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-0002898

Species ID

OC-SP-0002898

Discovered

Phylum

Nemertea

Species ID

OC-SP-0002898

Provisional Species Name

Balionemertes sp_SMTM039

Lowest Valid Taxon Name in WoRMS

Balionemertes

Lowest Known Rank

Genus

Status

Discovered

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

3. I/We are not sure yet. This is of course no problem, we will display your species info (if not embargoed) while you work out your species description plan.

Embargo

No

Kingdom

Animalia

Phylum

Nemertea

Class

Palaeonemertea

Order

Archinemertea

Family

Cephalotrichellidae

Genus

Balionemertes

Date Identified

25/07/2025

Taxonomic Remarks

Morphologically and behaviourally (the worm crawls on the anatomically dorsal side), resembles species in the Balionemertes australiensis cryptic species complex, but COI sequence divergence from the nearest congener is >9%, suggesting Timor species is distinct from previously discovered species.

Received All Minimal Data for Discovery

08/04/2026

Description of Material

Body 80 mm long, 0.3-0.7 mm wide, thread-like; base color opaque white, with brown mottling forming more or less regular broad transverse bands which are interrupted by narrower bands of background color. Color is darker on the anatomically ventral (functionally dorsal) side. With six groups of ocelli — two ventral and two dorsal located anteriorly on the cephalic love, and two lateral, located more posteriorly. Cephalic lobe same width as adjacent body, with a distinct bluntly rounded anterior tip.

Ecology

Associated with coral rubble.

Distribution

Only known from Atauro Island, Timor-Leste.

Scientific Name Authorship

Maslakova, Svetlana

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