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sumie-dh

@sumie-dh.bsky.social

730 followers 170 following 200 posts

Work, worms, weather, repeat. Planarian distribution and taxonomy. Keeper of microscope herd. IT rat at day, lab rat at night. brmlab.s0c4.net/bioosm

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sumie-dh @sumie-dh.bsky.social · Nov 13

We released set of slides which is focused on Haptophrya planariarum in Dugesia gonocephala planarians. This endobiont is very common, most of my Dgon slides have at least one ciliate. WSI of 6 samples is available at bioosm.brmlab.cz/histolka/pro... #protistsonsky 🌿 #invertebrate
🧪 #parasitology

sumie-dh @sumie-dh.bsky.social · 5d

In warm regions I have my own bet, Platydemus manokwari had certain not very picky nematode species . I will wait in this case because depicted flatworm is invasive in colder European regions and not in endemic region of my nematode tip

sumie-dh @sumie-dh.bsky.social · 11d

If you wonder about those white dots here is close up. Those are ciliates from Urceolaria mitra complex. No Trichodina denticles in adhesive disc are present, there is denticulate ring instead of denticles. Diff-Quick, 40x objective.

sumie-dh @sumie-dh.bsky.social · 11d

I'm not dead. Just very busy. Not much of time for internet at those days. Some adult Dugesia gonocephala from recent Slovakia batch. #FlatwormFriday

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sumie-dh @sumie-dh.bsky.social · Aug 10

Huge polyclad pancake sampled today at Mar Del Plata Canyon, Argentina by @schmidtocean.bsky.social. I didn't spotted any significant head features like any type of tentacles which are present in various polyclad group. Available at www.youtube.com/watch?v=ttYm...

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sumie-dh @sumie-dh.bsky.social · Aug 2

Another bunch of deep sea polyclads from @schmidtocean.bsky.social Argentina dive 819. Longer ones are somebody from Boninioidea? Really not sure. Anyway, that canyon sediments and rocks are covered by them. Available at www.youtube.com/watch?v=kAxq... and www.youtube.com/watch?v=FJNJ...

sumie-dh @sumie-dh.bsky.social · Jul 30

Six of those Stylochoidea-like polyclads sampled today by
@schmidtocean.bsky.social at Mar Del Plata Canyon, Argentina, cca 2500 m. Fine large #polyclads, enough to fill few double wide slides. Good luck with future description of those. Available at www.youtube.com/watch?v=xg9N... #WormWednesday

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sumie-dh @sumie-dh.bsky.social · Jul 9

Pleasure to identify with this quality of photos. Last DIC picture in this observation is beautiful. #WormWednesday 🌿 #invertebrate

www.inaturalist.org/observations...

Blind Strudelworm (Typhloplana viridata)

Blind Strudelworm from 026 01 Dolný Kubín, Slovakia on April 25, 2025 at 12:15 PM by Fero Bednar

www.inaturalist.org

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Reposted by sumie-dh

Elizabeth Beston @elizabethbeston.bsky.social · Jul 6

This is so FREAKIN’ COOL! This calanoid copepod has a friend visiting…INSIDE ITS BODY!! There’s a trematode worm, a parasite, taking up pretty much every micron of this poor dude. You can see the worm’s suckers that is used to attach to its host. AWESOME!! 🦑 #plankton

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sumie-dh @sumie-dh.bsky.social · Jul 5

Just lovely shot of Dendrocoelopsis americana #planarian #WormWednesday 🌿 #invertebrate www.inaturalist.org/observations...

Dendrocoelopsis americana

Dendrocoelopsis americana in May 2025 by Turner Brockman

www.inaturalist.org

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sumie-dh @sumie-dh.bsky.social · Jun 22

Mothership of Dendrocoelum lacteum found today. We need some for our DNA barcoding shenanigans so I left my den for unexpected fieldwork today. Temperatures were rather hostile but worms are just fine. #WormWednesday 🌿 #invertebrate

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sumie-dh @sumie-dh.bsky.social · Jun 5

Theromyzon tessulatum from weekend fieldwork session. This one had one epistylid epibiont, other glossiphonids had none. Weird, this locality is usually quite reliable on epistylid abundance. #WormWednesday 🌿 #invertebrate

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Reposted by sumie-dh

ISYEB @isyeb.mnhn.fr · May 22

Published in #Check_List, 21(3)
"First confirmed records with molecular data of the terrestrial flatworm Bipalium kewense Moseley, 1878 (Tricladida, Geoplanidae) in Madagascar, Egypt..."
by Gastineau,R., @jean-lou-justine.bsky.social @isyeb.mnhn.fr et al.
#Platyhelminthes
🪱 doi.org/10.15560/21....

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sumie-dh @sumie-dh.bsky.social · May 21

Alboglossiphonia sp. from latest fieldwork session adding another finding of epistylid epibionts into collection. Case from 2023 is available on bioosm.brmlab.cz/histolka/pro.... Perhaps it's just about looking around. #WormWednesday 🌿 #invertebrate

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sumie-dh @sumie-dh.bsky.social · May 14

Pair of Dalyellia penicilla whole mounts. One is stained with acetic carmine. #WormWednesday #microscopy

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sumie-dh @sumie-dh.bsky.social · May 12

Monday is feeding and washing day. Girardia sp. planarians playing tug of war with frozen chironomid during feeding.

sumie-dh @sumie-dh.bsky.social · May 11

Grab this if you didn't screamed internally this week yet

sumie-dh @sumie-dh.bsky.social · May 8

Me: OK, we need check this on other planarian, let's see Girardia tigrina
Brain: OK
Brain: Isn't it nematode in the pharyngeal tissue?
Me: It is,but later
Brain: I wanna nematode! Let's check all slides!
Me: No, it's 16 slides, back to original task!
Brain: I wanna nematode!
Me: OK, but I hate you.

sumie-dh @sumie-dh.bsky.social · May 7

Isn't it spoon worm proboscis [ Ikedidae family] ? I meeting those on iNat, often misidentified for nemerteans.

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sumie-dh @sumie-dh.bsky.social · May 7

Exceptionally large Dugesia gonocephala from latest fieldwork session near Prague #WormWednesday 🌿 #invertebrate

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sumie-dh @sumie-dh.bsky.social · Apr 30

Season of tiny blobs is apparently on. Microdalyellia armigera from latest fieldwork session for #WormWednesday. 250x stitch. 🌿 #invertebrate

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sumie-dh @sumie-dh.bsky.social · Apr 28

I have special worms this time. This week, after 5 years of looking for planarians I found Dendrocoelum which is not D. lacteum. It's most likely D. coecum, endemic planarian which was known in Central Bohemian valleys. They need further work, 3 blind species possible. Stay tuned ;] #InverteFest

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sumie-dh @sumie-dh.bsky.social · Apr 24

#FlatwormFriday. Taenia pisiformis scolex. 4 suckers, calcareous corpuscles in parenchyma are visible under tegument. Nice muscle fibers in parenchymal tissue. Just tiny slice, in mm scale. 500x, H&E, several frames. Not my production, operator was somebody from T. Gerrard & Co, UK #parasitology

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Reposted by sumie-dh

INOUE, Takeshi @planarian-brain.bsky.social · Apr 4

Regeneration leads to global tissue rejuvenation in aging sexual planarians | Nature Aging
www.nature.com/articles/s43...

Regeneration leads to global tissue rejuvenation in aging sexual planarians - Nature Aging

The freshwater planarian S. mediterranea is an important model organism for regeneration research but its use in aging research is little explored and S. mediterranea is commonly referred to as immort...

www.nature.com

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Reposted by sumie-dh

Plazi @plazi-species.bsky.social · Mar 28

#NewSpecies!
New marine flatworm from #japan just crept in:

Prostheceraeus fragum

Treatment: treatment.plazi.org/id/F8378799-...
Publication: doi.org/10.1080/0022...
#JournalOfNaturalHistory #ProstheceraeusFragum

#FAIRdata
#openaccess #ecology #biodiversity #nature #conservation #worms #flatworm

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sumie-dh @sumie-dh.bsky.social · Mar 16

Who is the first one? Some kind of echiurid?

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