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Sayuri the Zygocercous Monster Girl

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It's time for another Parasite Monster Girl! Meet Sayuri the Zygocercous Monster Girl.

This one is based parasitic flukes that have zygocercous-type larval stages. You might be thinking "What the hecking flip is a zy-go-sir-what?" - if that's the case, you are far from being alone in thinking that. Most people would not have heard about these thing - in fact, most parasitologists, aside from some who have worked on and know a fair bit about the diversity of digenean trematode (parasitic flukes) would know they even exist. I wrote about one such species here.

The cercariae of most species of flukes leave their snail hosts as free-swimming individuals (called cercariae) that head out independently to infect the next host in their life-cycle. But there are some flukes which have cercariae that tie the ends of their tails together, and aggregate into a conjoined swarm. You can see a video of one such aggregate here. They are also called "rat king cercaria" or Rattenkönig - because of their resemblance to the phenomenon whereby the tails of a number of rats become interwined [link].

The technical term used to describe those species is "zygocercous" (this only describe their habit of forming this aggregation swarm and is not intended to reflect their evolutionary relationship - so flukes that have zygocercous cercaria are not necessarily all closely related). Quite a few years ago I drew one such species here:
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You can also read more about those extraordinary flukes in the description of that piece.

I decided to name this Parasite Monster Girl "Sayuri" because it alludes to her nature in two ways. While "Sayuri" is somewhat reminiscent of "Zygocercous" when pronounced, more importantly "Sayuri" also means small lily - and the shape of some zygocercous cercariae swarms do resemble tiny flowers, with each individual cercaria being a petal. Furthermore, one of the way that you can write Sayuri in kanji is "小百合" - when you look at each of the kanji in Sayuri individually, you have "小" which means "small", "百" which means "hundred", and "合" which means "combined". Small, Hundred, and Combined are certainly fitting descriptors for a zygocercous cercariae ball.
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