Checklist for Tribe Cyrtarachnini Simon, 1895 and region Contra Costa County (California, USA)
Class | Arachnida Lamarck, 1801 Arachnids | 56 112 122 | Families Genera Species | Taxom | Subclass | Micrura Ehrenberg, 1831
| 46 100 111 | Families Genera Species | Taxom | Infraclass | Megoperculata Börner, 1902
| 22 60 73 | Families Genera Species | Taxom | Order | Araneae Clerck, 1757 Spider, Spiders, True Spiders | 22 60 73 | Families Genera Species | Taxom | Suborder | Araneomorphae Smith, 1902 True Spiders | 20 58 71 | Families Genera Species | Taxom | Infraorder | Araneomorphi Smith, 1902
| 20 58 71 | Families Genera Species | Taxom | Superfamily | Araneoidea Latreille, 1806
| 4 20 26 | Families Genera Species | Taxom | | Family | Araneidae Simon, 1895 Golden orb web spiders, Indet. Spider, Nephila web spiders | 10 13 | Genera Species | Taxom | | Subfamily | Cyrtarachninae
| 2 2 | Genera Species | Taxom | | Tribe | Cyrtarachnini Simon, 1895
| 1 1 | Genus Species | Taxom |
Genera for Contra Costa County 1 Genera with 1 Species
Species list for Contra Costa County 1 Species
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