Genus Nicomache Malmgren, 1865: 189. Type species: Sabella lumbricalis Fabricius, 1780. Sabella Linnaeus, 1767: 1269. Clymene Savigny, 1818: 437.
8. Nicomache (Nicomache) antillensis Augener, 1922: 46, without figs. Holotype: USNM 20329. Type locality: Antigua.
N. antiguensis: Treadwell 1924: 16 –17, figs. 25–29; Jones 1962: 193 –194, figs. 91–95. N. (Nicomache) antillensis: Augener 1927: 70, without figs.; Jiménez-Cueto and Salazar-Vallejo 1997: 1462 –1463, figs. 3 a–e; De Assis et al. 2007: 28, tab. 1.
Geographic distribution: Caribbean Sea and Gulf of California.
9. Nicomache (Loxochona) arwidssoni Blake, 1985: 97 –100, figs. 20 a–g. Holotype: USNM 81856. Paratypes: USNM 81855; USNM 81853 – 4. Type locality: Galapagos rift, geothermal vents. N. (Loxochona) arwidssoni: De Assis et al. 2007: 29, tab. 1.
Geographic distribution: Known only from the type locality.
10. Nicomache (Nicomache) brasiliensis De Assis, Samiguel and Christoffersen, 2007: 33 –35, pl. 3, figs. 2 a– j. Holotype: CIPY – UFPB 112. Type locality: Cabo Branco beach, Paraíba state, Brazil. Geographic distribution: Known only from the type locality.
11. Nicomache (Loxochona) canadensis McIntosh, 1913: 83 –129, pl. 2, figs. 4–8, pl. 3, figs. 6–10. Holotype: BMNH, number of Holotype not mentioned in description. Type locality: Gulf of Saint Lawrence, Canada. Nicomache (Loxochona) canadensis: Treadwell 1948: 119 –122, fig. 35 b; De Assis et al. 2007: 29, tab. 1. Geographic distribution: Known only from the type locality.
12. Nicomache (Nicomache) lanai De Assis, Samiguel and Christoffersen, 2007: 31 –33, pl. 1, figs. 1 a–k. Holotype: CIPY – UFPB 238. Type locality: Cabo Branco beach, Paraíba state, Brazil.
Geographic distribution: Known only from the type locality.
13. Nicomache (Nicomache) lumbricalis (Fabricius, 1780): 134, fig. 1. Types: NSMT –Pol–K 97 8–800; K 97 – 11–200; K 97 – 11–900; NHRS; USNM Station 62 – 40; ZMUC.
Sabella lumbricalis Fabricius, 1780: 134, fig. 1.
Clymene lumbricalis Savigny, 1820: 94, figs. 23–26; Möbius 1873: 159, without figs.
Nicomache benthaliana McIntosh, 1885: 400, fig. 8.
Nicomache capensis McIntosh, 1885: 339, pl. 46, fig. 4; pl. 24, fig. 18, 19; pl. 37, fig. 2.
Nicomache carinata Moore, 1906: 242 –244, pl. 11, figs. 36–39, pl. 12, figs. 43, 44; 1923: 227.
Nicomache lumbricalis var. borealis Arwidsson, 1907: 94 –100, pl. 2, figs. 59–67, pl. 8, figs. 246–251; 1922: 9; Eliason 1920: 65.
N. (Nicomache) lumbricalis: Michaelsen 1897: 39; Arwidsson 1907: 86 –93, pl. 8, figs. 244–245; Ehlers 1908: 134; Fauvel 1927: 190 –191, figs. 66 a–i; Augener 1928: 764; Monro 1930: 173; Annenkova 1934: 322; Hartman 1944: 335 –342; 1948: 42; 1965 b: 204, 205; 1966: 67, pl. 22, figs. 67; figs, 1,7; 1969: 45; 1978: 194; Treadwell 1948: 52, fig. 35 c; Wesenberg-Lund 1948: 23 –27, figs. 10, 11; 1950: 41; Berkeley and Berkeley 1952: 54 –55, figs. 111–112; Pettibone 1954: 305 –306, figs. 34 i –j; Uschakov 1955: 336, fig. 124; Day 1955: 429; 1967: 21, figs. 30.1i–o; Eliason 1962: 73; Imajima 1964: 248 –249, figs. 39–41; 1997: 202; 2001: 86; Hartmann-Schröder 1971: 428 –430, figs. 149 a–f; Imajima and Shiraki 1982: 35 –36, fig. 14 a–n; 1997: 202; 2001: 86; Buzhinskaja 1985: 162; Lee and Paik 1986: 21 –22, fig. 5 a–h; Branch 1994: 9; De Assis et al. 2007: 28, tab.
Geographic distribution: Antarctic; North Atlantic; North West Pacific from Japan to Bering Sea; North East pacific from California to Canada; Arctic.
14. Nicomache (Loxochona) maculata Arwidsson, 1911: 1 –44, pl. 18, figs. 13–19, pl. 19, figs. 27–30. Type: BMNH. Type locality: Scandinavia.
N. (Loxochona) maculata: McIntosh 1913: 83 –129, without figs; Fauvel 1928: 1 –36, key; De Assis et al. 2007: 20, tab. 1.
Geographic distribution: Shetland Islands in the North Sea.
15. Nicomache (Nicomache) minor (Arwidsson, 1907): 100–104, pl. 2, figs. 68–73, pl. 8, figs. 252–256; Type: NSMT St. 1 (2), St. 6 (4), St. 7 (26). Type locality: Norway.
N. (Nicomache) minor: Uschakov 1955: 338, fig. 124; Imajima and Shiraki 1982: 39, figs. 16 a–m; Lee and Paik 1986: 20, fig. 5 a–h; Imajima 1992: 130; 1994: 119; De Assis et al. 2007: 29, tab. 1.
Geographic distribution: Norway; Japan; Okhotsk Sea, Russian; Bering Sea.
Remarks: Pettibone (1954) considered this species to be a synonym of N. personata Johnson, 1901. However, Imajima and Shiraki (1982) reported this species from Japan, and Lee and Paik (1986) reported it from Korea. These authors furnish detailed descriptions and illustrations, leading us to accept the validity of the original species.
16. Nicomache (Nicomache) monroi Hartman, 1967: 146, without figs. Type locality: Bismarck Strait, Palmer Archipelago in the Antarctic Ocean.
N. (Nicomache) monroi: Monro, 1930: 173 –175, figs. 71 a–g; De Assis et al. 2007: p. 28, tab. 1. Geographic distribution: Known only from the type locality.
17. Nicomache (Nicomache) mossambica Day, 1951: 52, figs. 7 a–f. Holotype: SAM A, not mentioned in description. Type locality: Africa: Delagoa Bay.
N. (Nicomache) mossambica: Day 1967: 622, figs. 30.1p–s; De Assis et al. 2007: 29, tab. 1. Geographic distribution: Delagoa Bay and Mozambique, Africa.
18. Nicomache (Loxochona) ohtai Miura and Hashimoto, 1991: 159 –165, figs. 1–3. Holotype: NSMT –pol. H– 326. Paratypes: USNM 127962; JAMSTEC 451. Type locality: Western North Pacific, cold-seep communities off Hatsushima, Sagami Bay, Japan.
N. (Loxochona) ohtai: De Assis et al. 2007: 30, tab. 1.
Geographic distribution: Known only from the type locality.
19. Nicomache (Loxochona) personata Johnson, 1901: 381 –437, figs. 134–139. Type: USNM Stations 60 – 40 (2); SMSBI St. S 8. Type locality: Southward of San Pedro, California.
N. (Loxochona) personata: Hartman 1948: 41 –42, figs. 11 d–g; Berkeley and Berkeley 1952: 54, figs. 109–110; Uschakov 1955: 339, without figs; Hartman-Schröder 1971: 428, figs. 150 a–d; Hobson and Banse 1981: 1 –144, fig. 17 c; Imajima and Shiraki 1982 a: 35 –37, figs. 15 a–k; Buzhinskaja 1985: 162, 163; De Assis et al. 2007: 29, tab. 1.
Geographic distribution: Pacific Coast of North America from Vancouver to southern Alaska and Japan.
20. Nicomache (Nicomache) plimmertonensis Augener, 1926: 204 –206, figs. 11 a–c. Holotype: not mentioned in description. Type locality: Plimerton Coast, New Zealand.
N. (Nicomache) plimertonensis: De Assis et al. 2007: 28, tab. 1.
Geographic distribution: Known only from the type locality.
21. Nicomache (Loxochona) quadrispinata Arwidsson, 1907: 108 –113, pl. 3, figs. 80–84, pl. 5, figs. 179– 180, pl. 8, 262–267. Type: ZMUC, number not mentioned. Type locality: Norway.
N. (Loxochona) quadrispinata: Augener 1928: 765; Wesenberg-Lund 1948: 27 –29, figs. 12–13; 1950: 41 – 12, without figs; De Assis et al. 2007: 29, tab. 1.
Geographic distribution: Greenland; Norway; Japan.
22. Nicomache (Loxochona) trispinata Arwidsson, 1907: 108 –113, pl. 2, figs. 74–77, pl. 3, figs. 78–79, pl. 8, figs. 257–261, pl. 11, fig. 349. Type: NMG 02541; ITATPS St. Z 402 (2), 425 (39), 426–450. Type locality: Norway.
N. (Loxochona) trispinata: Fauvel 1928: 1 –36, key; Eliason 1962: 23 –74; Hartmann-Schröder 1971: 428; Amoureux 1982: 179 –214, without figs; De Assis et al. 2007: 29, tab. 1.
Geographic distribution: Mediterranean and Black Sea; British Channel to North Sea; Artic.
23. Nicomache (Loxochona) venticola Blake and Hilbig, 1990: 242 –244. figs. 14 a–e. Holotype: NMCA 1989 –0219. Paratypes: NMCA 1989 –0099; NMCA 1989 –0089; NMCA 1989 –0100; NMCA 1989 –0216; NMCA 1989 –0217; NMCA 1989 –0218; NMCA 1989 –0220; NMNH 122714; NMNH 122715; NMNH 122716; NMNH 122717. Type locality: Hydrothermal vents of the northeastern Pacific.
N. (Loxochona) venticola: De Assis et al. 2007: 30, tab. 1.
Geographic distribution: Known only from the type locality.