Genus Ephesiella Chamberlin, 1919

Type-species. Sphaerodorum abyssorum Hansen, 1878

Diagnosis. Body long and slender. Two dorsal longitudinal rows of macrotubercles, one pair per segment, may be absent in first chaetiger. Macrotubercles sessile, with terminal papillae. Two dorsal longitudinal rows of microtubercles, one pair per segment, running parallel between macrotubercles. Additionally, papillae arranged in 3–5 transverse rows on both dorsum and ventrum. Head appendages short, spherical or digitiform. Parapodia from chaetiger 2 with compound chaetae; hooks absent or present.