Some Data On the Systematics of the Family Limnoriidae (Isopoda) From Northern and Far-Eastern Seas of the U.S.S.R

Description of new species of algal-boring Limnoria (Crustacea, Isopoda, Limnoriidae) from Japan and redescription of Limnoria segnoides Menzies, 1957 and L. nagatai Nunomura, 2012

“…Although most Limnoria, for example, L. japonica and L. saseboensis, have a mandibular palp, the mandibular palp of L. furca sp. nov. is reduced to a seta, a condition also found in 6 other species: L. bacescui, L. bituberculata, L. nagatai, L. segnoides, L. uncapedis and L. zinovae (Cookson 1991, Pillai 1957, Kussakin 1963, Menzies 1957, Nunomura 2012, Ortiz & Lalana 1988. L. bacescui, L. bituberculata, L. segnoides, and L. uncapedis differ from L. furca sp.…”

“…The family Limnoriidae (Crustacea, Isopoda, Limnoriidea) is composed of three genera, Paralimnoria Menzies, 1957, Limnoria Leach, 1814, and Lynseia Poore, 1987. Eleven species in two genera, Paralimnoria and Limnoria, are found from Japanese coasts: P. andrewsi (Calman, 1910); L. borealis Kussakin, 1963;L. hiradoensis Nunomura 2008;L.…”

“…lignorum (Rathke, 1799); L. nagatai Nunomura 2012; L. rhombipunctata Yoshino, Watabe & Ohsawa, 2017; L. saseboensis Menzies, 1957; L. segnoides Menzies, 1957; L. tuberculata Sowinsky, 1884; L. zinovae Kussakin, 1963 (Richardson 1909, Shiino 1950, Menzies 1957, Kussakin 1963, Nunomura 2008, Nunomura 2012, Yoshino et al 2017. Within these species, L. nagatai, L. rhombipunctata, L. segnoides and L. zinovae are seagrass or algal borers (Menzies 1957, Kussakin 1963, Yoshino et al 2017, Yoshino et al 2018. L. rhombipunctata and L. zinovae have been collected from the rhizomes of the seagrass Phyllospadix iwatensis in Japan, but L. rhombipunctata in South Korea was found from the rhizomes of the seagrass Zostera sp.…”

A new species of seagrass-boring Limnoria (Limnoriidae, Isopoda, Crustacea) from Japan

“…lignorum Rathke, 1799; L. nagatai Nunomura 2012; L. saseboensis Menzies, 1957;L. tuberculata Sowinsky, 1884) (Richardson 1909, Shiino 1950, Menzies 1957, Kussakin, 1963, Nunomura 2008, Nunomura 2012) and 2 species are algae or seagrass borers (L. segnoides Menzies, 1957; L. zinovae Kussakin, 1963). L. segnoides was reported to have been washed from Corallina alga that had been collected at low tide in Misaki, Kanagawa Prefecture, Japan (Menzies 1957).…”

“…Here, we examine the features of L. magadanensis in detail to clarify diagnostic characters. L. magadanensis has been previously collected off Antonovo (formerly Randomari Village) on Karafuto Island and Cape Egorov on mainland Russia situated in the Sea of Japan (Kussakin 1963), as well as from Magadan port in mainland Russia and the Gulf of Patience (formerly Gulf of Taraika) on Karafuto Island situated in the Sea of Okhotsk (Jesakova 1961). This study is the first report of this species on Honshu Island, Japan.…”