LL'TZ, Lli^T OF GREATER AXTILLEAX SPIDERS 



139 



distribution is toned down hy a consideration of Ariadna, a genus which 

 with it forms the subfamily Segestriinse. Thus Segestria in Xew Zealand 

 is linked with Asia by Ariadna in Australia. Sumatra and Ceylon. See 

 fissure 7. 



By selecting certain genera or groups of genera of spiders it would be 

 easy to make quite a list in favor of a land bridge from South America 

 to Africa and elsewhere such as that shown in figure 8 which is after 

 A. E. Ortmann's idea of certain of the connections in L^pper Cretaceous 

 times. For example the following genera might l^e cited: CyatJioIipus 



Fig. 8. — One of the hypothetical Upper Cretaccoiis land masses 



cind Drijmusa, Antilles and South Africa; IscJniothyreus, Aniilles, AVest 

 Africa, Ceylon and Philippines; Caloctenus, Antilles, West Africa and 

 Malasia; Dyschiriognatlia, Antilles, Venezuela, Egypt, Ceylon, Borneo 

 and Japan; Opopcea,-^ Antilles, Peru, Colombia, Venezuela, Africa, 

 Arabia, Ceylon and Philippines; Anapis, Antilles, Venezuela, Brazil, 

 northwest Africa and Xew Caledonia; Oguhiius, Antilles, Brazil and 

 Ceylon; Episinopsis, Antilles, Peru and Malay Peninsula; Theotima and 

 Accola, Antilles, Venezuela and Philippines; Beata, Antilles, ]\Iexico to 

 Brazil and Africa; Syrisca, Colorado, Utah, Texas, Brazil and Africa; 

 Oxyopeidon, Arizona to Panama, Antilles, East Africa, India and Indo- 



^ Indeed the range of one species (0. descrticola Simon) is St. Vincent, Venezuela, 

 Egypt, Arabia and Pliilippines. 



