Guttaviridae

Guttaviridae is a family of viruses. "Sulfolobus newzealandicus" serve as natural hosts. There are currently only two species in this family, divided among two genera. The name is derived from the Latin "gutta", meaning 'droplet'.
Taxonomy.
Group: dsDNA
Structure.
Viruses in the family "Guttaviridae" are enveloped. The diameter is around 70–95 nm, with a length of 110–185 nm. Genomes are circular, around 20kb in length. The virons consist of a coat, a core, a nucleocapsid, and projecting fibers at the pointed end. The surface of the virion has a beehive-like ribbed surface pattern with protrusions that are densely covered by a 'beard' of long fibers at its pointed end. The genome is extremely heavily methylated.
Life cycle.
DNA-templated transcription is the method of transcription. "Sulfolobus newzealandicus" serve as the natural host.