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Hannes

@federgeistchen.bsky.social

170 followers 60 following 180 posts

23, student of biology, iNatter, and amateur macro-photographer. Arthropods, Annelids, Lichens, and many more I also play the violin and occasionally paint. :)

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Hannes @federgeistchen.bsky.social · Apr 16

Is it a worm? 🪱 Is it a dragon? 🐉
Who knows... (Though, judging by the emojis, I'd say: Definitely the latter!)
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#MarineLife #Polychaete #Worm #NaturePhotography #Macro #MacroPhotography

Close-up shot of the polychaete (bristle worm) Eulalia clavigera against a black background.
Its body is a dark golden-green at the front, fading into almost blue towards the end. However, the very tip of the tail is regenerating and is therefore almost yellow.
Each segment has a pair of dorsal cirri which (as is typical for its family, Phyllodocidae) form leaf-like paddles. On this individual they are rather slender, yellow towards the base, and dark green towards their tips. This creates the illusion of two yellow stripes going down the worm's body.

The head bears two reddish eyes and five pale antennae, and the first few segments have four pairs of green tentacular cirri.
I always thought they together with the paddles give the Phyllodocidae a dragonish appearance.

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Hannes @federgeistchen.bsky.social · 6d

Wow, love the eyes! 🤩

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Hannes @federgeistchen.bsky.social · 6d

No marine organism today, but a photo I’m very proud of nonetheless.
It even got awarded “best photo” at the Botanical Garden Bioblitz earlier this year. :D

It’s a portrait of Bembecia ichneumoniformes, a wasp mimicking butterfly.

#macro #macrophotography #nature #insect #butterfly #entomology

The image shows the head and part of the thorax. It is covered in bright yellow and dark brown scales. In the middle you can see one large complex eye and a smaller, singular eye above. The antennae are brownish. Only the lower half is on the photo.

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Reposted by Hannes

Dragons of Wales @dragonsofwales.bsky.social · 7d

For Jane.
RIP.

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Hannes @federgeistchen.bsky.social · 7d

Thank you! :)
Yeah, they definitely remind me of dragons too! (See the post pinned to my profile :P)

Polychaetes are beautiful creatures and the Phyllodocid polychaetes especially have made me really fall love these animals ^^

Hannes @federgeistchen.bsky.social · 8d

I've not been very active recently, but I'm back for this #WormWednesday with a polychaete from my favourite Genus: Phyllodoce. :D

I think, this is P. mucosa.

#polychaete #worm #macrophotography #nature #naturephotography #marinelife

Closeup of P. mucosa on a black background. The worm is yellowish with brown spots and has a turquoise underside. It has transparent paddles on each segment and 6 long tentacular cirri on its head as well as four little antennae.

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Reposted by Hannes

franz @franzanth.bsky.social · Sep 3

Here's the #InverteFest art book August 2025 cover posted in full - how many species can you identify in this piece? I'll post the answer later when I have the time to annotate the image.

A vertically long white drawing on black. the main figure is a wave of white, flowing from the bottom to the top composed of various invertebrates swimming and flying in unison - a sea slug, a bristle worm, a remipede, mosquito, jellies, and so on. lighter on the background are rough sketches of geometric pattern complementing the fluidly moving animals.

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Hannes @federgeistchen.bsky.social · Jun 2

I don't really know what to do right now, I'm just waiting for some loading bars to finish loading, and I apparently have to be at the computer for this because otherwise it stops...

So I thought I'd share another cool animal: Hersiliodes latericius, a very orange copepod! :)

#MarineLife #Macro

A photo of Hersiliodes latericius under a microscope. The background was black-ish originally, but has been manually turned completely black.
The copepod is translucent yellowish with bright orange streaks. (It looks like some inner organ is orange, but I don't really know.)

It carries two large egg-sacs, which are also bright orange. The antennae are rather short.

Hannes @federgeistchen.bsky.social · May 23

Look at all the unlawful shit Trump et al. have already done. Experts on totalitarianism and dictatorships are leaving the US. I urge you, do something *before* the US becomes one! Right now is still the best chance with Harvard and loads of other independent institutions on your side.

Hannes @federgeistchen.bsky.social · May 23

It's frustrating to see people so confident that the law will stop this new attack of Trump against Harvard.
US-government doesn't care about the law and after the international students get their heads shaven and sent in shackles to wherever, no amount of being in the right can fix the situation.

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Reposted by Hannes

Alex @watercolorsbyalex.bsky.social · May 21

My desk this week!💐🐋
Such different subjects and style and I equally love them both🩷

I hope you’re having a great week!

#watercolor #painting
#workinprogress #artist
#art

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Hannes @federgeistchen.bsky.social · May 22

In the meantime one could develop a grocery store map-app for every store. Like Wikipedia, it would be user-curated and the chewy-decimal system would be its backbone. Once you tap on the item you want, the shelf on the map gets highlighted. You could also plan your shopping with an optimal route.

Reposted by Hannes

Lizzie Harper Illustrator @lizzie-harper.bsky.social · May 20

Ive just done a 3 day workshop teaching people to paint #leaves in #watercolour at Cambridge university botanical gardens, & thought I'd share this teaching aid.

Quick & basic...& under 3 mins long!

#botanicalillustration #sciart

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Hannes @federgeistchen.bsky.social · May 17

You deserved a lot more in the public vote though. I liked your song :(

Hannes @federgeistchen.bsky.social · May 17

:)

#orchid #plant #houseplant

Potted orchid with leaves at the base, a long stem and two yellow and green slipper-like flowers.

Hannes @federgeistchen.bsky.social · May 13

I haven't posted an animal in ages, but don't think I've run out! There's plenty more to come. This very fashionable blue and red amphipod for example!

I sadly don't know anything about it apart from that it is an amphipod.

#MarineLife #Macrophotography #Crustacean #Amphipod #Nature #Animal

A closeup of an amphipod against a background.
You can see its left side. As mentioned, it is blue with red markings on each tergite. The eye is red as well.

Hannes @federgeistchen.bsky.social · May 6

To make up for this, I made really good pancakes just now. Best I’ve ever made.

Hannes @federgeistchen.bsky.social · May 6

Wow. That’s huge (for an ostracod)! I wish I could see them irl :D

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Hannes @federgeistchen.bsky.social · May 6

Bureaucracy is the final boss.
I just want to be able to live and do useful stuff without filling out multiple 20-page documents that all require a bunch of different numbers (assigned to me at birth) that I do not know.

I'm livid. This is dystopia.

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Hannes @federgeistchen.bsky.social · May 6

Whoa. How big is it? I didn’t know they could get larger than 1 or 2 mm

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Reposted by Hannes

iNaturalist @inaturalist.bsky.social · Apr 25

7. Candy-striped Polychaete (Dorvillea moniloceras) by chilipossum

A bubblegum pink worm with many segments and a very tiny face looks at the camera.

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Reposted by Hannes

franz @franzanth.bsky.social · May 5

IT'S FINISHED!
The Art of #InverteFest April 2025 Edition
A digital art book showcasing the work of 86 artists from around the world, in celebration of overlooked invertebrate fauna.

Thank you to the human artists who contributed to our art book!

Download here drive.google.com/file/d/1JvEx...

a promo image showing various pages from the book, each page showcasing different animals like a bristle worm, octopus, butterfly, and so on.

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Hannes @federgeistchen.bsky.social · May 1

Personally I use "Greenwich Meal Time". As I'm from Germany, Greenwich Meal Time means I can have food an hour earlier than would otherwise be deemed acceptable.

Hannes @federgeistchen.bsky.social · Apr 26

Oh no! Due to City-Nature-Challenge craziness, I have totally forgotten about #InverteFest! D:

I hope I can make up for it with this collection of wonderful chitons, all of the species Lepidochitona cinerea, a species with amazing variety! :D

#MarineLife #Photography #Mollusks #MacroPhotography

Close up of a pale green L. cinerea against a black background. It has a white oval across shell plates 2 and 3 and a white arrow-like shape across shell plates 5-7

Close-up of a brown chiton with orange along the center line (except on shell plates 1 and 4) and pale bluish spots

A pinkish L. cinerea with red "arrowheads" in the center of shell plates 2-7. The perinotum is pale with regularly spaced darker stripes.

A grey marmorated L. cinerea with lots of tiny spots in green, brown, slightly blue. The Perinotum is of a pale brown

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Hannes @federgeistchen.bsky.social · Apr 26

Thanks! ^^
That makes sense. It would be weird to have the vision of those central eyes obstructed by them if they didn’t serve any other sensory functions.

Hannes @federgeistchen.bsky.social · Apr 24

Here's a closeup of the head with those flappy things and all the little eyes. If you know what the flaps are called and what function they serve, please let me know! :D

#Platyhelminthes #Worms #FlatWorm

All has already been said. It's just a closeup of the head, also against a black background, but I did a poor job at cleaning the glass.

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