''Tetrablemma'' is a widespread genus of armored spiders first described by

Octavius Pickard-Cambridge Octavius Pickard-Cambridge Fellow of the Royal Society, FRS (3 November 1828 – 9 March 1917) was an England, English clergyman and zoologist. He was a keen arachnologist who described and named more than 900 species of spider. Life and wor ...

in 1873. It only has four eyes; an unusual trait for spiders, found only here and in some species of '' Caponiidae'', though the two are not closely related. The eyes are large, but unequal in size, closely grouped around the center of the

prosoma The cephalothorax, also called prosoma in some groups, is a tagma of various arthropods, comprising the head and the thorax fused together, as distinct from the abdomen behind. (The terms ''prosoma'' and ''opisthosoma'' are equivalent to ''cepha ...

that rises in a somewhat of a cone shape from the abdomen. They have four closely positioned spinnerets enclosed in a

corneous Corneous is a biological and medical term meaning horny, in other words made out of a substance similar to that of horns and hooves in some mammals. The word is generally used to describe natural or pathological anatomical structures made out ...

casing.

Species

, the

World Spider Catalog The World Spider Catalog (WSC) is an online searchable database concerned with spider taxonomy. It aims to list all accepted families, genera and species, as well as provide access to the related taxonomic literature. The WSC began as a series of ...

accepted the following species: *'' Tetrablemma alaus'' Burger, Harvey & Stevens, 2010 – Australia (Western Australia) *'' Tetrablemma alterum'' Roewer, 1963 – Micronesia *'' Tetrablemma benoiti'' (Brignoli, 1978) – Seychelles *'' Tetrablemma brevidens'' Tong & Li, 2008 – China *'' Tetrablemma brignolii'' Lehtinen, 1981 – India *'' Tetrablemma deccanense'' (Tikader, 1976) – India *'' Tetrablemma extorre'' Shear, 1978 – Trinidad *'' Tetrablemma helenense'' Benoit, 1977 – St. Helena *'' Tetrablemma kepense'' Lin, Li & Jäger, 2018 – Cambodia *''

Tetrablemma loebli ''Tetrablemma'' is a widespread genus of armored spiders first described by Octavius Pickard-Cambridge in 1873. It only has four eyes; an unusual trait for spiders, found only here and in some species of ''Caponiidae'', though the two are not clo ...

'' Bourne, 1980 – India *'' Tetrablemma magister'' Burger, 2008 – Australia (Queensland) *''

Tetrablemma manggarai ''Tetrablemma'' is a widespread genus of armored spiders first described by Octavius Pickard-Cambridge in 1873. It only has four eyes; an unusual trait for spiders, found only here and in some species of '' Caponiidae'', though the two are not cl ...

'' Lehtinen, 1981 – Indonesia (Flores) *'' Tetrablemma marawula'' Lehtinen, 1981 – Indonesia (Sulawesi) *''

Tetrablemma mardionoi ''Tetrablemma'' is a widespread genus of armored spiders first described by Octavius Pickard-Cambridge in 1873. It only has four eyes; an unusual trait for spiders, found only here and in some species of ''Caponiidae'', though the two are not clo ...

'' Lehtinen, 1981 – Indonesia (Sumatra) *'' Tetrablemma medioculatum'' O. Pickard-Cambridge, 1873 (

type species In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specimen ...

) – Sri Lanka *''

Tetrablemma menglaense ''Tetrablemma'' is a widespread genus of armored spiders first described by Octavius Pickard-Cambridge in 1873. It only has four eyes; an unusual trait for spiders, found only here and in some species of ''Caponiidae'', though the two are not clo ...

'' Lin & Li, 2014 – China *''

Tetrablemma namkhan ''Tetrablemma'' is a widespread genus of armored spiders first described by Octavius Pickard-Cambridge in 1873. It only has four eyes; an unusual trait for spiders, found only here and in some species of ''Caponiidae'', though the two are not clo ...

'' Lin, Li & Jäger, 2012 – Laos *''

Tetrablemma nandan ''Tetrablemma'' is a widespread genus of armored spiders first described by Octavius Pickard-Cambridge in 1873. It only has four eyes; an unusual trait for spiders, found only here and in some species of '' Caponiidae'', though the two are not cl ...

'' Lin & Li, 2010 – China *''

Tetrablemma okei ''Tetrablemma'' is a widespread genus of armored spiders first described by Octavius Pickard-Cambridge in 1873. It only has four eyes; an unusual trait for spiders, found only here and in some species of ''Caponiidae'', though the two are not clo ...

'' Butler, 1932 – Australia (Victoria) *''

Tetrablemma phulchoki ''Tetrablemma'' is a widespread genus of armored spiders first described by Octavius Pickard-Cambridge in 1873. It only has four eyes; an unusual trait for spiders, found only here and in some species of ''Caponiidae'', though the two are not clo ...

'' Lehtinen, 1981 – Nepal *''

Tetrablemma rhinoceros ''Tetrablemma'' is a widespread genus of armored spiders first described by Octavius Pickard-Cambridge in 1873. It only has four eyes; an unusual trait for spiders, found only here and in some species of ''Caponiidae'', though the two are not clo ...

'' (Brignoli, 1974) – Angola *''

Tetrablemma samoense ''Tetrablemma'' is a widespread genus of armored spiders first described by Octavius Pickard-Cambridge in 1873. It only has four eyes; an unusual trait for spiders, found only here and in some species of ''Caponiidae'', though the two are not clo ...

'' Marples, 1964 – Samoa *''

Tetrablemma sokense ''Tetrablemma'' is a widespread genus of armored spiders first described by Octavius Pickard-Cambridge in 1873. It only has four eyes; an unusual trait for spiders, found only here and in some species of '' Caponiidae'', though the two are not cl ...

'' Lin, Li & Jäger, 2018 – Cambodia *''

Tetrablemma thamin ''Tetrablemma'' is a widespread genus of armored spiders first described by Octavius Pickard-Cambridge in 1873. It only has four eyes; an unusual trait for spiders, found only here and in some species of '' Caponiidae'', though the two are not cl ...

'' Labarque & Grismado, 2009 – Myanmar *'' Tetrablemma viduum'' (Brignoli, 1974) – Angola *'' Tetrablemma vietnamense'' Lehtinen, 1981 – Vietnam *'' Tetrablemma ziyaoense'' Lin & Li, 2014 – China

References

Tetrablemmidae Araneomorphae genera Spiders of Asia Spiders of Africa Spiders of the Caribbean {{Tetrablemmidae-stub