A monograph of the Oligochaete family Alluroididae Author Jamieson, Barrie G. M. School of the Environment, University of Queensland and 1 Maxwell Court, Coolum Beach, Queensland, Australia 4573. Author Fragoso, Carlos Red de Bioversidad y Sistmatica, Instituto de Ecologia A. C, Xalapa, Mexico. text Zootaxa 2024 2024-10-29 5529 3 401 435 http://dx.doi.org/10.11646/zootaxa.5529.3.1 journal article 10.11646/zootaxa.5529.3.1 1175-5326 14022623 C0662CC3-C5B1-4230-BF8D-EE6336A85242 Genus Righiella Omodeo & Coates, 2001 Type species: Righiella jamieson i Omodeo & Coates 2001 Alluroidinae with large, coiled prostates having a thin muscular sheath surrounded by a thick glandular sleeve. The vas deferens enters the prostate, not ectally but at the ental tip. Metandric, male pores lateral in XIII, in the place of the absent ventral setae. A large unpaired spermatheca formed by duct and ampulla situated in pregonadial segments, opening in the mid–dorsal line. Lateromuscular groove conspicuous. Remarks . Righiella differs from the African genera and Brinkhurstia in being metandric, from Kathrynella by the position of the male and spermathecal pores, and from both American genera in the absence of penial setae ( Table 1 ).