Righiella Omodeo & Coates, 2001

Jamieson, Barrie G. M. & Fragoso, Carlos, 2024, A monograph of the Oligochaete family Alluroididae, Zootaxa 5529 (3), pp. 401-435 : 428

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 ).