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>Ratlings (Homo sapiens minimus), Squats (Homo sapiens rotondus), Beastmen (Homo sapiens variatus), Troths (Homo sapiens verdantus), Longshanks (Homo sapiens elongatus), Pelagers (Homo sapiens oceanus_, Felinids (Homo sapiens hirsutus) and Neandors (Homo sapiens hyannothus) comprise the remaining classified, and officially recognised, abhuman races. Of these, Beastmen are subject to severe persecution and have been placed on the Register of Proscribed Citizens (Class A-G worlds) by the Adeptus Arbites. This effectively precludes them from settlement on, or transportation to or from, more than three hundred thousand worlds of the Imperium and forbids their conscription as an Imperial Tithe obligation. All of tis is a sure sign that they will soon lose abhuman status completely and be reclassified as true mutants. Troths, Felinids and Neandors are endemic, and restricted to the worlds of Verdant, Carlos McConnell and Hyannoth IV respectively. The remaining abhuman races are variously present across the entire Imperium. In some regions they are plentiful and common, living in large colonies or even populating entire worlds, in others they are scarce and virtually unknown.
So, let's break things down real quick; this entry specifically identifies Beastmen (variatus) as a strain of abhumans subject to persecution and then specifically defines that persecution to include travel restrictions. It then goes on to identify three more strains that are "endemic and restricted to" their respective homeworlds as a means of contrasting them against the remaining strains which are not unique to a specific planet; as, as has been previously states, Squats, Ogryns and Ratlings appear on a number of worlds for a variety of reasons.
So, just to bring it all home, the only abhumans that are forbidden to leave their planet(s) are Beastmen - everyone else may travel freely but, in the case of Felinids, are not so commonplace that they are known to reside elsewhere.