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Description:
M. crozierae is a large flatworm that
attains a length of 2 inches. Two V-shaped tentacles on the head are formed from folds in the anterior portion of the body. Two clusters of
multiple eyespots in the brain of this animal are visible directly behind the
tentacles. The body color is tan to grey, heavily pigmented with characteristic
brown stripes.
Habitat:
Tiger flatworms occur with colonies of mangrove tunicates (Ecteinascidia turbinata), which
are the
sole food source of this species. Primary habitat for mangrove tunicates
includes mangrove roots, seawalls, docks, pilings, or any hard substratum in
relatively calm waters. Two individuals may occur per colony of tunicates.
Range:
M. crozierae is a tropical
species that ranges from South Carolina to the Caribbean and
Bermuda. M. crozierae is common throughout the IRL.
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Maritigrella crozierae: two
adults copulating. Photo courtesy of: Newman & Flowers,
Smithsonian Institution (NMNH). |
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The tiger flatworm is a hermaphrodite but often mates with other individuals
using a method called hypodermic insemination in which mates exchange sperm
by stabbing each other with their penises.
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