North Road Boat Ramp Brighton;31 - Nemertea;BQDAC0020;MRG922-08;Tetrastemma sp. SMSA007;SMSA007;SP03396;AN022158;NMVF290312;PID0235732
Species ID
OC-SP-0002958
Discovered
Phylum
Nemertea
Species ID
OC-SP-0002958
Provisional Species Name
Tetrastemma sp_SMSA007
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 undescribed local species, Tetrastemma sp. SMSA003, from which it differs in lacking the dark markings behind the first pair of eyes, head width (same width as opposed to wider than neck), and in lacking prominent cerebral organ furrows. It can also be differentiated by its habitat (brown weed in sheltered bays, as opposed to coralline algae on exposed shores), as well as COI sequence data.
Received All Minimal Data for Discovery
08/04/2026
Description of Material
Body 6 mm long, 0.5 mm wide, light beige, semitranslucent, with an interrupted opaque white mid-dorsal line which extends from the level of posterior pair of ocelli to posterior tip. Cephalic lobe same width as body, rounded, twice as long as it is wide, with no clear demarcation from the body (neck furrow indistinct). Inconspicuous cerebral organ furrows. Two pairs of relatively large ocelli. Posterior tip bluntly pointed. Stylet basis pear shaped, widest at its distal rounded end. S/B = 0.8. Two accessory stylet sacs with 2 stylets in each.
Ecology
Found only on brown weed growing on small jetty in the intertidal zone.
Distribution
Brighton, Victoria, Australia.
Scientific Name Authorship
Maslakova, Svetlana
North Road Boat Ramp Brighton;31 - Nemertea;BQDAC0020;MRG922-08;Tetrastemma sp. SMSA007;SMSA007;SP03396;AN022158;NMVF290312;PID0235732
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