exam 2 taxa

habronema

non-filarid spirurids that infect equids

thelazia

• eyeworms

• non-filarid spirurids

• many different species → infect many hosts

dracunculus

• “guinea worm”

• non-filarid spirurid that infects domestic and wild carnivores

physaloptera

non-filarid spirurid that infects canids/felids, other carnivores; stomach worm

dirofilaria immitis

• heartworm (filarid spirurid)

• primarily infects dogs; other mammals including cats

acanthocheilonema

heartworm “mimic” (filarid spirurid)

onchocerca

filarid spirurid that infects horses, cattle, and dogs

acanthocephala

thorny-headed worms

macracanthorhynchus

genus that causes porcine acanthocephaliasis

platyhelminthes

• flatworms

• include trematodes (flukes) and cestodes (tapeworms)

trematodes

flukes

fasciola hepatica

• common liver fluke

• most common fluke

• large animal fluke → small ruminants and cattle

fascioloides magna

• deer liver fluke

• large animal fluke → small ruminants and cattle

paragonimus

• lung fluke

• small animal fluke (dogs and cats; mink; sometimes people)

nanophyetus

• salmon poisoning fluke

• vector for neorickettsia (bacterial agent of salmon poisoning disease)

• infects carnivores (dogs, wolves, foxes); small animal fluke

alaria

• causes intestinal trematodiasis

• small animal fluke (dogs and cats; mink and wild canids)

schistosomatidae

• blood flukes

• genus of interest: heterobilharzia

heterobilharzia

• genus of blood flukes that infects dogs and cats (raccoons as wild reservoir); small animal fluke

• responsible for cercarial dermatitis aka swimmer’s itch

cestoda

tapeworms

cyclophyllidea

terrestrial cestodes

pseudophyllidea

aquatic cestodes

neorickettsia

• bacterial agent of salmon poisoning disease

• live within nanophyetus and causes salmon poisoning idsease

• zoonotic

diphyllobothrium

• broad fish tapeworm; infects dogs & cats

• pseudophyllidean cestode

• plerocercoid metacestode stage

spirometra

• pseudophyllidean cestode

• plerocercoid or spargana metacestode stage

taenia pisiformis

canine tapeworm

taenia taeniaeformis

feline tapeworm

taenia saginata

beef tapeworm

taenia solium

pork tapeworm

echinococcus granulosus

causes unilocular hyatid disease in dogs

echinococcus multilocularis

causes alveolar hydatid disease in dogs and cats

dipylidium caninum

• double-pore tapeworm → two lateral genital pores

• two sets of reproductive organs per proglottid

• most common tapeworm (dogs & cats)

mesocestoides

• small tapeworm of dogs and cats

• medial genital pore

• parauterine organ

moniezia

cestode genus that infects large and small ruminants

anoplocephala perfoliata

cestode that infects equids