|Central newt with zits - parasitized by a trematode, Clinostomum|
The central newt belongs to the amphibian family Salamandridae, a group of salamanders commonly referred to as newts. According to the Missouri Department of Conservation, it is the only species of newt found in Missouri. They are seldom numerous in ponds that harbor fish or that lack aquatic plants. Adult newts eat small aquatic invertebrates such as worms, small mollusks, insects, crayfish, salamander larvae, and small tadpoles.
|Central newt larvae - Wikipedia|
|Red eft phase - Wikimedia|
I will leave the rest up to Linda below.
|Eyeing an innocent pond snail - Linda Bower|
|Yellow grubs - Clinostomum metacercariae - S. Atkinson-Fishpathogens.net|
|"This science gives me a headache"|
“At that point, the parasite can detect its host being eaten and it immediately excysts (emerges) through the newt's skin. It needs to do this quickly because this particular parasite prefers to live in the bird's gular pouch, so it doesn't want to go through the gut. This is one of the few trematodes I know of whose metacercariae grow within the amphibian host, presumably so they are mature enough to immediately infect the bird once eaten.”The birds must urinate or defecate in the water to pass the parasite’s eggs while the adult parasites remain in the gular (throat) pouch.
OK, Linda, enough is enough.....even for a retired gastroenterologist.