Rosebud - incl. Jetty - PPB;31 - Nemertea;BQDAC0020;MRG897-05;Tetrastemma sp. SMSA018;SMSA018;SP03158;AN020488;NMVF290247;PID0190941
Species ID
OC-SP-0002964
Discovered
Phylum
Nemertea
Species ID
OC-SP-0002964
Provisional Species Name
Tetrastemma sp_SMSA018
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
This species is easily differentiated from other local species of Tetrastemma by the crescent shaped marks connecting ocelli on each side of head, and by COI sequence data.
Received All Minimal Data for Discovery
08/04/2026
Description of Material
Body 25 mm long, 1 mm wide, uniformly pale peach. Two pairs of ocelli. Cephalic lobe wider than neck, diamond shaped, 1.5 times longer than it is wide, separated from body by neck furrow, white in front of the anterior pair of ocelli. Anterior and posterior ocelli on each side are connected by a shallow crescent of light orange to sandy brown pigment. Oblique cerebral organ furrows visible dorsally and ventrally. Posterior tip sharply pointed. Rhynchocoel extends to near posterior tip. Stylet basis oval to pear-shaped, widest at its distal rounded end. S/B = 0.86. Two accessory stylet sacs with 2 stylets in each.
Ecology
Found in sponges on jetty pilings in the intertidal zone.
Distribution
Rosebud, Victoria, Australia
Scientific Name Authorship
Maslakova, Svetlana
Rosebud - incl. Jetty - PPB;31 - Nemertea;BQDAC0020;MRG897-05;Tetrastemma sp. SMSA018;SMSA018;SP03158;AN020488;NMVF290247;PID0190941
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