Diamond Bay - Sorrento (ocean side);31 - Nemertea;BQDAC0020;MRG903-23;Tetrastemma sp. SMSA011;SMSA011;SP02608;AN020891;NMVF290197;PID0200226
Species ID
OC-SP-0002960
Discovered
Phylum
Nemertea
Species ID
OC-SP-0002960
Provisional Species Name
Tetrastemma sp_SMSA011
Lowest Valid Taxon Name in WoRMS
Tetrastemma
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
Tetrastemmatidae
Genus
Tetrastemma
Date Identified
20/01/2026
Taxonomic Remarks
Resembles another local undescribed species Tetrastemma sp. SMSA006 from which it can be differentiated by the smaller size, bulbous stylet basis, different habitat (exposed ocean locations only in central Victoria, as opposed to sheltered bays), and by COI sequence data.
Received All Minimal Data for Discovery
08/04/2026
Description of Material
Body 5 to 12 mm long, 0.25 to 0.8 mm wide, golden yellow, semitranslucent. Cephalic lobe slightly wider or same width as neck, rounded, 1.4 times longer than it is wide, separated from body by neck furrow. Prominent oblique cerebral organ furrows visible dorsally and ventrally. Two pairs of ocelli. Posterior tip bluntly pointed. Rhynchocoel extends to near posterior tip. Stylet basis is a bulbous pear shape, widest at its distal rounded end. S/B = 0.5. Two accessory stylet sacs with 1 or 2 stylets each.
Ecology
Found in various species of weed on exposed coasts in the intertidal zone.
Distribution
Harmer’s Haven to Diamond Bay, Victoria, Australia.
Scientific Name Authorship
Maslakova, Svetlana
Diamond Bay - Sorrento (ocean side);31 - Nemertea;BQDAC0020;MRG903-23;Tetrastemma sp. SMSA011;SMSA011;SP02608;AN020891;NMVF290197;PID0200226
Specimens
Additional Material
No Image yet…
AFLA_F290188
Family
Tetrastemmatidae
Additional Material
No Image yet…
AFLA_F290195
Family
Tetrastemmatidae
Additional Material
No Image yet…
AFLA_F290196
Family
Tetrastemmatidae
Primary Voucher
AFLA_F290197
Family
Tetrastemmatidae
Additional Material
No Image yet…
AFLA_F290198
Family
Tetrastemmatidae
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