(Tristoma) (Tristoma) is a biological genus in the family Capsalidae and order Monopisthocotylea.
Tristoma adcoccineum
Tristoma adintegrum
Tristoma coccineum
Tristoma integrum
Tristoma papillosum
Ancyrocotyle
Benedenia
Benedeniella
Caballerocotyla
Capsala
Capsaloides
Encotyllabe
Entobdella
Megalocotyle
Neobenedenia
Nitschia
Pseudentobdella
Pseudobenedenia
Tristoma
Tristomella
Trochopus