Species ID
OC-SP-0002632
Discovered
Phylum
Platyhelminthes
Species ID
OC-SP-0002632
Provisional Species Name
Macrostomorpha sp_IRLBB_00541
Lowest Valid Taxon Name in WoRMS
Macrostomorpha
Lowest Known Rank
Superorder
Status
Discovered
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Embargo
No
Kingdom
Animalia
Phylum
Platyhelminthes
Taxonomic Remarks
Macrostomorpha sp.1 represents a unique taxon within Macrostomorpha. It shows a glandular epidermis and a male copulatory bulb located in the posterior most part of the body. The bulb is armed of a stylet and received the discharge of two seminal vesicles. The sperm of this species, which is fusiform, without bristles, feeler or brush, indicates a close relationship with species of Bradynectes. However, in species Bradynectes, and all other species of the related Dolichomacrostomidae, a single seminal vesicle discharges into the male bulb. Thus, I cannot provide a genus level classification for the new species.
Received All Minimal Data for Discovery
01/04/2026
Description of Material
Species of Macrostomorpha without eyes and a very glandular epidermis, making difficult the observation of the internal anatomy. Male copulatory organ located terminally in the body, directed forward. The male bulb receives two seminal vesicles and contains a prostate vesicle and a stylet. Prostate vesicle containing two types of glands. The stylet is tubular, proximally curved and forming a funnel, slightly tapering a distal sharp tip, 138 µm long. Sperm fusiform, without any additional structure such bristles or brush, 43 µm long.
Ecology
Medium-grained and well-sorted sand, 10 m deep, salinity 37 ‰.
Distribution
United States of America, Florida, 6.75 km SE from the mouth of Fort Pierce Inlet, 27.429300; -80.241083.
Scientific Name Authorship
Diez, Yander L.
Specimens
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