Attheya arenicola
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| Attheya arenicola | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Clade: | Sar |
| Clade: | Stramenopiles |
| Division: | Ochrophyta |
| Clade: | Bacillariophyta |
| Class: | Biddulphiophyceae |
| Order: | Attheyales |
| Family: | Attheyaceae |
| Genus: | Attheya |
| Species: | A. arenicola |
| Binomial name | |
| Attheya arenicola (Gardner & Crawford, 1994) | |
Attheya arenicola is a microscopic organism found on sandy beaches along European coastlines. It belongs to a group of water-dwelling microorganisms called diatoms, which are characterised by their glass-like outer shells made of silica. First officially documented in 1994, this tiny organism features a distinctive rectangular shape with four long, horn-like projections extending from its corners. Unlike many related species that float freely in open water, Attheya arenicola specifically thrives in the sand of tidal zones, which is reflected in its Latin name meaning "sand-dweller".
Attheya arenicola was discovered during a programme of collecting and culturing smaller diatoms from around British coasts. It was formally described in 1994 by Claire Gardner and Richard M. Crawford, who recognised its similarities to Attheya decora (the type species of the genus) but identified several morphological differences that justified its classification as a new species. The type locality was Penbre, Dyfed, South Wales on intertidal sand (Grid reference: S 405985). This is where the holotype specimen (BM 81902) was collected, which serves as the reference specimen for the species.[1]
The genus Attheya itself has had a complicated taxonomic history. Initially, there was uncertainty about its systematic position, with early classifications placing it within the Biddulphieae. By 1994, when A. arenicola was described, researchers were recognising the distinctive characteristics that separated Attheya from other genera, particularly the unique structure of its horns and its habitat preferences. The genus name honours the British diatomist Thomas Atthey.[1]
The specific epithet arenicola derives from Latin, meaning "sand-dweller", alluding to its typical habitat on sandy beaches.[1]