Taxonomic revision of the flathead genus Leviprora Whitley 1931, with recognition of Leviprora semermis (De Vis 1883) as a valid species (family Platycephalidae)

Abstract

The platycephalid genus Leviprora Whitley 1931 is taxonomically revised. Although the genus has been regarded as monotypic, including only Leviprora inops (Jenyns 1840) known from southern Australia, this study shows that Platycephalus semermis De Vis 1883, which was originally described from South Australia and has been considered to be possibly a junior synonym of L. inops, is the second nominal species of the genus. The two species are distinguished from each other by the number of pectoral-fin rays (18–19 in L. inops vs. 20–21 in L. semermis), the preocular spine (absent vs. present), fleshy sensory tubes on the cheek region (absent vs. developed), number of ducts of pored scales in the lateral line (one vs. two) and ratio of orbital diameter/interorbital width (2.3–4.7 vs. 1.5–2.8, both tending to decrease with growth). The present study presents a key to the species of the genus, detailed redescriptions and a comparison of the two species, and designates a neotype for L. semermis. This study also provides a revised diagnosis of the genus, owing to the new member of the genus and intraspecific variation in diagnostic characters.

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Acknowledgments

We are grateful to M. Gomon (NMV), A. Graham (CSIRO), M. Hammer and G. Dally (NTM), J. Macline (BMNH), M. McGrouther and A. Hay (AMS), and H. Wellendorf (NMW), for making specimens available. H. Larson (formerly NTM) kindly gave copies of her papers to the first author and M. Allen (WAM) supported HI when he visited WAM in 2017 and 2019. This study was partly supported by JSPS KAKENHI Grant Number 16K07472 funded to HI.

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Correspondence to Hisashi Imamura.

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Imamura, H., Moore, G.I. Taxonomic revision of the flathead genus Leviprora Whitley 1931, with recognition of Leviprora semermis (De Vis 1883) as a valid species (family Platycephalidae). Ichthyol Res 67, 275–286 (2020). https://doi.org/10.1007/s10228-019-00723-8

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Keywords

  • Teleostei
  • Scorpaeniformes
  • Synonymy
  • Neotype
  • Morphology