The Portulacaceae are a family of flowering plants, comprising 115 species in a single genus Portulaca. Formerly some 20 genera with about 500 species, were placed there, but it is now restricted to encompass only one genus, the other genera being placed elsewhere. The family has been recognised by most taxonomists, and is also known as the purslane family. It has a cosmopolitan distribution, with the highest diversity in semiarid regions of the Southern Hemisphere in Africa, Australia, and South America, but with a few species also extending north into Arctic regions. The family is very similar to the Caryophyllaceae, differing in the calyx, which has only two sepals.
The muriquis, also known as woolly spider monkeys, are the monkeys of the genus Brachyteles. They are closely related to both the spider monkeys and the woolly monkeys. The two species are the southern and northern muriquis. They are the two largest species of New World monkeys, and the northern species is one of the most endangered of all the world's monkeys.
The southern muriqui is a muriqui species endemic to Brazil. It is found in the Brazilian states of Paraná, São Paulo, Rio de Janeiro, Espírito Santo and Minas Gerais. This New World monkey is known locally as mono carvoeiro, which translates to "charcoal monkey".
Calymene Brongniart, 1822, is a genus of trilobites in the order Phacopida, suborder Calymenina, that are found throughout North America, North Africa, and Europe in primarily Silurian outcrops. Calymene is closely related to Flexicalymene, and both genera are frequently found enrolled. Calymene trilobites are small, typically 2 cm in length. The cephalon is the widest part of the animal and the thorax usually has 13 segments.
Arachnoides is a genus of sea urchin within the family Clypeasteridae, found in the Indo-Pacific oceans. The base is flat and the upper surface is convex.
Helichrysum arachnoides is a species of flowering plant in the family Asteraceae. It is found only in Yemen. Its natural habitat is subtropical or tropical dry forests.
The spider tortoise is a species of tortoise in the family Testudinidae that is endemic to Madagascar and is one of only two species in the genus Pyxis.
Pyxis is a genus of tortoise in the family Testudinidae. It contains the following species:
Macfarlandia arachnoides is a species of beetles in the family Carabidae, the only species in the genus Macfarlandia.
Ammotrophus arachnoides is a species of sand dollar of the family Arachnoididea. Their external skeleton, known as a test, is covered with spines. It belongs to the genus Ammotrophus and lives in the sea off southern Australia. Ammotrophus arachnoides was first scientifically described in 1938 by Hubert Clark.
Anisopodus arachnoides is a species of beetle in the family Cerambycidae that was described by Audinet-Serville in 1835.
Arachnoides placenta is a species of sea urchin of the family Clypeasteridae. Their armour is covered with spines. It is placed in the genus Arachnoides and lives in the sea. Arachnoides placenta was first scientifically described in 1758 by Carl Linnaeus.
Arachnoides tenuis is a species of sea urchin of the family Clypeasteridae. Their armour is covered with spines. It is placed in the genus Arachnoides and lives in the sea. Arachnoides tenuis was first scientifically described in 1938 by Hubert Lyman Clark.
Araeolampas atlantica is a species of sea urchin of the family Loveniidae. Their armour is covered with spines. It is placed in the genus Arachnoides and lives in the sea. Araeolampas atlantica was first scientifically described in 1974 by K. Serafy.
Tessarecphora arachnoides is a species of beetle in the family Cerambycidae, and the only species in the genus Tessarecphora. It was described by Thomson in 1857.
Eremophila arachnoides is a plant in the figwort family, Scrophulariaceae and is endemic to a few arid areas of Western Australia and South Australia. It is a little-known, broom-shaped shrub with white to mauve, trumpet-shaped flowers which are densely hairy on the inside.
Clypeasteridae is a family of sea urchins in the order Clypeasteroida. This family was first scientifically described in 1835 by the Swiss-American biologist Louis Agassiz.
Anacampseros arachnoides is a species of succulent plant native to the Little Karoo region of South Africa.
Leptospermum arachnoides, commonly known as the spidery tea-tree, is a species of shrub that is endemic to eastern Australia. It has rough bark, crowded linear to lance-shaped leaves with a sharp point on the end, white flowers and hairy fruit.
Neophisis is a genus of Asian bush crickets belonging to the tribe Phisidini: in the subfamily Meconematinae.
