Illaenus sarsi Jaanusson, 1954

1821     Entomostracites crassicauda Wahlenberg, 1821 — Wahlenberg, pp. 294, fig. 7: 6

1827     Asaphus (Illaenus) crassicauda Wahlenberg, 1821 — Dalman, pp. 250, fig. 5: 2a-f

1829     Trilobites Esmarkii Schlotheim, 1826 — Boeck, pp. 40

1835     Illaenus crassicauda Wahlenberg, 1821 — Sars, pp. 341, fig. 9:10

1837     Illaenus crassicauda Wahlenberg, 1821 — Hisinger, pp. 17, fig. 3: 5 ?

1854     Illaenus crassicauda Wahlenberg, 1821 — Angelin, pp. 41, fig. 24: 2, 2a ?

1880     Illaenus Dalmani Volborth, 1863 — Holm, pp. 16

1882     Illaenus Dalmani Volborth, 1863 — Brögger, pp. 97

1882     Illaenus Esmarkii (Schlotheim, 1826) — Holm, pp. 55, fig. 6: 8

1886     Illaenus Esmarkii (Schlotheim, 1826) — Holm, pp. 47-54, fig. 1: 1-6

1901     Illaenus Esmarkii Schlotheim, 1826 — Lindström, pp. 58, fig. 4: 26-30

1905     Illaenus Esmarkii Schlotheim, 1826 — Lamansky, pp. 57, 169

1907     Illaenus Esmarkii Schlotheim, 1826 — Schmidt, pp. 46

1934     Illaenus esmarkii Schlotheim, 1826 — Störmer, pp. 331

1936     Illaenus Esmarkii Schlotheim, 1826 — Siegfried, pp. 24, fig. 7a; 8: 2

1941     Illaenus esmarkii Schlotheim, 1826 — Störmer, pp. 116, 125, fig. 4

1954     Illaenus sarsi n. sp. — Jaanusson, pp. 575, fig. 2: 1-3

1957     Illaenus sarsi Jaanusson, 1957 — Jaanusson, pp. 114-123, fig. 4: 1-9

1973     Illaenus sarsi Jaanusson, 1957 — Bergström, fig. 5: 5-6

1976     Illaenus sarsi Jaanusson, 1957 — Reyment, pp. 10, fig. 28a-b

1980     Illaenus sarsi Jaanusson, 1957 — Tjernvik & Johansson, pp. 194