Land planarian

Bipalium pennsylvanicum

ORDER

Tricladida

FAMILY

Bipaliidae

TAXONOMY

Bipalium pennsylvanicum Ogren, 1987, Pennsylvania, United States.

OTHER COMMON NAMES

None known.

PHYSICAL CHARACTERISTICS

Long, brownish yellow in color with three dorsal stripes; head is half-rounded or lunate, body retracted and coiled on self at rest, during locomotion over a flat dry surface, the body is greatly extended, undulates, and head is raised above surface moving from side to side; head bordered by numerous, small eyes that extend posteriorly along the body; mouth with eversi-ble pharynx located in mid-region of body; gonopore is just posterior to mouth.

DISTRIBUTION

Considered to be introduced into United States, it has only been found in Pennsylvania in outdoor habitats, though other species occur throughout eastern United States.

HABITAT

Lives in damp areas under stones and pieces of wood and are capable of over-wintering in soil where air temperatures reach freezing.

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