Resolving deep-sea pelagic saccopharyngiform eel mysteries: Identification of Neocyema and Monognathidae leptocephali and establishment of a new fish family "Neocyematidae" based on larvae, adults and mitogenomic gene orders - Fig 2

Line-illustrations of leptocephalus larvae of meso- and bathypelagic anguilliform families (A–K). A, Cyema (Cyematidae). B, “Leptocephalus holti”. C, Monognathidae (metamorphic stage). D, Unidentified saccopharyngiform. E, Saccopharynx (Saccopharyngidae). F, Eurypharynx (Eurypharyngidae). G, Serrivomer beani (Serrivomeridae). H, Nemichthys curvirostris (Nemichthyidae). I, Avocettina infans (Nemichthyidae). J, Derichthys serpentinus (Derichthyidae). K, Nessorhamphus ingolfianus (Derichthyidae). The dotted line separates the saccopharyngiform larvae from the larvae of other meso- and bathy-pelagic eel families. Illustrations A, C, D, F–K are reproduced or modified from Böhlke [1], B is modified from Smith and Miller [24], and E is modified from Castle [84] with permission under a CC BY license, from the Sears Foundation for Marine Research original copyright 1989, illustrator Mary H. Fuges, Yale University, and the American Society of Ichthyologists and Herpetologists, Lawrence, Kansas, respectively.