Latrodectus geometricus, commonly known as the brown widow, brown button spider, grey widow, brown black widow, house button spider or geometric button spider, is one of the widow spiders in the genus Latrodectus. As such, it is a 'cousin' to the more infamous Latrodectus mactans.
Button spider is a common name used in Southern Africa to refer to local members of the spider genus, Latrodectus, the family Theridiidae. There are both black and brown widow spiders in Southern Africa. Six Latrodectus species can be found in Southern Africa; five of them are native, one is possibly imported.
The geometric tortoise is a critically endangered species of tortoise and one of three members of the genus, Psammobates. It is found in a very small section in the South-Western Cape of South Africa.
The Seychelles house snake is a species of snake in the family Colubridae. It is endemic to Seychelles.
Goniobranchus geometricus is a species of colourful sea slug, a dorid nudibranch, a marine gastropod mollusc in the family Chromodorididae.
Psammobates is a genus of tortoise. This genus contains three member species, all of which are indigenous to Southern Africa.
Granulifusus geometricus is a species of sea snail, a marine gastropod mollusk in the family Fasciolariidae, the spindle snails, the tulip snails and their allies.
Granulifusus is a genus of sea snails, marine gastropod mollusks in the family Fasciolariidae, the spindle snails, the tulip snails and their allies.
Sejidae is a family of mites in the order Mesostigmata.
Harmony Flats Nature Reserve is a 9-hectare (22-acre) piece of protected land, located between Strand and Gordon's Bay, South Africa. It protects a surviving fragment of critically endangered “Lourensford Alluvium Fynbos” vegetation.
Goniobranchus is a genus of sea slugs, dorid nudibranchs, shell-less marine gastropod molluscs in the family Chromodorididae.
Eucharitolus is a genus of beetles in the family Cerambycidae, containing the following species:
Eucharitolus geometricus is a species of longhorn beetles of the subfamily Lamiinae. It was described by Tippmann in 1960, and is known from Bolivia.
Homonoeini is a tribe of longhorn beetles of the Lamiinae subfamily. It was described by Thomson in 1864.
Metamulciber is a genus of longhorn beetles of the subfamily Lamiinae, containing the following species:
Metamulciber albostriatus is a species of beetle in the family Cerambycidae. It was described by Stephan von Breuning in 1940.
Metamulciber ziczac is a species of beetle in the family Cerambycidae. It was described by Stephan von Breuning in 1947. It is known from Papua New Guinea.
Tylozygus geometricus is a species of sharpshooter in the family Cicadellidae.
Operclipygus geometricus is a species of clown beetle in the family Histeridae. It is found in Central America and North America.
Tephrocactus geometricus is a species of cactus under the genus Tephrocactus. It is also classified under the subfamily Opuntioideae. It is native to Argentina Catamarca and close to the Bolivian border, where it is exposed to extreme heat and an arid climate. T. geometricus receives its name from the Greek word γεωμετρία (geometrica), meaning geometry.
