1 Tetrastemma robertianae McIntosh, 1874;3 Tetrastemma vermiculus (Quatrefages, 1846);5 Tetrastemma candidum (Muller, 1774) head

Taxonavigation

Taxonavigation: Monostilifera 

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Phylum: Nemertea
Classis: Enopla
Subclassis: Hoplonemertea
Ordo: Monostilifera

Familia: Tetrastemmatidae
Genera: Algonemertes - Amphinemertes - Arenonemertes - Meionemertes - Nemertellina - Prostoma - Prostomatella - Prostomiopsis - Sacconemertella - Sacconemertes - Sacconemertopsis - Tetrastemma (Nemertea)

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