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-0002904

Murrell's Beach - Cape Nelson;31 - Nemertea;BQDAF0055;Diplomma sp. SMSA031;SMSA031;SP02344;AN012541;NMVF202138;PID0074997

Murrell's Beach - Cape Nelson;31 - Nemertea;BQDAF0055;Diplomma sp. SMSA031;SMSA031;SP02344;AN012541;NMVF202138;PID0074997

Species ID

OC-SP-0002904

Discovered

Phylum

Nemertea

Species ID

OC-SP-0002904

Provisional Species Name

Diplomma sp_SMSA031

Lowest Valid Taxon Name in WoRMS

Diplomma

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

Hoplonemertea

Order

Monostilifera

Family

Oerstediidae

Genus

Diplomma

Date Identified

31/12/2025

Taxonomic Remarks

Body shape and color resembles Diplomma serpentinum, a species globally distributed in the warm waters (Indo-West Pacific, Caribbean, Easter Tropical Pacific), but can be differentiated from it by the COI sequence data.

Received All Minimal Data for Discovery

08/04/2026

Description of Material

Body 25 mm long, 0.5 mm wide. Dorsally uniform chestnut red or mahogany, fading to orange ventrally. Cephalic lobe diamond shaped, slightly wider than adjacent body, separated from it by a prominent V-shaped dorsal neck furrow, with a translucent margin. A number of small reddish ocelli visible on anterior half of cephalic lobe, obscured by epidermal pigmentation. Cerebral organ furrows inconspicuous. Stylet characteristics not recorded.

Ecology

Intertidal.

Distribution

Only known from Murrel’s Beach, Victoria, Australia.

Scientific Name Authorship

Maslakova, Svetlana

Murrell's Beach - Cape Nelson;31 - Nemertea;BQDAF0055;Diplomma sp. SMSA031;SMSA031;SP02344;AN012541;NMVF202138;PID0074997

Murrell's Beach - Cape Nelson;31 - Nemertea;BQDAF0055;Diplomma sp. SMSA031;SMSA031;SP02344;AN012541;NMVF202138;PID0074997

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.