A Global Mission

The mission of the Ocean Census is to accelerate the discovery of ocean life to advance fundamental science, empower conservation, and fuel innovation for the future of our planet.

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Gallery

Phylum

OC-SP-0002640

Species ID

OC-SP-0002640

Discovered

Phylum

Platyhelminthes

Species ID

OC-SP-0002640

Provisional Species Name

Polycystididae sp_IRLBB_00548

Lowest Valid Taxon Name in WoRMS

Polycystididae

Lowest Known Rank

Family

Status

Discovered

Does the taxonomist(s) intend to work on this material further?

2. I/We already have plans to publish. (For marine invertebrates please know that SOSA could support you in this too - please click the button for more details).

Embargo

No

Kingdom

Animalia

Phylum

Platyhelminthes

Order

Rhabdocoela

Family

Polycystididae

Taxonomic Remarks

As previously noted, Polycystididae sp.2 differs from Polycystididae sp.1 in stylet morphology. In Polycystididae sp.2, the stylet bends almost distally and exhibits subterminal lateral dilatations, whereas in Polycystididae sp.1 it bends at midlength and lacks such dilatations.

Received All Minimal Data for Discovery

01/04/2026

Description of Material

Polycystididae sp.2 is characterised by a type II prostate vesicle connected to a type II prostate stylet. The ejaculatory duct opens distally into the male atrium (divisa-type). The female system includes a type I female duct, and an insemination duct connects the female bursa to each ovary. The spermatic ducts are filled with sperm, functioning as seminal receptacles. The stylet measures 133 µm in length, bends distally, and bears subdistal lateral projections.

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.

Join the census

The Ocean Census Alliance unites national and philanthropic marine institutes, museums, and universities, backed by governments, philanthropy, business and civil society partners.