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| Corticoviridae | icosahedral capsid with lipid layer, circular supercoiled dsDNA |
| Cystoviridae | enveloped, icosahedral capsid, lipids, three molecules of linear dsRNA |
| Fuselloviridae | pleomorphic, envelope, lipids, no capsid, circular supercoiled dsDNA |
| Inoviridae genus Inovirus | long filaments with helical symmetry, circular ssDNA |
| Inoviridae genus Plectrovirus | short rods with helical symmetry, circular ssDNA |
| Leviviridae | quasi-icosahedral capsid, one molecule of linear ssRNA |
| Lipothrixviridae | enveloped filaments, lipids, linear dsDNA |
| Microviridae | icosahedral capsid, circular ssDNA |
| Myoviridae, A1 | tail contractile, head isometric |
| Myoviridae, A2 | tail contractile, head elongated (length/width ratio = 1.3-1.8) |
| Myoviridae, A3 | tail contractile, head elongated (length/width ratio = 2 or more) |
| Plasmaviridae | pleomorphic, envelope, lipids, no capsid, circular supercoiled dsDNA |
| Podoviridae, C1 | tail short and noncontractile, head isometric |
| Podoviridae, C2 | tail short and noncontractile, head elongated (length/width ratio = 1.4) |
| Podoviridae, C3 | tail short and noncontractile, head elongated (length/width ratio = 2.5 or more) |
| Rudiviridae | helical rods, linear dsDNA |
| Siphoviridae, B1 | tail long and noncontractile, head isometric |
| Siphoviridae, B2 | tail long and noncontractile, head elongated (length/width ratio = 1.2-2) |
| Siphoviridae, B3 | tail long and noncontractile, head elongated (length/width ratio = 2.5 or more) |
| Tectiviridae | icosahedral capsid with inner lipoprotein vesicle, linear dsDNA, "tail" produced for DNA injection |