Fig 1.
External morphology of a typical Mysida male.
Fig 2.
(A) Hansenomysis fyllae (Hansen, 1887). (B) Boreomysis megalops G.O. Sars, 1872, (C) Amblyops kempi (Holt & Tattersall, 1905).
Fig 3.
Mouthpart morphology of Mysida.
(A) left and right mandibles. (B) maxillule, Pseudomma antarcticum Zimmer, 1914. (C) maxilla, Pseudomma antarcticum. (D) maxillule, Stygiomysis holthuisi (Gordon, 1958). (E) maxilla, Stygiomysis holthuisi.
Fig 4.
Mysida and Stygiomysida thoracopods.
(A) General morphology. (B) thoracopod 1 (maxilliped), Leptomysis gracilis (G.O. Sars, 1864). (C) thoracopod 2 (maxilliped), Mysis relicta Lóven, 1862. (D) thoracopod 1 (maxilliped), Stygiomysis holthuisi (Gordon, 1958). (E) thoracopod 2 (maxilliped), Stygiomysis holthuisi. (F) thoracopod 3 (gnathopod); Heteromysis microps (G.O. Sars, 1877).
Fig 5.
(A) Boreomysis tridens G.O. Sars, 1870 (T&T, 1951.). (B) Gastrosaccus sanctus (van Beneden, 1861). (C) Siriella armata (Milne-Edwards, 1837). (D) Arachnomysis leuckartii Chun, 1887.
Fig 6.
Mysida and Stygiomysida pleopods.
(A) general morphology of male pleopod. (B) male pleopod with reduced endopod. (C) male pleopod 3, Siriella armata (Milne-Edwards, 1837). (D) general morphology of a reduced female pleopod. (E) female pleopod 1, Hansenomysis fyllae (Hansen, 1887). (F) female pleopod 2, Stygiomysis holthuisi (Gordon, 1958).
Fig 7.
Mysida and Stygiomysida uropods and telson.
(A) tail fan, Hansenomysis fyllae (Hansen, 1887). (B) telson, Stygiomysis holthuisi (Gordon, 1958). (C) telson, Archaeomysis grebnitzkii Czerniavsky, 1882. (D) telson, Siriella norvegica G.O. Sars, 1869. (E) uropods, Stygiomysis holthuisi (Gordon, 1958). (F) uropods, Archaeomysis grebnitzkii. (G) uropods, Siriella norvegica.
Fig 8.
Mineralized with fluorite (A, B) or with vaterite (C, D). (A) Schistomysis spiritus (Norman, 1860), ventral view. (B) Schistomysis spiritus, dorsal. (C) Schistomysis assimilis (G.O. Sars, 1877), ventral. (D) Schistomysis assimilis, dorsal.
Table 1.
Classification according to Dana (1852) [38].
Table 2.
Classification according to Czerniavsky (1882) [45].
Table 3.
Classification of the Mysidacea sensu Hansen, 1910, with additions by later authors.
Fig 9.
Species of Lepidomysidae (A) and Stygiomysida (B).
Fig 10.
Proposed phylogeny of the Stygiomysida and Mysida (Meland & Willassen [6]).
Table 4.
Classification of the Stygiomysida and Mysida according to Meland & Willassen [6]; with modifications by Wittmann [8] and Wittmann et al. [13] (tribes not shown).
Fig 11.
Number of known Mysida species recorded from the geographical regions proposed by Mauchline & Murano [91]