New species from the #CoralSeaFrontiers expedition featured in the Australian media. yeah, yeah fish-but I found a bunch of new and rare sea stars. So there! www.abc.net.au/news/2026-04...
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#coralseafrontiers
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Surface of a sea star composed of many plates, covered by short, sharp spines on the radial areas.
image from a sub of this sea star species with arms extneding upwards into water
Calliderma emma has been observed by subs around Hawaii-but a key character is the many, MANY sharp spines present along the radial regions! Protection perhaps for its papulae? Now seen from the Coral Sea! #coralseafrontiers thank you @oceancensus.bsky.social @drtimohara.bsky.social
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man with glasses and purple shirt holding a big sea star with two hands!
5 people, participants of a workshop in a lab holding a sea star specimen
Calliderma emma! An amazing species collected from #CoralSeaFrontiers! this one was easily 60 cm (2 FEET) across! The STAR among the participants of the @oceancensus.bsky.social workshop on asteroids! including @drtimohara.bsky.social among others! #echinoday
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asian man in purple shirt wearing glasses standing amidst specimens on lab bench around him
LAST DAY for the Sea Star #CoralSeaFrontiers workshop-Over 211 specimens, about 60 different species, maybe 20% of those? were undescribed! (but I did just publish a new paper on New Caledonia!) my thanks to @oceancensus.bsky.social @drtimohara.bsky.social for supporting this visit and ID workshop!
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4 orange pentagonal sea stars
oral view of a white specimen showing 5 tube foot grooves converging on the central mouth
Recently described "cookie" star Plinthaster australis from the #coralseafrontiers expedition! Originally known only from New Caledonia!
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2 arms from a white sea star, with spines present on every segment in the interradius
SPINES! are a commonly encountered structure on #deepsea sea stars, often with sharp points in serial rows! Likely as defenses against various predators! #coralseafrontiers thanks @drtimohara.bsky.social #benthopecten a likely new species
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ABSTRACTS of a deepsea sea star, an old friend called Perissogonaster from the Coral Sea #coralseafrontiers! showing off its gorgeous plates and ornaments! thank you @oceancensus.bsky.social @drtimohara.bsky.social
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Ok this find from the #CoralSeaFrontiers workshop is pretty cool! Our (super)star specialist Chris Mah is on the case.
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Could new species of mollusks be found in the guts of hungry mud stars from #coralseafrontiers? (654 m deep) ha ha! we shall see! support by @oceancensus.bsky.social and @drtimohara.bsky.social #echinoday
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A new species of mud star being described from >1000 m collected during the #coralseafrontiers expedition, Note how the tube feet are pointed rather than suckered. This is a common feature of stars that live on muddy/sandy bottoms! via @oceancensus.bsky.social @drtimrideout.bsky.social
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Star wars stormtrooper in Santa Hat cookie on cover of Starfishes of the Atlantic book
Ha ha. This has been my life for the last few weeks! #coralseafrontiers at Museum Victoria (they have a Star Wars Lego exhibit!) thanks @oceancensus.bsky.social @drtimohara.bsky.social
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sea star with large pointy spines on disk and along lateral edge
A spiny friend called Calliaster spinosus! Most likely not seen since Hubert Lyman Clark described it in 1916! #coralseafrontiers thanks to @oceancensus.bsky.social @drtimohara.bsky.social
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Specimen based research can have exciting secrets! Here, we have a possibly NEW sea star from 1500m but ALSO with healthy sediment in its gut! What were possible food items? snails! Forams? SECRETS from the DEEP! #coralseafrontiers @oceancensus.bsky.social @drtimohara.bsky.social #echinoday
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oops! #coralseafrontierS
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One of our favourite sea star scientists has arrived at the #CoralSeaFrontiers workshop. 🤩😎 We're looking forward to an exciting couple of months with CSIRO and our expert scientists, who'll be looking at specimens and identifying new species from recent expeditions to the Australian Coral Sea.
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bottom surface of a sea star which is covered in big pointed spines
bottom surface of a sea star with grooves converging on mourth but with surface covered in short spines
Been identifying my FAV groups! LOTS of spines going on! Calliaster on the left with big pointed ones and Perissogonaster on the right with small sharp, appressed ones! #coralseafrontiers thanks @oceancensus.bsky.social @drtimohara.bsky.social for supporting this visit! #echinoday
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white sea cucumberr with many tentcles emerging from surface
many sea cucumber specimens in a jar.
underside of sea cucumber with little tube feet
NEW SEA PIG (deep-sea sea cucumbers) DISCOVERIES AWAIT! Via #coralseafrontiers- supported work at Museum Victoria by @oceancensus.bsky.social Melanie M. and @drtimohara.bsky.social key words: CRUNCHY SEA PIG??
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closeup of 4 armed sea star with box-shaped disk
4 armed sea star with long triangular amrs on blue grid
4 armed sea star, white on blue grid. Arms triangular
A long-armed deep-sea sea star called Nymphaster with only 4 arms-appearing very much like a thowing star or a cylon base ship! A specimen from the #CoralSeaFrontiers expedition via work in Australia supported by
@oceancensus.bsky.social
@drtimohara.bsky.social !!
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