Tetrastemma tutum, Monastero, 1931

Kajihara, Hiroshi, 2025, A taxonomic revision of the freshwater monostiliferous hoplonemertean genus Prostoma Dugès, 1828 (Nemertea: Eumonostilifera): a radical solution or an over-lumping?, Zootaxa 5646 (4), pp. 451-500 : 481

18. tutum Monastero, 1931

Source. In the binomen “ Prostoma tutus ” by Monastero (1931: 59, fig. 8).

Type locality. A beach in Sferracavallo , Sicily, Italy .

Etymology. Latin adjective, tūtUs , - a, - um, meaning “safe, prudent; secure; protected”.

Remarks. Now Tetrastemma tutum ( Gibson 1995: 498, as “ Tetrastemma tutus ”), with the ending of the specific name being mandatorily changed in accordance with Articles 31.2 and 34.2. Monastero’s work on nemerteans from the coast of Palermo was published in Volume 16 of the third series of Atti della reale accademia di scienze, lettere e belle arti di Palermo in 1931.