Harmers Haven - S of Wonthaggi;31 - Nemertea;BQDAC0020;MRG822-42;Tetrastemma sp. SMSA008;SMSA008;SP02591;AN016084;NMVF290163;PID0127643
Harmers Haven - S of Wonthaggi;31 - Nemertea;BQDAC0020;MRG822-42;Tetrastemma sp. SMSA008;SMSA008;SP02591;AN016084;NMVF290163;PID0127643
Species ID
OC-SP-0002959
Discovered
Phylum
Nemertea
Species ID
OC-SP-0002959
Provisional Species Name
Tetrastemma sp_SMSA008
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 several other local undescribed species of Tetrastemma sp. (e.g. Tetrastemma sp. SMSA006, Tetrastemma sp. SMSA011, Tetrastemma sp. SMSA019), but is easily distinguished by the yellow-orange patches over the first pair of eyes, cylindrical (as opposed to pear-shaped) basis, and by COI sequence data.
Received All Minimal Data for Discovery
08/04/2026
Description of Material
Body 9 to 22 mm long, 0.5 to 0.8 mm wide, light golden to orange, semi-translucent. Cephalic lobe slightly wider than neck, rounded, one third longer than wide, separated from body by a neck furrow, with two pairs of ocelli and a pair of yellow-orange patches covering the first pair. Prominent oblique cerebral organ furrows visible dorsally and ventrally. Posterior tip bluntly pointed. Proboscis tinged light-orange due to the presence of numerous pigment granules. Stylet basis cylindrical with rounded distal end, S/B = 1. Two accessory stylet sacs with 1 or 2 stylets in each.
Ecology
Found in coralline and other algae on exposed coasts in the intertidal zone.
Distribution
Found at Harmer’s Haven and at Pea Soup No 2 Beach, Port Fairy, Victoria, Australia.
Scientific Name Authorship
Maslakova, Svetlana
Harmers Haven - S of Wonthaggi;31 - Nemertea;BQDAC0020;MRG822-42;Tetrastemma sp. SMSA008;SMSA008;SP02591;AN016084;NMVF290163;PID0127643
Harmers Haven - S of Wonthaggi;31 - Nemertea;BQDAC0020;MRG822-42;Tetrastemma sp. SMSA008;SMSA008;SP02591;AN016084;NMVF290163;PID0127643
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