Enter Search Terms:
Genus (i.e. Fucus)
Species (i.e. Gardneri)
Common Name (i.e. Rock Weed)
Phylum (i.e. Ochrophyta)
All of the above
Hooked Skein
Antithamnionella pacifica
Authority:
(Harvey) E.M. Wollaston
North Pacific Distribution:
Aleutian Is., Alaska, to Baja California, Mexico; Russia.
Phylum:
Rhodophyta
Class:
Florideophyceae
Order:
Ceramiales
Family:
Ceramiaceae
Former Scientific Names:
Callithamion floccosum var. pacificum, Antithamnion pacificum, A. uncinatum, A. alternans, A. asymmetricum, Antithamnionella pacifica var. uncinata
Description: Thallus is a delicate, uniseriate filament, reaching 15 cm (6 in) tall. Microscopic branches are opposite, usually short and unbranched, with squarish basal cells. The branch tip is somewhat sinusoidal. Habitat: This ephemeral seaweed grows on rock and epiphytically in the low intertidal and subtidal of semi-protected to exposed habitats. Similar taxa: Polysiphonia pacifica, Pterosiphonia spp.
Click on a thumbnail to view larger version