Erick Arrashy Rudianto
@erickrudianto.bsky.social
Invertebrate zoology enthusiasts. Currently working with marine digenean.
Natural history lover and history nerd
PhD Student of Marine Science at Universitas Diponegoro
Natural history lover and history nerd
PhD Student of Marine Science at Universitas Diponegoro
Reposted by Erick Arrashy Rudianto
Did you think hermit crabs always live in snail shells? 🧪🦀
Some deep sea hermit species live symbiotically with anemones that DISSOLVE the shell and SECRETE a new one ("carcinoecium") made of chitin! The carcinoecium has evolved at least 3 times! Photo credits in alt text. @megdaly.bsky.social
Some deep sea hermit species live symbiotically with anemones that DISSOLVE the shell and SECRETE a new one ("carcinoecium") made of chitin! The carcinoecium has evolved at least 3 times! Photo credits in alt text. @megdaly.bsky.social
October 19, 2023 at 2:11 PM
Did you think hermit crabs always live in snail shells? 🧪🦀
Some deep sea hermit species live symbiotically with anemones that DISSOLVE the shell and SECRETE a new one ("carcinoecium") made of chitin! The carcinoecium has evolved at least 3 times! Photo credits in alt text. @megdaly.bsky.social
Some deep sea hermit species live symbiotically with anemones that DISSOLVE the shell and SECRETE a new one ("carcinoecium") made of chitin! The carcinoecium has evolved at least 3 times! Photo credits in alt text. @megdaly.bsky.social
Reposted by Erick Arrashy Rudianto
Fun fact, a lot of wonderful scientific illustrations you see in the 19th century natural science publications, were done by women, usually spouses of the researchers as uncredited free labour. The famous finches, came from John Gould, his wife, Elizabeth, illustrated his ornithology books.
This is not an attack on Biorender, which serves a useful function.
It’s exposing a troubling phenomenon that is unconsciously sucking the artistry out of science and reinforcing a silent conformity in its presentation and perception.
It’s exposing a troubling phenomenon that is unconsciously sucking the artistry out of science and reinforcing a silent conformity in its presentation and perception.
December 1, 2025 at 1:17 PM
Fun fact, a lot of wonderful scientific illustrations you see in the 19th century natural science publications, were done by women, usually spouses of the researchers as uncredited free labour. The famous finches, came from John Gould, his wife, Elizabeth, illustrated his ornithology books.
Parasitic helminth found in the recently deceased Java Rhino translocated to Ujung Kulon National Park Indonesia. From press release at Ujung Kulon National Park instagram page.
November 29, 2025 at 1:22 PM
Parasitic helminth found in the recently deceased Java Rhino translocated to Ujung Kulon National Park Indonesia. From press release at Ujung Kulon National Park instagram page.
Reposted by Erick Arrashy Rudianto
Codonobdella is a genus of leech found in the depths of Lake Baikal - there are three different species, and unlike most leeches which feed on vertebrate animals, Codonobdella is a parasite of amphipods
#Invertebrate 🧪
www.sciencedirect.com/science/arti...
#Invertebrate 🧪
www.sciencedirect.com/science/arti...
November 17, 2025 at 2:57 AM
Codonobdella is a genus of leech found in the depths of Lake Baikal - there are three different species, and unlike most leeches which feed on vertebrate animals, Codonobdella is a parasite of amphipods
#Invertebrate 🧪
www.sciencedirect.com/science/arti...
#Invertebrate 🧪
www.sciencedirect.com/science/arti...
Reposted by Erick Arrashy Rudianto
Hear ye, hear ye!
Come get your biblically accurate crustacean from the deep, named after the Greek goddess of victory.
#Invertebrate 🧪
dailyparasite.blogspot.com/2023/05/dend...
Come get your biblically accurate crustacean from the deep, named after the Greek goddess of victory.
#Invertebrate 🧪
dailyparasite.blogspot.com/2023/05/dend...
<i>Dendrogaster nike</i>
Parasitic crustaceans can evolve into some pretty funky forms and they have been featured multiple times on this blog. These crustacean...
dailyparasite.blogspot.com
November 22, 2025 at 1:20 AM
Hear ye, hear ye!
Come get your biblically accurate crustacean from the deep, named after the Greek goddess of victory.
#Invertebrate 🧪
dailyparasite.blogspot.com/2023/05/dend...
Come get your biblically accurate crustacean from the deep, named after the Greek goddess of victory.
#Invertebrate 🧪
dailyparasite.blogspot.com/2023/05/dend...
Astaghfirullah, went to Blok M for a quick cash grab, but ended up eyeing a secondhand bookstore and now I've got
unexpected expenses. At least I've got Stephen Jay Gould's book now...
unexpected expenses. At least I've got Stephen Jay Gould's book now...
November 23, 2025 at 12:39 AM
Astaghfirullah, went to Blok M for a quick cash grab, but ended up eyeing a secondhand bookstore and now I've got
unexpected expenses. At least I've got Stephen Jay Gould's book now...
unexpected expenses. At least I've got Stephen Jay Gould's book now...
Reposted by Erick Arrashy Rudianto
I've written a post about a tiny monster, a copepod which is monstrous by name and by nature.
It has no mouth and it must mate. As a juvenile, it lives in the body of a worm, and when it reaches adulthood, it pops out like a tiny xenomorph.
#Invertebrate 🧪
dailyparasite.blogspot.com/2025/11/cymb...
It has no mouth and it must mate. As a juvenile, it lives in the body of a worm, and when it reaches adulthood, it pops out like a tiny xenomorph.
#Invertebrate 🧪
dailyparasite.blogspot.com/2025/11/cymb...
<i>Cymbasoma</i> sp.
Floating amidst the ocean's plankton is a tiny monster, it has no mouth and it must mate, after which it will give birth to a new generation...
dailyparasite.blogspot.com
November 12, 2025 at 12:30 PM
I've written a post about a tiny monster, a copepod which is monstrous by name and by nature.
It has no mouth and it must mate. As a juvenile, it lives in the body of a worm, and when it reaches adulthood, it pops out like a tiny xenomorph.
#Invertebrate 🧪
dailyparasite.blogspot.com/2025/11/cymb...
It has no mouth and it must mate. As a juvenile, it lives in the body of a worm, and when it reaches adulthood, it pops out like a tiny xenomorph.
#Invertebrate 🧪
dailyparasite.blogspot.com/2025/11/cymb...
Reposted by Erick Arrashy Rudianto
Did you know. That the meme-explosion that was the wooden model of Sacabambaspis (an Ordovician jawless fish) held at a Museum in Helsinki, was created by a pioneering Estonian fish paleontologist and palaeoartist, Elga Mark-Kurik. 🧵
November 11, 2025 at 4:08 AM
Did you know. That the meme-explosion that was the wooden model of Sacabambaspis (an Ordovician jawless fish) held at a Museum in Helsinki, was created by a pioneering Estonian fish paleontologist and palaeoartist, Elga Mark-Kurik. 🧵
Reposted by Erick Arrashy Rudianto
Relic worms for relic fishes:
Gyrocotylideans are an ancient group of parasitic flatworms which are related to tapeworms. Appropriately enough, these frilly worms live in the gut of an ancient host - the holocephalans (ratfish), also known as Chimaeras
#Invertebrate 🧪
www.nature.com/articles/s41...
Gyrocotylideans are an ancient group of parasitic flatworms which are related to tapeworms. Appropriately enough, these frilly worms live in the gut of an ancient host - the holocephalans (ratfish), also known as Chimaeras
#Invertebrate 🧪
www.nature.com/articles/s41...
November 10, 2025 at 3:11 AM
Relic worms for relic fishes:
Gyrocotylideans are an ancient group of parasitic flatworms which are related to tapeworms. Appropriately enough, these frilly worms live in the gut of an ancient host - the holocephalans (ratfish), also known as Chimaeras
#Invertebrate 🧪
www.nature.com/articles/s41...
Gyrocotylideans are an ancient group of parasitic flatworms which are related to tapeworms. Appropriately enough, these frilly worms live in the gut of an ancient host - the holocephalans (ratfish), also known as Chimaeras
#Invertebrate 🧪
www.nature.com/articles/s41...
Reposted by Erick Arrashy Rudianto
#MolluscMonday Balanced on a wall beneath the ice-cream parlour at Aubeterre (Charente, France) is a fossil of the large rudist bivalve Hippurites, probably collected from a local field underlain by Campanian limestones.
November 10, 2025 at 7:30 AM
#MolluscMonday Balanced on a wall beneath the ice-cream parlour at Aubeterre (Charente, France) is a fossil of the large rudist bivalve Hippurites, probably collected from a local field underlain by Campanian limestones.
Reposted by Erick Arrashy Rudianto
Excellent write up by @geosociety.bsky.social describing grant funded research by former post-doc Claudia Nunez-Penichet now @vt-invasivespecies.bsky.social on impending #marine #extinction threat www.geosociety.org/GSA/News/pr/... @kubiology.bsky.social @researchatku.bsky.social @kunhm.bsky.social
GSA News Release 25-17
A Warming Climate Could Decimate Mollusk Populations in the Western Atlantic
www.geosociety.org
October 30, 2025 at 5:50 PM
Excellent write up by @geosociety.bsky.social describing grant funded research by former post-doc Claudia Nunez-Penichet now @vt-invasivespecies.bsky.social on impending #marine #extinction threat www.geosociety.org/GSA/News/pr/... @kubiology.bsky.social @researchatku.bsky.social @kunhm.bsky.social
Reposted by Erick Arrashy Rudianto
How much stress would a wood beetle get if the wood beetle was filled with worms?
Horned passalus beetles can have dozens to thousands of worms squirming inside them - and these worms can affect how their host responds to stress
#invertebrate 🧪
dailyparasite.blogspot.com/2023/06/chon...
Horned passalus beetles can have dozens to thousands of worms squirming inside them - and these worms can affect how their host responds to stress
#invertebrate 🧪
dailyparasite.blogspot.com/2023/06/chon...
<i>Chondronema passali</i>
The horned passalus beetle ( Odontotaenius disjunctus ) is an insect that is commonly found in rotting logs. These beetles do more than jus...
dailyparasite.blogspot.com
October 26, 2025 at 1:19 AM
How much stress would a wood beetle get if the wood beetle was filled with worms?
Horned passalus beetles can have dozens to thousands of worms squirming inside them - and these worms can affect how their host responds to stress
#invertebrate 🧪
dailyparasite.blogspot.com/2023/06/chon...
Horned passalus beetles can have dozens to thousands of worms squirming inside them - and these worms can affect how their host responds to stress
#invertebrate 🧪
dailyparasite.blogspot.com/2023/06/chon...
This particular lutjanid individual was co-infected by three ectoparasitic groups, lernanthropid copepods, gnathiid isopods, and monogeneans
October 14, 2025 at 9:34 AM
This particular lutjanid individual was co-infected by three ectoparasitic groups, lernanthropid copepods, gnathiid isopods, and monogeneans
Reposted by Erick Arrashy Rudianto
Apply for RGGS Postdoctoral Fellowships at the American Museum of Natural History. Open to Ph.D. graduates in various research areas. Deadline: 11/15/2025. More info: https://www.amnh.org/research/richard-gilder-graduate-school/fellowships #postdoc
October 9, 2025 at 5:52 AM
Apply for RGGS Postdoctoral Fellowships at the American Museum of Natural History. Open to Ph.D. graduates in various research areas. Deadline: 11/15/2025. More info: https://www.amnh.org/research/richard-gilder-graduate-school/fellowships #postdoc
Reposted by Erick Arrashy Rudianto
⚡Shocking truth⚡ about fish lice:
I've written a post about Dolops discoidalis, a species of fish louse which also happens to be the first ectoparasite to be documented from the electric eel 🧪
#Invertebrate
dailyparasite.blogspot.com/2025/10/dolo...
I've written a post about Dolops discoidalis, a species of fish louse which also happens to be the first ectoparasite to be documented from the electric eel 🧪
#Invertebrate
dailyparasite.blogspot.com/2025/10/dolo...
<i>Dolops discoidalis</i>
The electric eel , also known as poraquê , is a formidable animal. Not only is it capable of stunning its prey with an electrifying shock, ...
dailyparasite.blogspot.com
October 9, 2025 at 3:45 AM
⚡Shocking truth⚡ about fish lice:
I've written a post about Dolops discoidalis, a species of fish louse which also happens to be the first ectoparasite to be documented from the electric eel 🧪
#Invertebrate
dailyparasite.blogspot.com/2025/10/dolo...
I've written a post about Dolops discoidalis, a species of fish louse which also happens to be the first ectoparasite to be documented from the electric eel 🧪
#Invertebrate
dailyparasite.blogspot.com/2025/10/dolo...
Reposted by Erick Arrashy Rudianto
If you’re interested in practicing the philosophy of science in practice why not come along to an online workshop “the philosophy of science in practice - in practice”? #philsci
October 8, 2025 at 1:01 PM
If you’re interested in practicing the philosophy of science in practice why not come along to an online workshop “the philosophy of science in practice - in practice”? #philsci
Reposted by Erick Arrashy Rudianto
Hirudinella is a genus of stomach flukes which are usually associated with the Wahoo. But species in this genus can be found in a wide range of pelagic fishes, including the Pacific bluefin tuna 🧪
#Invertebrate
www.researchgate.net/publication/...
#Invertebrate
www.researchgate.net/publication/...
October 6, 2025 at 4:42 AM
Hirudinella is a genus of stomach flukes which are usually associated with the Wahoo. But species in this genus can be found in a wide range of pelagic fishes, including the Pacific bluefin tuna 🧪
#Invertebrate
www.researchgate.net/publication/...
#Invertebrate
www.researchgate.net/publication/...
My friend who is studying in Germany gifted me this book. Thank you 🥺
October 4, 2025 at 1:54 PM
My friend who is studying in Germany gifted me this book. Thank you 🥺
Reposted by Erick Arrashy Rudianto
Crouching Parrot, Hidden Louse:
The Kyloring (Pezoporus flaviventris) is a critically endangered species of Australian parrot, and it is host to Forficuloecus pezopori - a species of louse which lives only on the Kyloring and nowhere else.
#Invertebrate 🧪
dailyparasite.blogspot.com/2024/06/forf...
The Kyloring (Pezoporus flaviventris) is a critically endangered species of Australian parrot, and it is host to Forficuloecus pezopori - a species of louse which lives only on the Kyloring and nowhere else.
#Invertebrate 🧪
dailyparasite.blogspot.com/2024/06/forf...
<i>Forficuloecus pezopori</i>
Parasites are a major part of biodiversity, but they spend most of their time hidden in plain sight. Even with some animals that have been k...
dailyparasite.blogspot.com
September 26, 2025 at 1:53 AM
Crouching Parrot, Hidden Louse:
The Kyloring (Pezoporus flaviventris) is a critically endangered species of Australian parrot, and it is host to Forficuloecus pezopori - a species of louse which lives only on the Kyloring and nowhere else.
#Invertebrate 🧪
dailyparasite.blogspot.com/2024/06/forf...
The Kyloring (Pezoporus flaviventris) is a critically endangered species of Australian parrot, and it is host to Forficuloecus pezopori - a species of louse which lives only on the Kyloring and nowhere else.
#Invertebrate 🧪
dailyparasite.blogspot.com/2024/06/forf...
Reposted by Erick Arrashy Rudianto
There's a species of apicomplexan parasite called Siedleckia nematoides which looks like microscopic version of those soft plastic grub fishing lure🧪
journals.plos.org/plosone/arti...
journals.plos.org/plosone/arti...
October 2, 2025 at 11:53 PM
There's a species of apicomplexan parasite called Siedleckia nematoides which looks like microscopic version of those soft plastic grub fishing lure🧪
journals.plos.org/plosone/arti...
journals.plos.org/plosone/arti...
This is my first time seeing alive lernanthropid copepod (possibly Lernanthropus latis)!
September 27, 2025 at 3:15 PM
This is my first time seeing alive lernanthropid copepod (possibly Lernanthropus latis)!
Reposted by Erick Arrashy Rudianto
Some little circus performers. #protistsonsky
September 20, 2025 at 4:02 PM
Some little circus performers. #protistsonsky
Reposted by Erick Arrashy Rudianto
#MolluscMonday Photographed at Hampton Court Palace last week, orthocone nautiloids in paving slabs of Swedish Ordovician limestone. A microfault crosses the chambered phragmocone of one. The other fossil may represent a siphuncular structure but comments would be welcomed.
September 22, 2025 at 7:06 AM
#MolluscMonday Photographed at Hampton Court Palace last week, orthocone nautiloids in paving slabs of Swedish Ordovician limestone. A microfault crosses the chambered phragmocone of one. The other fossil may represent a siphuncular structure but comments would be welcomed.
Some parasitic copepods and a gnathiid isopod that I found during fieldwork in Alor.
September 16, 2025 at 3:19 PM
Some parasitic copepods and a gnathiid isopod that I found during fieldwork in Alor.
Transit in Kupang
September 12, 2025 at 11:57 PM
Transit in Kupang