Brief
Researchers describe two new Salish Sea sea‑spider species
The discovery, based on a 2023‑24 field season, adds to marine invertebrate records and underscores data gaps for climate‑impact studies.
By Felo News Desk · Published
Scientists have formally described two previously unknown sea‑spider species from the Salish Sea, marking the first such findings in the region in almost a hundred years, scitechdaily.com reported.
What happened
During a field season that ran from September 2023 to August 2024, a team led by Cormac Toler‑Scott of the University of British Columbia dived to depths of up to 18 metres around Quadra Island, Vancouver, Bamfield and Victoria. Their surveys yielded two new species, one named Tanystylum kiixin and the other Callipallene pilosuspedes. The findings were published in the journal Organisms Diversity & Evolution.
What the reports add
Scitechdaily highlighted the striking morphology of the new taxa: Tanystylum kiixin possesses bright red eyes, hairy feet and a three‑lipped proboscis that resembles a miniature “Sarlacc pit,” while Callipallene pilosuspedes shows extensive grooming structures and hosts numerous parasites. The outlet noted that sea spiders belong to an ancient arthropod lineage dating back roughly 500 million years and are related to spiders, scorpions and horseshoe crabs, yet they have never colonised land.
What was said
"In order to understand how marine invertebrates are being impacted by things like climate change and how we can better protect these key elements of the ecosystem, we have to be able to identify them," Toler‑Scott told scitechdaily.com. He added that the lack of baseline species data in the Salish Sea hampers assessments of climate‑related threats.
How it came about
The discovery follows a broader effort to fill a “century‑long blind spot” in knowledge of Salish Sea biodiversity. Earlier Felo News coverage on regional marine life, such as the September 2026 article on the largest North American crayfish, emphasized similar data gaps for invertebrates. The new sea‑spider records provide concrete taxonomic data that can support future monitoring of climate impacts in the Pacific Northwest.
Key facts
- Two new sea‑spider species, <i>Tanystylum kiixin</i> and <i>Callipallene pilosuspedes</i>, were described from the Salish Sea. (scitechdaily.com)
- The field season spanned September 2023 to August 2024, with dives as deep as 18 metres. (scitechdaily.com)
- The study was led by Cormac Toler‑Scott, a master’s student in zoology at UBC. (scitechdaily.com)
- Findings were published in the peer‑reviewed journal <i>Organisms Diversity & Evolution</i>. (scitechdaily.com)
- Sea spiders are an ancient marine arthropod group that diverged about 500 million years ago. (scitechdaily.com)
Sources
- [1] scitechdaily.com — originally reported as “Scientists Found a Hairy-Legged Sea Spider With a Nightmare Mouth”
