Exercise 5: Family Dicrocoelidae

translucent tegument

well developed suckers

two intermediate hosts

land snails

arthropods

Family Dicrocoelidae

• this family contains flukes with a _____, _____, and _____

• 2 IH: _____ (first) and _____ (second)

Eurytrema

Dicrocoelium dendriticum

Platynosomum fastosum

genus and species under the Family Dicrocoelidae (3)

Eurytrema

• members are flukes occurring in the pancreatic duct and/or bile duct of cattle, buffaloes, sheep, and goats

• may be found in primates and man, carnivores, pigs, birds and other animals

Eurytrema pancreaticum

Eurytrema escuderoi

Eurytrema coelomaticum

species under the genus Eurytrema (3)

pancreatic duct

bile ducts

E. pancreaticum organ locations (2)

cattle

water buffaloes

sheep

man

E. pancreaticum definitive hosts (4)

triangular/tongue-like posterior/caudal appendage

simple

horizontal

posterior

behind the testes

posterior part of the body

laterally

elongate/clavate forms

E. pancreaticum

• presence of a _____

• intestinal ceca - _____

• testes - _____, lying slightly _____ to the level of the ventral sucker

• ovary - small and situated _____

• uterus - fills the _____

• vitelline glands - _____ situated and consist of _____

pancreatic ducts

E. escuderoi organ location

cattle

water buffaloes

E. escuderoi definitive hosts (2)

spherical/round grape-like clusters

E. escuderoi

• vitelline follicles - _____

pancreatic ducts

cattle

E. coelomaticum organ location and definitive host

equal in size

small round follicles

E. coelomaticum

• oral and ventral suckers - _____

• vitellaria - consist of _____

Bradybaena spp.

Cathaica ravida sieboldtiana

Acusta sieboldtiana

first IH of Eurytrema (3)

land snails

common name for Cathaica ravida sieboldtiana

Conocephalus spp.

Conocephalus maculatus

Oecanthus longicaudus (=O. longicauda)

second IH of Eurytrema (3)

spotted meadow katydid

common name for Conocephalus maculatus

tree cricket

common name for Oecanthus longicaudus (=O. longicauda)

Family Camaenidae

less than 2 cm

rounded

flattened

umbilicus (central depression)

snail hosts

• pulmonate terrestrial gastropod under the _____ (formerly F. Bradybaenidae)

• members are small (_____ in height)

• dorsal view - _____

• lateral view - somewhat _____

• visible _____ is present

lancet fluke

common name for Dicrocoelium dendriticum

bile ducts

Dicrocoelium dendriticum organ location

sheep

cattle

goats

deer

pigs

man

Dicrocoelium dendriticum definitive hosts (6)

Dicrocoelium dendriticum

this species does not occur in the Philippines

Zebrina detrita

Cochlicopa lubricella (=Cionella lubrica)

first IH of Dicrocoelium dendriticum (2)

Family Enidae

Family Cochlicopidae

principal terrestrial snail hosts

• Zebrina detrita - _____

• Cochlicopa lubricella (=Cionella lubrica) - _____

Formica

Protoformica

second IH of Dicrocoelium dendriticum (2)

wood ants

common name for Formica

Family Formicidae

Formica and Protoformica under the what family?

lizard poisoning fluke

common name for Platynosomum fastosum

liver

bile ducts

Platynosomum fastosum organ locations (2)

domestic and wild cats

Platynosomum fastosum definitive host

Subulina octona

first IH of Platynosomum fastosum

highly-turreted shell

Family Achatinidae

Subulina octona

• small pulmonate terrestrial gastropod with a _____ belonging to the _____

Anolis cristatelus

lizards

terrestrial isopods

second IH of Platynosomum fastosum (3)

crested anole

common name for Anolis cristatelus