Genus Euperisiphonia Fraser, 1940a

Cryptolaria Busk, 1857: 173 .

Euperisiphonia Fraser, 1940a: 578 .

Type species. Euperisiphonia rigida Fraser, 1940a, by original designation.

Current status. Invalid.

Remarks. Fraser (1944a: 232) referred Euperisiphonia Fraser, 1940a to the synonymy of Zygophylax Quelch, 1885 by assigning its type species, E. rigida Fraser, 1940a, to that genus. However, Rees & Vervoort (1987) transferred Euperisiphonia to Cryptolaria Busk, 1857, and that synonymy has been adopted in the WoRMS list and in other works such as that of Vervoort & Watson (2003).