Exercise 2: Family Fasciolidae

bile ducts

liver

intestines

Family Fasciolidae

• includes large flukes that are parasitic in the _____, _____, and _____ of mammals

broad

leaf-shaped

spiny tegument

Family Fasciolidae

• their body is _____, _____, and usually with a _____

liver flukes

most members of this family are known as _____

Fasciola gigantica

most common liver fluke of ruminants in Asia and Africa including the Philippines

giant liver fluke

tropical liver fluke

Fasciola gigantica common name (2)

bile ducts

cattle

water buffaloes

goats

Fasciola gigantica

• it occurs in the _____ of _____, _____, _____, and other ruminants

fasciolosis

liver fluke disease

liver rot

Fasciola gigantica

• the disease it causes and also by F. hepatica, is known as: (3)

low power of the microscope

binocular dissecting microscope (stereomicroscope)

Fasciola gigantica

• details can be seen properly with _____ or using a ______

highly branched (dendritic)

extensive

Fasciola gigantica

• note the _____ ceca, testes, and ovary and _____ vitelline glands

operculum

embryo

yolk balls

Fasciola gigantica

• locate the(3) in a preserved fecal sample

Lymnaea auricularia rubiginosa

Radix rubiginosa

the intermediate host of F. gigantica in the Philippines is _____ with the currently accepted name, _____

rust-colored

air-breathing pond snail

Lymnaea auricularia rubiginosa/Radix rubiginosa characteristics (2)

air-breathing pond snail

common name for members of the Family Lymnaeidea

right

R. rubiginosa opening is directed to the _____

sporocyst

redia

cercaria

stages of Fasciola (3) of the gymnocephalous morphotype

metacercariae

if mature cercariae are present, place some on a slide and allow them to encyst as _____

Fasciola hepatica

most common in other countries especially in temperate regions

common liver fluke

sheep liver fluke

F. hepatica common name (2)

bile ducts

ruminants

F. hepatica

• occurs in the _____ of _____ and other animals

cone

shoulders

F. hepatica

• anterior end - _____

• degree of development of the “_____”

F. nianzae

F. tragelaphi

other species of Fasciola (2)

hippopotamus

F. nianzae - in _____ in Africa

Tragelaphus spekei (marshback or sitatunga)

F. tragelaphi - in _____ in Africa

Fascioloides magna

large American liver fluke

sometimes deer liver fluke

liver

wild and domestic ruminants

horses

pigs

Fascioloides magna

• it occurs in the _____ of _____, _____, and _____ in North America and Europe

Fossaria spp.

Lymnaea bulimoides teckela

Pseudosucinea

Columella

Stagnicola spp.

intermediate hosts of Fascioloides magna (5)

Asian elephants (Elephas maximus)

Fascioloides (formerly Fasciola) jacksoni - in _____ in Indo-Pakistan and Sri Lanka

Fasciolopsis buski

giant intestinal fluke

small intestine

man

pigs

Fasciolopsis buski

• occurs in the _____ of _____ and _____ in Asia and the Indian subcontinent

Planorbis

Segmentina

intermediate hosts of Fasciolopsis buski (2) genera under Family Planorbidae

ram’s horn snails

common name for members under the Family Planorbidae

calthrop

water chestnut

Fasciolopsis buski

• cercariae that encyst as metacercariae on edible water plants such as ______ and _____, are the main source of infection for the definitive hosts

Trapa natans

Trapa bicornis

calthrop

Eliocharis tuberosa

water chestnut

gallbladder

digestive tract

elk

wild goats

Parafasciolopsis fasciolaemorpha

• occurs in the ______ and ______ of _____ and _____ in Russia and Poland

Planorbis (Coretus) corneus

intermediate host of Parafasciolopsis fasciolaemorpha (1)