Genus Udeina Michaelsen, 1910 emend. Plisko, 2004

Holoscolex Ude, 1905: 421 (preoccupied by Cognetti de Martiis 1904).

Udeina Michaelsen, 1910: 53 .

Yagansia [partim] Michaelsen, 1899b: 237.

Udeina Michaelsen, 1910: 53, 1912: 4; Stephenson 1930: 671, 828; Pickford 1937: 416; Reynolds & Cook 1976: 62; Plisko 2004: 293; Blakemore 2008: 6.

Udeina Michaelsen, 1910 (applied for several species of Parachilota): Ljungström 1969: 370, Ljungström 1972b: 110.

Udeina Michaelsen 1890 [printing error for 1910]: Zicsi 1998: 443.

Type species. Yagansia kinbergi Michaelsen, 1899b: 443 .

Remarks. Ljungström (1969, 1972b) understood the balantine reduction in Udeina species as a variation occurring between avesiculate, acanthodrilinae species accredited by Pickford (1937) to Parachilota . Consequently, when describing new avesiculate species he did not make distinction between acanthodrilinae or balantine features and all his new species were placed in the genus Udeina Michaelsen, 1910 . The majority of these species belong to genus Parachilota Pickford, 1937 (see above and Plisko 2004, 2008).