ZOOGEOGRAPHY 273 



The flabelliferan family Cirolanidae contains five stygobiont genera in the 

 Caribbean: Anopsilana, Arubolana, Bahalana, Creaseriella, and Haptolana (Figure 

 111). Six other genera are known fi-om the North American continent: 

 Antrolana, Cirolanides, Mexilana, Speocirolana, Sphaerolana, and Troglocirolana, all 

 of which, except Antrolana from the Appalachian Valley of Virginia, occur in 

 Mexico and Texas (see Notenboom, 1981). A few of these forms occur in 

 brackish water, but most are found in freshwater of caves. Cave cirolanids 

 are also known from Palau, North and East Africa, Madagascar, Bulgaria, 

 Greece, Jugoslavia, Israel, France, and Spain. This widespread distribution 

 again suggests a Tethyan marine origin, with dispersal and isolation due to 

 sea regressions. 



The suborder Microcerberidea and the asellotan family Microparasellidae 

 contain almost entirely interstitial forms, although few occur in caves. At 

 least two genera, Microcerberus and Angliera, have very widespread distribu- 

 tions and are known from marine, brackish-water, and freshwater habitats, 

 and may well have a history similar to that of Cyathura. 



