Larval Stages
Life Cycle Stage: Infectivity
Intermediate Hosts
Reservoir / Definitive Hosts
Taxa
100

The larval stage(s) that parasitizes vertebrate hosts

What is the plerocercoid, hydatid cyst, cysticercus, cercaria, and/or metacercaria

100

The life cycle stage responsible for Clam Digger's Itch

What is the cercariae

100

The animal that is the potential second intermediate host for Clonorchis sinensis

What is the freshwater fish

100

The reservoir host of the parasite that causes Clam digger's itch

What is the marine bird

100

A class of neodermatans that only include one species known to parasitize a mammal

What is monogenea

200

The larval stage that is found in all digeneans except for schistosomes

What is the metacercaria

200

The life cycle stage responsible for Schistosomiasis

What is the egg stage

200

The typical intermediate host for parasites of the genus Schistosoma

What is the snail

200

The potential reservoir host for Schistosoma haematobium

None

200

A monogenean superorder whose members bear undivided haptors that never bear clamps

What is the Monopisthocotylea

300

The larval stage that is found in all members of the class Cestoda

What is the hexacanth

300

The life cycle stage responsible for Paragonomiasis

What is the adult stage

300

The animal that is the potential second intermediate host for Paragonimus kellicotti

What is the crayfish

300

The reservoir host for Paragonimus westermani

What is the tiger

300

A monozoic non-proglottized order that parasitizes ratfish

What is Gyrocotylidea

400

The larval stage that is found only in members of the class Monogenea

What is the oncomiracidium

400

The life cycle stage responsible for Clonorchiasis

What is the adult stage

400

The animal(s) that serves as an intermediate host for the parasite that causes Sparganosis

What is the snake, freshwater fish, and/or frog

400

The animal that serves as a host for Aspidogaster

What is the freshwater mussel

400

A digenean genus that never encysts in or on anything

What is Schistosoma

500

The larval stage(s) that undergoes simultaneous polyembryony

What is the sporocyst / redia

500

The life cycle stage of the parasite responsible for the presence of multiple limbs in frogs

What is the metacercariae cyst

500

The intermediate host of the liver fluke Fascioloides magna

What is the freshwater snail 

500

The animal(s) that serve as a definitive host for Diphyllobothrium

What is the bear, orca, cat, dog, and/or tiger

500

A monoecious trematode species that occurs in pairs in the lungs of its definitive host

What is the Paragonimus westermani

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