New species of Ilyograpsus from the Ryukyu Islands, Japan, with notes on I. nodulosus Sakai, 1983

On a new species of <i>Mirograpsus</i> Komai & Fujita, 2018, from Vanuatu (Brachyura: Macrophthalmidae)

“…Komai & Fujita (2018) discussed the taxonomy of Mirograpsus at length, and the author agrees that despite its unusual carapace and male pleonal features, is a macrophthalmid and best placed in the Ilyograpsinae Štev i , 2005 (see also Komai & Wada, 2008;Naruse & Kishino, 2006). Mirograpsus serratipes n. sp.…”

Life history and behavior of a rare brackish-water crab, <i>Ilyograpsus nodulosus</i> (Sakai, 1983) (Macrophthalmidae)

“…Then, the second species of the genus was assigned to the family Grapsidae (Barnard, 1955). Naruse & Kishino (2006) reported on the taxonomic position of the genus in the family Macrophthalmidae.…”

“…Japanese I. nodulosus has been recorded from western Japan, including Wakayama, the Seto Inland Sea, and the Shikoku, Kyushu, and Ryukyu Islands (Komai & Wada, 2008), but their records are limited, and the species has been designated as near threatened (Japanese Association of Benthology, 2012). Only morphological descriptions of I. nodulosus and its larvae have been reported (Fukuda, 1978;Sakai, 1983;Sawada et al, 2005;Naruse & Kishino, 2006;Komai & Wada, 2008), and no study has reported on their ecological traits. The purposes of this study were to characterize the ecological traits of this species, such as life history and behavior, and compare them with other ocypodoids allied to the genus Ilyograpsus, such as species of Macrophthalmi-dae and Camptandriidae.…”