis was thought to be a species of calcareous sponge in the genus Guancha from Antarctica. It actually never existed.
Gelliodes is a genus of sponges in the family Niphatidae.
Ooperipatus is a genus of Australian velvet worms in the Peripatopsidae family.
Robert J. Lendlmayer von Lendenfeld (1858-1913) was an Austrian zoologist, alpinist, and traveler. He was also a notable spongiologist.
Ooperipatus hispidus is a species of velvet worm in the Peripatopsidae family. It is found in New South Wales, Australia.
Heosphora psamathella is a moth in the family Pyralidae. The species was first described by Edward Meyrick in 1879, as Anerastia psamathella, from a male specimen collected in Sydney, New South Wales, and was moved to the genus Heosphora as its type species by George Hampson in 1901. It is found in Australia.
Cephalodiscus densus is a sessile hemichordate belonging to the order Cephalodiscida.
Cephalodiscus solidus is a sessile hemichordate belonging to the order Cephalodiscida.
Soleneiscus is a genus of calcareous sponges in the family Dendyidae.
Holger Valdemar Brøndsted was a Danish zoologist, teacher and writer.
Cymbastela lamellata is a species of marine sponge in the family Axinellidae.
Cymbastela stipitata is a species of marine sponge in the family Axinellidae.
