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Secernenteans: Secernentea - Physical Characteristics, Behavior And Reproduction, Secernenteans And People, Canine Heartworm (dirofilaria Immitis): Species Accounts - GEOGRAPHIC RANGE, HABITAT, DIET, CONSERVATION STATUS

live hosts soil habitats

CANINE HEARTWORM (Dirofilaria immitis): SPECIES ACCOUNTS
RAT LUNGWORM (Angiostrongylus cantonensis): SPECIES ACCOUNTS

Secernenteans live all over the world.


Most secernenteans live in plant and animal hosts in all types of land habitats. They are rarely found in the sea or in freshwater habitats. Species that are not parasites often live in the soil.


Secernenteans feed on blood, body fluid, intestinal contents, and mucus in their hosts. They eat bacteria, fungi, and other growths in the soil.

Secernenteans are not considered threatened or endangered.

Additional Topics

Secernenteans: Secernentea - Physical Characteristics

Secernenteans: Secernentea - Behavior And Reproduction

Secernenteans: Secernentea - Secernenteans And People

Secernenteans: Secernentea - Canine Heartworm (dirofilaria Immitis): Species Accounts

Physical characteristics: Female canine heartworms are 10 to 12 inches (25 to 30 centimeters) long and about 0.2 inch (5 millimeters) wide. Males are about half the size of females. Geographic range: Canine heartworms live all over the world. Because they are found throughout the world, no distribution map is provided. Habitat: Canine heartworms live mainly in warm areas. The primary hosts, also c…

Secernenteans: Secernentea - Rat Lungworm (angiostrongylus Cantonensis): Species Accounts

Physical characteristics: Adult rat lungworms are 0.8 to 1.3 inches (20 to 34 millimeters) long and 0.01 to 0.02 inch (320 to 560 micrometers) wide. The females are larger than the males. Geographic range: Rat lungworms live all over the world in warm areas. Because they are found throughout the world, no distribution map is provided. Habitat: The primary hosts of rat lungworms are rats. The inter…

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