Bernice Puahi Bishop Museum · CC BY-NC · GBIF · full resolution
Acrosiphonia arcta
Green Tarantula Weed
As recorded: Spongomorpha arcta (Dillwyn) Kütz.
Plantae › Chlorophyta › Ulvophyceae › Ulotrichales › Ulotrichaceae
- Collected by
- Conway, J.R.
- Collector number
- s.n.
- Date
- March 7, 1966
- Locality
- Bound Rock,Seabrook
- Region
- New Hampshire, Canada
- Record type
- Preserved specimen
Collected the same day
On March 7, 1966, Conway, J.R. also collected 12 other specimens.
Alaria esculenta
Botany
Ascophyllum nodosum
Botany
Bangia atropurpurea
Botany
Chaetomorpha cannabina
Botany
Cystoclonium purpureum
Botany
Melanothamnus harveyi
Botany
Porphyra umbilicalis
Botany
Porphyra umbilicalis
Botany
Scytosiphon lomentaria
Botany
Ulva intestinalis
Botany
Ulvaria obscura
Botany
Urospora penicilliformis
Botany
Acrosiphonia arcta observed alive
This specimen was collected in 1966. Since 2000, iNaturalist observers have recorded 64 research-grade sightings in the wild, most recently on 2026-08-30.
2026-08-30
Eurajoki, Suomi
(c) Kerttu Ylikotila, some rights reserved (CC BY-NC)
2026-05-18
Saint George Parish, NB, Canada
(c) Aidan Hicks, some rights reserved (CC BY-NC)
2026-04-18
Vancouver, BC, Canada
(c) malleable_rock, some rights reserved (CC BY-NC)
2026-04-18
Vancouver, BC, Canada
(c) malleable_rock, some rights reserved (CC BY-NC)
2026-04-12
North Pacific Ocean, CA, US
(c) all18, some rights reserved (CC BY-NC)
2026-04-04
North Pacific Ocean, Westhaven, CA, US
(c) caileighg, some rights reserved (CC BY-NC)
Observations and photos from iNaturalist, shown only when openly licensed.
Cite this specimen
Acrosiphonia arcta. BISH 686746. Bernice Pauahi Bishop Museum, Honolulu. GBIF occurrence 5956495064. Accessed via explore.bishopmuseum.org/specimens/bish/686746.
Record sources
- GBIF occurrence 5956495064 ↗
- Data license: CC_BY_NC_4_0
- Last harvested October 26, 2026