Cephalothrix unipunctata Parfitt, 1867

Kajihara, Hiroshi, 2019, Resolving a 200 - year-old taxonomic conundrum: neotype designation for Cephalothrix linearis (Nemertea: Palaeonemertea) based on a topotype from Bergen, Norway, Fauna norvegica 39, pp. 39-76 : 54

Cephalothrix unipunctata Parfitt, 1867

Remarks. Parfitt (1867: 213–214) established the species based on George Montagu’s unpublished manuscript, which read “Pale yellowish-white, with a lunate black spot before the eyes, the concave part of the luna in front; body filiform, gradually growing thicker towards the head; eyes black, and rather distant; length nearly an inch. Marine. Taken at Tor Cross. Rare”. McIntosh (1873 –1874) and Gibson (1995) placed it in the synonymy of the monostiliferous hoplonemertean Tetrastemma melanocephalum ( Johnston, 1837) . The generic name was incorrectly spelled Cephalotrix in the original description, but the specific name is deemed to have been published in combination with the correct original spelling, Cephalothrix , according to Article 11.9.3.2 of the Code (ICZN 1999).