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Munehara, H.; Togashi, K.; Yamada, S.; et al. (2022). "Rhamphocottus nagaakii (Cottoidea: Rhamphocottidae), a new species of grunt sculpin from the northwestern Pacific, with notes on the phylogeography of the genus Rhamphocottus". Ichthyological Research. doi:10.1007/s10228-022-00885-y. hdl:2115/90323. S2CID251780579.
Munehara, H.; Togashi, K.; Yamada, S.; et al. (2022). "Rhamphocottus nagaakii (Cottoidea: Rhamphocottidae), a new species of grunt sculpin from the northwestern Pacific, with notes on the phylogeography of the genus Rhamphocottus". Ichthyological Research. doi:10.1007/s10228-022-00885-y. hdl:2115/90323. S2CID251780579.
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Munehara, H.; Togashi, K.; Yamada, S.; et al. (2022). "Rhamphocottus nagaakii (Cottoidea: Rhamphocottidae), a new species of grunt sculpin from the northwestern Pacific, with notes on the phylogeography of the genus Rhamphocottus". Ichthyological Research. doi:10.1007/s10228-022-00885-y. hdl:2115/90323. S2CID251780579.