TABLE 1 in Trans-Japan Sea land-bridge disjunction: A case of vicariance in the subterranean genus Nipponasellus (Crustacea, Isopoda, Asellidae) in a largescale biogeographical context

TABLE 1. Biogeographic relationships of sister-groups within Asellidae.
GenusTotal species per genusEco-morphological profileDistributionCaecidotea-Proasellus macrogroup (13 genera)Baicalasellus Stammer,4 specieswell-developed eyes andendemic of Baikal Lake and1932pigmentation, shallow watersAngaraBragasellus Henry &20 speciessurface and subterraneanIberian peninsulaMagniez, 1968lineages with vestigial eyes oranophtalmicCaecidotea Packard, 1871(ca. 99 spp.) a hugesurface and troglomorphicwest and east coast of Northgenus with severalpopulations with vestigialAmerica to Yucatánmorphogroupseyes or anophtalmicChthonasellus Argano &monotypicsubterranean linage,endemic of Piedmont, NW ItalyMessana, 1991anophtalmicGallasellus Henry &monotypicsubterranean linage,Nouvelle-Aquitaine, SWMagniez, 1977anophtalmicFrance, in hyporheaLirceolus Bowman &6 speciessubterranean lineages,Texas, USA, mostly in cavesLongley, 1976anophtalmicLirceus Rafinesque, 182015 speciessurface and subterraneanpreferably the southern Ontariolineages with vestigial eyes orand eastern United StatesanophtalmicNipponasellus Matsumoto,(7 spp.) along a couplesubterranean lineages,East Asia, Japan, South1962of a new species, withanophtalmicPrimorye, in hyporheasubdivision of the genusinto informal speciesgroupsProasellus Dudich, 1925(ca. 129 spp.) a hugesurface and troglomorphicCircum-Mediterranean, Europe,genus with severalpopulations with vestigialCaucasusmorphogroupseyes or anophtalmicRemasellus Bowman &monotypicsubterranean linage,endemic of Florida, USASket, 1985anophtalmic, troglobiticswimming speciesSalmasellus Bowman,2 speciessubterranean lineages,Canada, Washington, USA1975anophtalmicStygasellus Chappuis,monotypicsubterranean linage,K̂r̂s, Hungarian-Romanian1943anophtalmicborder, in hyporheaSynasellus Braga, 194434 speciessubterranean lineages,Iberian peninsulaanophtalmicCalasellus - Columbasellus interim-group (2 genera)Calasellus Bowman, 19812 speciessubterranean lineages,CaliforniaanophtalmicColumbasellus Lewis,monotypicsubterranean linage,endemic of Columbia RiverMartin & Wetzer, 2003anophtalmicbasin, USA, in wellsAsellus macro-group (5 genera, 3 sub-genera)Asellus (Asellus) Geoffroy,16 speciessurface and subterraneanEurope, Middle Asia, Siberia1762lineages with vestigial eyes orand East AsiaanophtalmicAsellus (Arctasellus) Henry & Magniez, 19953 speciessurface lineagesW Siberia, Chukotka and AlaskaAsellus (Mesoasellus) Birstein, 1939monotypicdepigmented, eyes partially reduced, at depthsendemic of Baikal LakePhreatoasellus Matsumoto, 19629 speciessubterranean lineages, anophtalmicEast Asia, S. Korea, JapanSibirasellus Henry & Magniez, 19932 speciessubterranean lineages, anophtalmicEast Asia, N Primorye, Khabarovsk? Uenasellus Matsumoto, 1962monotypicsubterranean linage, anophtalmicEast Asia, JapanLimnoasellus, nomen nudumprobably synonym of Mesoasellusunknownendemic of Baikal Lake
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