Snakes and spiders in Aleutians West Census Area, Alaska
Aleutians West Census Area has 0 snake and 11 spider species on record, from 0 licensed snake and 642 spider records. No venomous snake or spider reaches the county list.
What spiders are in Aleutians West Census Area?
In all, 11 spider species are on the Aleutians West Census Area list. The most recorded are the common west coast woodland spider (50), Sisicottus nesides (45) and the grey sheetweb weaver (35).
Same family (Linyphiidae): Frontinella pyramitela
Related species: Bathyphantes pallidus
Same family (Linyphiidae): Frontinella pyramitela
Related species: Robertus riparius| # | Species | Records | Share of Alaska records |
|---|---|---|---|
| 1 | Common west coast woodland spider Cybaeus reticulatus | 50 | 4% |
| 2 | Sisicottus nesides | 45 | 9% |
| 3 | Grey sheetweb weaver Bathyphantes brevipes | 35 | 28% |
| 4 | Miller dwarf weaver Erigone aletris | 22 | 17% |
| 5 | Eulaira arctoa | 20 | 47% |
| 6 | Pardosa palustris | 19 | 19% |
| 7 | Undergrowth sheet-web weaver Oreonetides vaginatus | 16 | 23% |
| 8 | Robertus vigerens | 14 | 8% |
| 9 | Holmgren's dwarf weaver Collinsia holmgreni | 11 | 26% |
| 10 | Centromerus sylvaticus | 10 | 25% |
| 11 | Common six-spotted cobweaver Rugathodes sexpunctatus | 10 | 2% |
What stands out in Aleutians West Census Area
Species for which Aleutians West Census Area holds a large share of all Alaska records: Eulaira arctoa, 47% (20 of 43); the grey sheetweb weaver, 28% (35 of 123); the Holmgren's dwarf weaver, 26% (11 of 42); Centromerus sylvaticus, 25% (10 of 40); the undergrowth sheet-web weaver, 23% (16 of 69); Pardosa palustris, 19% (19 of 98); the Miller dwarf weaver, 17% (22 of 132).
Common in Alaska, not on the Aleutians West Census Area list
Among the spiders most recorded across Alaska, these do not reach the county list: Ceratinops inflatus (736 statewide), Tenuiphantes zelatus (508 statewide), Symmigma minimum (398 statewide), Walckenaeria cornuella (379 statewide), Pocadicnemis pumila (338 statewide) and Pardosa lapponica (265 statewide). Few records here can mean the species is rare in the county, or that few people have looked.
Aleutians West Census Area among Alaska counties
Other Alaska counties with their own page: Haines Borough, Juneau City and Borough, Kenai Peninsula Borough, Matanuska-Susitna Borough, North Slope Borough, Prince of Wales-Outer Ketchikan Census Area, Skagway-Yakutat-Angoon Census Area and Southeast Fairbanks Census Area.
The whole state: venomous species in Alaska, all spiders.
GBIF records read 2026-09-29. Listed: any license. Counted: CC0/CC BY only. How we count.