Leucothoe lilljeborgii (nomen novum) (Boeck, 1861)

Leucothoe articulosa Lilljeborg, 1856: 126–128.

Leucothoe lilljeborgii (nomen novum) Boeck, 1861: 654. — Walker, 1895: 302. — Sars, 1895: 284–286, pl. 101, fig. 2. — Scott, 1899: 98. — Norman, 1900: 47. — Reibisch, 1905: 179, 180, pl. 5, fig. 5. — Stebbing, 1906: 167, 168, 724. — Scott, 1906: 155. — Tattersall, 1913: 8. — Davis, 1925: 40. — Chevreux & Fage, 1925: 124, fig. 121. — Stephensen, 1926: 65. — Stephensen, 1928: 155, 156, figs 13, 14. — Stephensen, 1929a: 92, fig. 22, 123. — Stephensen, 1929b: 27–38. — Oldevig, 1933: 91, 92. — Crawford, 1936: 100. — Schellenberg, 1936: 9. — Moore, 1937: 120. — Schellenberg, 1942: 126, 127, fig. 105. — Spooner, 1950: 249. —Marine Biological Association of the United Kingdom, 1957: 212. — Oldevig, 1959: 43. — Bruce, Coleman, & Jones, 1963: 153. — MacQuart-Moulin, 1968: 316. — Bellan-Santini & Ledoyer, 1972 (1973): 917. — Krapp-Schickel, 1975: 101–104, pl. 61. — Lincoln, 1979: 176, figs 77h–l, 79g –k. — Bellan-Santini, 1984: 273. — Moore, 1984: 21, 22. — Myers & Costello, 1986: 75–82, figs 2, 3. — Krapp-Schickel, 1989: 447, fig. 303.

Leucothoe furina Norman, 1869: 281 — Sars, 1883: 104.

Leucothoe imparicornis Norman, 1889: 114, pl. 10, figs 1–4.

Type locality and specimens. Kopervick, Norway. Holotype, male, 14 mm.

Material examined. No material available for examination. Diagnosis based on description by Sars (1895), Myers & Costello (1986), and Lincoln (1979).

Diagnosis. Gnathopod 1 coxa with serrate anterior margin; carpus proximal margin dentate; dactylus short. Gnathopods 1 and 2 bases with heavily setose posterior margins. Coxa 4 anterodistal corner sharp. Epimeron 3 posteroventral corner sinuous with simple cusp. Live specimens are yellowish white speckled with orange and pink.

Note. Several authors have suggested that L. lilljeborgii is synonymous with L. incisa; however, the differences between species are sufficient to keep them separate.

Female (sexually dimorphic characters). Gnathopod 2 carpus posterior margin much more setose than in the male.

Habitat. Fine sand or pure mud; 10–120 m.

Host. Unknown.

Distribution. North Atlantic Ocean: British Isles (Lilljeborg 1856; Boeck 1861; Sars 1895; Norman 1900; Stebbing 1906; Tattersall 1913; Chevreux & Fage 1925; Ruffo 1959; Stephensen 1929; Krapp-Schickel 1975; Lincoln 1979; Myers & Costello 1986 a; Krapp-Schickel 1989). Mediterranean Sea: France (Bellan-Santini & Ledoyer 1972).